JIVE News Archive
NEWS:Magnetic control of massive stellar appetites (posted 18 February 2010)
A team of astronomers, including Dr. Huib Jan van Langevelde of JIVE, has shown that magnetic fields play an important role during the birth of massive stars. They report their work in the journal Monthly Notices of the Royal Astronomical Society. Read the full press release.NEWS:Astronomers in the Netherlands catch supernova, observe relativistic expansion (posted 27 January 2010)
Astronomers from JIVE and ASTRON have observed a supernova with peculiar radio emission. In a paper to be published in Nature, the team led by JIVE's Zsolt Paragi reports, for the first time ever, detection of a relativistic outflow in a Type Ic supernova, thus supporting the link with the even more energetic Gamma Ray Bursts. Read the full press release.NEWS:JIVE director Huib van Langevelde delivers New Year's speech (posted 11 January 2009)
In the traditional New Year's speech, Huib van Langevelde reviewed JIVE's highlights of 2009 and ambitions and challenges for 2010. Download the full text of the speech (PDF).NEWS:EXPReS hailed as "extraordinarily successful" and influential to SKA design (posted 9 December 2009)
The European Commission concluded their final review of EXPReS (Express Production Real-time e-VLBI Service), hailing the project as "extraordinarily successful" and encouraging the team to "explore any opportunity for further development". Read the full press release.NEWS:e-EVN aids detection of "extremely prolific supernova factory" (posted 4 December 2009)
The electronic European VLBI Network (e-EVN) was critical in the detection of an "extremely prolific supernova factory" in the buried nucleus of a starburst galaxy last year. The results are published in Astronomy & Astrophysics. Read the full press release.NEWS:European VLBI Network to participate in "100 Hours of Astronomy" with live webcast and e-VLBI observations (posted 16 March 2009)
The European VLBI Network will showcase the e-VLBI astronomical technique in the "100 Hours of Astronomy" with a live webcast on Friday 3 April and e-VLBI observations on Friday 3 April and Sunday 5 April. "The 100 Hours of Astronomy" is a cornerstone project of the International Year of Astronomy. Read the full press release.NEWS:Radio astronomers detect water maser emission from the Saturnian system (posted 5 February 2009)
An international team of radio astronomers led by JIVE's Sergei Pogrebenko has discovered that several areas associated with various bodies of the Saturn system demonstrate statistically significant indications of water vapour maser emission. The results are published in the current issue of Astronomy and Astrophysics. Read the full press release.NEWS:Marathon e-VLBI images, educational e-VLBI Web site and Virtual Radio Interferometer now available online (posted 28 January 2009)
A "movie" of the sequential, automatically-generated images and three hand-crafted images (image 1, image 2, image 3) of the target source J0204+1514, observed during the "marathon" e-VLBI observation 15-16 January, are now available. This observation was demonstrated live during the International Year of Astronomy Opening Ceremony along with an educational web site about e-VLBI and Virtual Radio Interferometer, both of which are also available online.NEWS:Radio-astronomers conduct marathon observation with world-sized telescope (posted 13 December 2008)
17 radio telescopes around the world will conduct a nearly continuous 33-hour observation as part of a demonstration at the opening ceremony for the International Year of Astronomy 2009 in Paris 15-16 January. Read more.NEWS: SKA Identified as an Essential Facility for the Future of European Astronomy (posted 9 December 2008)
The Square Kilometre Array has been ranked joint top priority by the ASTRONET consortium of European funding agencies as they unveiled Europe's 20 year plan for astronomy. SKA builds on numerous technologies and techniques, including e-VLBI pioneered at JIVE. View the full press release here.
NEWS: "Naked-eye" gamma-ray burst was aimed squarely at earth (posted 11 September 2008)
Unparalleled data from satellites and observatories around the globe, including the Westerbork Synthesis Radio Telescope, show that the jet from a powerful stellar explosion March 19 was aimed almost directly at Earth. A paper about these observations of GRB 080319B, coauthored by JIVE Support Scientist Zsolt Paragi, appears in today's issue of Nature. View the full press release here.
NEWS: Radio astronomers detect "baby quasar" near the edge of the visible Universe (posted 4 June 2008)
An international group of radio astronomers has detected an unexpected morphology in quasar J1427+3312, the most distant radio quasar known to date. View the full press release here.
NEWS: Effelsberg joins the e-EVN (posted 9 April 2008)
On 1 April 2008, EXPReS conducted the first e-VLBI observation to include the 100 meter telescope at Effelsberg, Germany. View the full press release here.NEWS: First e-VLBI data from China-Australia, China-Europe and Australia-Europe baselines (posted 29 August 2007)
Collaborators in the EXPReS project conducted the first successful real-time correlation of e-VLBI data from China-Australia, China-Europe and Australia-Europe baselines, the longest baseline eVLBI experiment to date. A full press release is available here.
NEWS: Dr. Huib Jan van Langevelde is the new director of JIVE
Huib Jan van Langevelde (44) has been a member of the JIVE staff for 12 years, holding various positions. Recently he has managed various international projects related to astronomical user software and computing. His astronomical research focuses on the circumstellar matter around young and old stars, with an emphasis on astrophysical masers. A full press release is available here.
NEWS: First 512 Mbps e-EVN image from six stations (posted 1 August 2007)
On the 26th of June the e-EVN carried out the first 512 Mbps observations with six stations. The target source (J0000+4054, a compact symmetric object) was observed for about three hours. See the image and read the press release here.NEWS: Job vacancy at JIVE (posted 1 August 2007)
The Joint Institute for VLBI in Europe is seeking applications for the position of Senior Support Scientist. Details and job particulars can be found on the Jobs at JIVE page.NEWS: First e-EVN image using 512 Mbps data rate (posted 23rd February 2007)
The e-EVN has achieved its first operational experimental run at 512 Mbps. You can read about this milestone achievement on the EXPReS project website.NEWS: Job vacancy at JIVE (posted 16th February 2007)
The Joint Institute for VLBI in Europe is seeking applications for the position of Director of JIVE. Details and job particulars can be found on the Jobs at JIVE page.NEWS: Job vacancy at JIVE (posted 12th February 2007)
The Joint Institute for VLBI in Europe is seeking applications for the position of JIVE Support Scientist. Details and job particulars can be found on the Jobs at JIVE page.NEWS: JIVE launches NorthStar proposal tool (posted 20th January 2007)
A new web-based proposal tool, NorthStar, has been adopted by the EVN. To submit an application for time on the EVN, go to the NorthStar website, register as a new user and follow the instructions given in the help file that you will find on the welcome page.NEWS: Public Open Day at JIVE (posted 16th October 2006)
As part of its committment to public outreach, JIVE is opening its doors to the general public on Sunday, 22nd October 2006. There will be activities, displays and multimedia demonstrations of the work that we do here at JIVE. There will also be plenty of opportunities to talk to our members of staff about all aspects of astronomy and VLBI in particular. All are welcome from 12:00 to 17:00 hours.NEWS:Radio astronomers record final moments of SMART-1 spacecraft (posted 4 September 2006)
The European Space Agency's SMART-1 spacecraft completed its almost three year mission early Sunday, 3 September, with a controlled impact with the surface of the Moon. A network of radio telescopes, led by European radio astronomers from JIVE observed SMART-1 and recorded key data during its final moments and impact. View the full press release here.NEWS: Radio astronomers listen to a swan song from the Moon (posted 31 August 2006)
European radio astronomers led by a team from JIVE will monitor radio transmissions from SMART-1 using TIGO (Transportable Integrated Geodetic Observatory, Concepcion, Chile), ROEN (Northeastern Space Radio Observatory, Fortaleza, Brazil), Mt. Pleasant Observatory (Hobart, Australia) and the Australia Telescope Compact Array (Narrabri, NSW, Australia). View the full press release here.NEWS: JIVE VLBI team tracks SMART-1 lunar satellite. (posted 27th July 2006)
The JIVE VLBI team has run a successful tracking campaign in the run-up to the planned impact of the ESA SMART-1 spacecraft with the moon in 3rd September 2006. "It is exciting that worldwide radio telescopes can listen to SMART-1 until impact", said Bernard Foing, SMART-1 Project Scientist. You may view the full ESA press release here.NEWS: JIVE hosts Next Generation Correlators Meeting (posted 28th June 2006)
Between the 27th and 29th of June 2006 JIVE is hosting the RadioNet Engineering Forum Workshop "Next Generation Correlators for Radio Astronomy and Geodesy". Further details are available on the RadioNet WikiEuropean VSOP-2/Astro-G Kickoff Meeeting (posted 22nd May 2006)
On June 15th 2006 JIVE will be hosting the European VSOP-2/Astro-G Kickoff Meeting. See the European VSOP-2/Astro-G Meeting webpage for further details.Job vacancy at JIVE (posted 15th May 2006)
JIVE is pleased to invite applications for the position of JIVE Support Scientist. Details can be viewed on the Jobs at JIVE webpage.e-VLBI project wins IDEA award (posted 2nd May 2006)
The e-VLBI project, led at JIVE by Arpad Szomoru, has received a prestigious award for its progress in high speed data transfer at the inaugural IDEA awards ceremony held on April 21st 2006. The winning team comprised Arpad Szomoru (JIVE), Alan Whitney (MIT Haystack Observatory), Yasuhiro Koyama (NICT) and Hisao Uose (NTT Laboratories GEMnet2/GALAXY Project).The Internet2 IDEA Awards program encourages innovative advanced network applications that have had the most positive impact within the research and education community. This year's IDEA award winners represent applied advanced networking at its best, and hold the promise to increase the impact of next-generation networks around the world. The four winning applications, announced on 21 April, were judged on the depth of their positive impact on their primary users, the technical merit of the application, and the likelihood the application would be more broadly adopted. You can read more about the IDEA awards here.
JIVE Board Meeting (posted 30th March 2006)
The EVN Consortium Board of Directors and Executive Meeting, and the JIVE Board Meeting will take place on 18th and 19th of May 2006 in Florence. Further details may be obtained here.JIVE evaluation: ESF Panel Report Published (posted 28th February 2006)
In late January 2006, a panel set-up by the European Science Foundation visited JIVE in order to review our activities over the last 5 years. The Panel's Evaluation Report is very positive and was approved by the ESF Executive Board a few days ago. JIVE's user support was described as "outstanding" and the astronomical research of JIVE staff was rated (using NWO's criteria) as a "5 = excellent". The panel also praised our efforts in raising external funding, training young researchers, and the leading role JIVE is playing in VLBI R&D (in particular e-VLBI and the development of new VLBI science applications e.g. the Huygens VLBI project). The panel also recognised the need to start work on a replacement for the current EVN Data Processor and strongly endorses our intention to re-negotiate a new MoU with the JIVE funding partners over the next 5 year period (2008-2012). The panel's report provides us with a solid basis on which to embark on these projects. The full report is available online here.Next Generation Correlator Meeting at JIVE (posted 20th February 2006)
The 3rd RadioNet Engineering Forum Workshop "Next Generation Correlators for Radio Astronomy and Geodesy" will be hosted by JIVE, June 27th-29th, in Groningen, the Netherlands. More information may be found on the Radionet Wiki.NAOC joins JIVE (posted 14th February 2006)
In January 2006, the National Astronomical Observatory of China (NAOC) officially joined JIVE - as a full funding partner. This represents an important step forward for all parties, and emphasises the signifcant and growing contribution that the Chinese VLBI community is making to the EVN. The bilateral agreement between JIVE and the NAOC runs for the next 3 years - the signing ceremony took place at the recent JIVE board meeting at the MPIfR, Bonn. This was also the last JIVE Board meeting for Roy Booth. Roy has served as a distinguished member on the board since JIVE was founded in 1993 and was its first chairman (1994-1999). The signing formalities were concluded with a glass (or two) of Champagne!ESF evaluation panel visit JIVE (posted 25th January 2006)
On 21-25 January 2006, an ESF evaluation panel conducted a review of JIVE (2000-2004). The panel, chaired by Prof. Ian Butterworth (Imperial College, London and a former director of CERN), visited Dwingeloo and listened to presentations by members of staff. The panel were introduced to all members of JIVE staff and made a tour of the facilities.Photographs of the ESF Panel meeting with JIVE staff are available here. The panel will present their report to the ESF council in early February.
JIVE/ASTRON Summer Student Program (posted 23rd January 2006)
JIVE, in partnership with ASTRON are offering the opportunity for a number of Graduate or advanced Undergraduate astronomy students to undertake research at the Dwingeloo observatory during the summer of 2006. This is a fantastic opportunity to work on a real research program with scientists at JIVE. Details can be found at the JIVE Summer Studentship page.
Job Vacancies (posted 17th January 2006)
JIVE invites applications for a Project Manager, a Public Outreach Officer, a Scientific Software Engineer, a Sofware Engineer/Linux Specialist and a Network Engineer in the e-VLBI project (EXPReS). More details can be found on the Jobs at JIVE page.
Job Vacancies (posted 12th January 2006)
JIVE invites applications for two postdoctoral positions in e-VLBI and Astronomical Computing. More details can be found on the Jobs at JIVE page.
Job Vacancy (posted 12 Dec 2005)
JIVE invites applications for the position of Postdoctoral research assistant in Square Kilometre Array Simulations. More details can be found on the Jobs at JIVE page.
First Scientific Results from Huygens - role of JIVE (posted 9th December 2005)
The first major scientific results from the ESA Huygens mission to Titan
recently appeared in the journal "Nature".
The 8 December 2005 issue of Nature(vol. 438, 756) presents 7 papers on the Huygens mission
alongside latest findings of the Cassini spacecraft that orbits Saturn since July 2004. The
mission represents a massive international effort led by three space agencies (NASA, ESA and
the Italian Space Agency, ASI) and dozens of institutes from around the world. JIVE, among
other partners, shares in the excitement of the Huygens
discoveries; JIVE scientists co-authored two of the seven Huygens-based papers in Nature
(Lebreton et al. 2005, Bird et al. 2005).
See the ESA
Press Release and Nature web
site for more details.
Contact information:
- Dr. Leonid Gurvits
- lgurvits@jive.nl; +31-(0)629-015149 (mobile); +31-(0)521-596500
- Dr. Sergei Pogrebenko
- pogrebenko@jive.nl, +31-(0)521-596500
The International Academy of Astronautics awards an international group of radio astronomers (posted 13 Oct 2005)
The International Academy of Astronautics (IAA) has announced its annual Laurels for Team Achievement Award for 2005 to the VSOP Team. The award is to be presented at the 56th International Astronautics Congress in Fukuoka, Japan, on 16 October 2005. The team includes scientists and engineers from Japan, Australia, Canada, Europe (The Netherlands) and the USA. The previous recipients of this award are the Russian Mir Space Station Team (2001), the US Space Shuttle Team (2002), the Solar and Heliospheric Observatory (SOHO) Team (2003), and the Hubble Space Telescope Team (2004).
More information is available in the Press Release (HTML or printable PDF-version).
Contact information:
- Dr. Leonid Gurvits
- lgurvits@jive.nl; +31-(0)629-015149 (mobile); +31-(0)521-596500
- Dr. Huib van Langevelde
- langevelde@jive.nl; +31-(0)621-201419 (mobile); +31-(0)521-596500
- Ms. Frederiek Westra van Holthe
- westra@astron.nl; +31-(0)521-595100
Job Vacancy (posted 30 Sep 2005)
JIVE invites applications for the position of Secretary (24-28 hours a week). More details can be found on the Jobs at JIVE page, or by downloading the advertisement in pdf format.
Job Vacancy (posted 26 Aug 2005)
JIVE invites applications for the position of Head of Data Processor Research and Development. More details can be found on the Jobs at JIVE page.
JIVE Hosts European Commission PR Event on the Future of Astronomy Research Infrastructures (posted 11 Jul 2005)
The EC PR event hosted by JIVE on the 7th July (see previous news item) was a tremendous success and was attended by more than 60 journalists from all over the EU. A few photos of the event are available. Details of the press briefing, including links to presentations and other documents, are available on this page of the CORDIS website.
Scientists at JIVE and ASTRON are preparing for radio observations of 9P/Tempel 1, target of Deep Impact (posted 1 Jul 2005)
On 4 July 2005, a probe released by the NASA Deep Impact mission spacecraft will crash into the nucleus of comet 9P/Tempel 1. The goal of this experiment is to learn more about comet nuclei: what is their structure, and what do they consist of? The fly-by spacecraft, together with several major observatories on Earth and in space are prepared to follow the event. A team of scientists at JIVE and ASTRON are also getting ready for the big day, preparing to observe the comet with the l4 telescope Westerbork array.
More information is available in the Press Release.
Contact information:
- Dr. Zsolt Paragi
- zparagi@jive.nl; +31-(0)521-596500
- Dr. Richard Strom
- strom@astron.nl; +31-(0)521-596500
JIVE Hosts European Commission PR Event on the Future of Astronomy Research Infrastructures (posted 29 Jun 2005)
On the 7 July, JIVE will host a large PR event that will look towards the future of Research Infrastructures in Astronomy. The event is being organised by the European Commission and will be attended by EC Commissioner Janez Potocnik (European Commissioner for Science and Research) and Minister Maria van der Hoeven (Dutch minister for Education, Culture and Science). About 70 top journalists from across the EU are expected to attend, together with the Coordinators of the various astronomical projects supported by the EC (including RadioNet, OPTICON, EUROPLANET, ILIAS, ELT DS, ALMA Enhancement, VO-TECH & SKADS).
The highlight of the day will be the demonstration of e-VLBI - a technique in which radio telescopes are connected to the supercomputer at JIVE via a high-speed optical fibre network (GEANT, operated by DANTE). Preliminary results from the successful radio and VLBI observations of the ESA Huygens probe as it descended through the atmosphere of Titan in January will also be presented by JIVE scientific staff.
Contact information:
- Dr. Mike Garrett
- garrett@jive.nl; +31 (0)621-201417 (mobile); +31-(0)521-596500
- Dr. Huib van Langevelde
- langevelde@jive.nl; +31 (0)621-201419 (mobile); +31-(0)521-596500
- Dr. Leonid Gurvits
- lgurvits@jive.nl; +31 (0)629-015149 (mobile); +31-(0)521-596500
Radio astronomers measure the galactic dance of a neighboring galaxy (posted 03 Mar 2005)
Using an array of radio telescopes, an international team of astronomers has fulfilled an 80 year old dream, measuring for the first time the motion of an entire galaxy in the sky. The astronomers hope to predict with these measurements the future fate of our own galaxy, the Milky Way, and determine the dark matter content in the local universe. The team reporting the results in this week's issue of the magazine "Science", was led by the young radio astronomer Andreas Brunthaler from the Joint Institute for VLBI in Europe (JIVE) in Dwingeloo. More information is available in the Press Release (Nederlandse versie & English version)
Brightest Explosion Ever Observed Overwhelms Telescopes (posted 17 Feb 2005)
Astronomers have detected a flash of light from across the Galaxy which at its peak was brighter than the full moon for a tenth of a second. The event is associated with an unprecedented eruption on the surface of an exotic neutron star, known as a Magnetar. Satellites and an array of ground-based radio telescopes have been studying the giant flare since its discovery on 27 December 2004. Scientists from twenty institutes (including JIVE) will report their results in "Nature". More information is available in the Press Release (Nederlandse versie & RAS English version) and via these animations of the event.
Winds on Titan: First Measurements from the Huygens Descent (posted 09 Feb 2005)
Scientists have harvested further fruit from the observations of the Huygens probe in the atmosphere of Titan on 14 January. Measurements of the carrier radio signal from the descending probe have yielded preliminary estimates of how wind speeds on Titan vary with altitude. These radio Doppler measurements, which reflect the relative speed between the transmitter on Huygens and the receiver on the Earth, were obtained by radio telescopes that were part of a global network listening directly to the probes signal. The ground-based network of 17 telescopes in the Australia, China, Japan and the USA, was coordinated by the Joint Institute for VLBI in Europe, and NASAs Jet Propulsion Laboratory. More information is available in the Press Release (English version and/en Nederlandse versie).
JIVE Huygens radio interview (posted 21 Jan 2005)
JIVE scientist Huib van Langevelde has been interviewed by a Dutch radio station about the recent successes involving the landing of the Huygens probe on Saturn's moon Titan. mp3 file of Huygens radio interview. We are grateful for NOS Radio 1 Journaal for allowing us to place this on our site.
Successful transfer of Huygens probe tracking data from Australian telescopes to JIVE (posted 18 Jan 2005)
Nine organisations from four countries, with AARNet, Australia's Academic & Research Network, providing a coordinating role, were involved in the successful electronic transfer to the EVN data processor at JIVE of data collected by Australian telescopes from the Huygens space probe as it plunged through the clouds of Titan on 14 January 2005. More information is available in the AARNet press release.
Huygens detected by GBT! (posted 14 Jan 2005)
As part of the VLBI tracking of the ESA's Huygens planetray probe, the R.C.Byrd Green Bank Telescope of the National Radio Astronomy Observatory equipped with the ESA/JIVE-supplied Mk5 recorder was the first to detect the Huygens' carrier signal at the frequency of 2040 MHz. The spectrum with resolution of 900 mHz is obtained with the JIVE's Huygens Software Correlator will be used for reconstruction of the vertical profile of the wind in Titan's atmosphere. You can also hear Huygens as detected by the GBT during the descent.
Contact information:
- Dr. Mike Garrett
- garrett@jive.nl; +31 (0)621-201417 (mobile); +31-(0)521-596500
- Dr. Leonid Gurvits
- lgurvits@jive.nl; +31 (0)629-015149 (mobile); +31-(0)521-596500
- Dr. Huib van Langevelde
- langevelde@jive.nl; +31 (0)621-201419 (mobile); +31-(0)521-596500
Radio astronomers prepare to track the Huygens Probe in the atmosphere of Titan (posted 25 Dec 2004)
When the Huygens Probe makes its plunge into the atmosphere of Saturn's moon Titan on 14 January 2005, a network of radio telescopes located in Australia, China, Japan and the USA connected to the Data Processing centre at the Joint Institute for VLBI in Europe (JIVE) will help international teams of scientists extract the maximum possible amount of irreplaceable information from a planetary mission unique in human history. Details of this challenging VLBI experiment coordinated by JIVE and ESA scientists are described in the Press Release (HTML or PDF-version) and in JIVE Research Notes available at www.jive.nl/docs/resnotes/resnotes.html.
Further eVLBI Progress (posted 21 Dec 2004)
Jodrell Bank's new 2.5 Gb/s connection was used in an eVLBI test for the first time yesterday (20th Dec 2004). Real-time fringes to Jodrell were detected from Westerbork, at 128Mb/s, and from Torun at 256Mb/s. These are the highest real-time eVLBI data rates achieved in Europe so far, quadrupling the previous record. This fringe plot shows individual integrations, for one sub-band, on the Jodrell Bank-Torun baseline.
JIVE on Dutch radio (posted 28 Oct 2004)
Huib van Langevelde was recently interviewed by Dutch radio on the subject of eVLBI. If you understand Dutch then you can listen to an mp3 file of the interview.
eVLBI Science Press Release (posted 04 Oct 2004)
More information on the first eVLBI Science experiment is available in a press release (PDF).
eVLBI Science (posted 27 Sep 2004)
The first eVLBI science demonstrations took place 22 Sep 2004 with four telescopes of the EVN observing spectral line sources. The data has already been made public. More information on this latest eVLBI advance can be found at the EVN Newsletter.
eVLBI Fringes to Arecibo (posted 17 Sept 2004)
On Friday 10th September, real-time fringes were detected between the 305m Arecibo radio telescope and three EVN antennas. See the EVN web pages for details.
JIVE on German radio (posted 14 Sep 2004)
JIVE and eVLBI were featured yesterday on a German radio station "Deutschland Radio", the transcript of which will be of most interest to those who can read German.
Real-time eVLBI Press Release (posted 18 May 2004)
A Press Release regarding the recent production of the first EVN real-time image can now be downloaded.
First real-time EVN image (posted 29 Apr 2004)
The first real-time EVN image was produced yesterday from observations carried out using three EVN telescopes (Onsala, Jodrell Bank and Westerbork). The data rate was 32Mb/s, this data being transferred from the stations directly into the EVN MkIV correlator at JIVE. The source observed was a double-image lens system, the expected structure being easily recovered in the map.
Interstellar Scintillation Workshop (posted 01 Apr 2004)
A workshop on ISS will be held at ASTRON/JIVE from 5-7 April 2004. Topics that will be covered include radio IDV in quasars/BL Lacs, scintillation of Gamma-Ray Burst afterglows, characteristics of interstellar turbulence and future telescopes. For further information or to register your interest in attending the workshop, please contact Hayley Bignall and/or view the ISS workshop web pages.
A Radio telescope for Ireland (posted 25 Mar 2004)
Today sees the launch, in Dublin, of a project to build a radio telescope in Ireland, "A Radio Telescope for Ireland" (ARTI). It is envisaged that this will have a 32-m diameter dish and participate in observations with both the EVN and MERLIN, as well as performing stand-alone observations. More details are obtainable from the Project Coordinator (and ex-JIVE employee!) Denise Gabuzda (gabuzda@phys.ucc.ie).
Research jobs - ANGLES consortium (posted 19 Jan 2004)
A new European consortium dedicated to gravitational lens research has been funded as part of the EU FP6 programme, ANGLES. JIVE is the coordinating node for the Netherlands partners which includes ASTRON and the University of Groningen. Although the consortium officially begins 1 April, ANGLES is currently advertising for prospective research studentships, one of which will be based in the Netherlands. More details can be found at the ANGLES website (a link to this is now included on the JIVE menu bar to the left of every page).
First European eVLBI image (posted 19 Jan 2004)
The first European eVLBI image was produced Friday 16 January at JIVE, from data transferred only 24 hours earlier. The image, as well as more detailed information about this latest eVLBI success, can be found at the following EVN eVLBI map page. You can also view the proud fathers at the time of data delivery. (Or should they be midwives?) GÉANT press release.
Job Vacancies (posted 12 Jan 2004)
JIVE invites applications for the posts of Software Engineer and Post-Doctoral Research Assistant in Data Processing Techniques. More details can be found on the Jobs at JIVE page.
2004 Summer Studentships (posted 07 Jan 2004)
JIVE invites applications for the 2004 Summer Student Programme. More details can be found in this announcement of opportunity and on the JIVE summer students webpage.
15-minute fringes! (posted 26 Nov 2003)
Monday November 24 saw the correlation of data at JIVE (64 Mbps) from telescopes at Westerbork and Jodrell Bank that had been recorded directly at JIVE onto Mark5 units. Fringes were detected after only 15 minutes! More information.
EC Research Publication (posted 26 Nov 2003)
The European Commission have just released a preliminary version of a document entitled "Changing the way research is done - The user perspective on e-Infrastructure". This includes a contribution from JIVE Director Mike Garrett describing the use of the GÉANT network for real-time VLBI.
Remote recording at JIVE (posted 19 Nov 2003)
During a recent (November 7) experiment a single scan of Westerbork data was sent directly to JIVE, via the Wb-JIVE optical-fibre, where it was recorded on a Mark5 unit. The same data were also recorded on tape at Westerbork. Last week the tape and disk data were correlated, giving good confidence that the remote recording was good. Final confirmation was achieved when the Westerbork disk was correlated with Effelsberg data - FRINGE! The data recording rate was 256Mb/s.
Bonn-Dwingeloo Meeting (posted 07 Nov 2003)
The 2003 Bonn-Dwingeloo Meeting took place on wednesday 5 November. Clicking on the link will enable you to access this meeting's webpage which includes the programme as well as many photos of the various events that took place during the day.
Opendag photos (posted 27 Oct 2003)
The 2003 JIVE/ASTRON Opendag was held on October 19 in the main ASTRON/JIVE building near Dwingeloo. The day was a huge success as can be seen from the following Opendag photos.
GÉANT video now available (posted 22 Oct 2003)
DANTE (the operators of GÉANT) have produced a video which describes the network and its capabilities, with specific reference to several scientific research projects that intend to utilise its high-speed (10Gbps) pan-European connectivity. Prominent amongst these is eVLBI, with Mike Garrett (the director of JIVE) interviewed. Download the video from the JIVE website in a variety of formats.
Bonn-Dwingeloo Meeting Programme (posted 03 Nov 2003)
The 2003 Bonn-Dwingeloo Meeting Programme has just been made available.
EVN MkIV Data Processor output data rate increased (posted 26 Sep 2003)
The EVN MkIV Data Processor at JIVE has achieved quarter-second integrations using the whole correlator. The previous limit was 1s. Please view a comparison plot demonstrating the shorter integration times. The equivalent output (user) data rate is 3000 kB/s. These shorter integration times will reduce time-smearing for wide-field applications. This improvement is the first step along the way to the Post-Correlator Integrator (which aims to provide integration times for the whole correlator down to 1/64 s) and recirculation (which would increase spectral resolution attainable per IF/polarization).
Note that this present reduction in integration times does not affect the spectral resolution of the correlator; but the same configurations that previously worked with 1s would now work with 0.25s. Some examples of configurations that use the whole correlator include:
| #sta | #if | #pol | #frq points (per IF/pol) |
|---|---|---|---|
| 4 | 1 | 4 | 2048 |
| 8 | 1 | 1 | 2048 |
| 8 | 2 | 1 | 1024 |
| 16 | 8 | 4 | 16 |
Proposals for experiments that require integration times down to 0.25s are now welcome. For current information about system limits on the EVN Data Processor follow the links on the JIVE home page or contact Bob Campbell at the Science Operations & Support Group.
JIVE support scientist job vacancy (posted 09 Sep 2003)
JIVE invites applicants for the post of JIVE support scientist, to be based at Dwingeloo in the Netherlands. Job advert in full.
VLBI and JIVE on BBC News Online (posted 16 Sep 2003)
An article appeared on the BBC News Online website today about high-speed data transfer across the internet, with specific reference to eVLBI, the EVN, JIVE and Dante. Read the article in full.
Summer student 2003 BBQ photos (posted 09 Sep 2003)
The summer student BBQ was held this year on 15 Aug. Photos of the festivities have just been made available.
JENAM 2003 (posted 13 Aug 2003)
This year's Joint European National Astronomy Meeting is being held in Budapest during 25-30 August. A highlight of this year's meeting is a mini-symposium entitled "Radio Astronomy at 70: from Karl Jansky to microjansky". More details can be found at the JENAM 2003 website.
New web pages (posted 10 Aug 2003)
This site has recently undergone a major overhaul which has seen a great improvement in both the structure and content of these pages. The visual appearance has also (we hope) been greatly improved. We believe that these pages display correctly in all the major browsers and has been tested in Netscape 4, Mozilla Firebird, Internet Explorer (5 and 6) and Opera (7). These pages are now fully style-sheet compliant and this means that JavaScript must be enabled for these pages to display correctly in Netscape 4!
JIVE webmaster (jive{at}jive.nl)