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Tracing the gas with a stacking experiment with the WSRT
© ASTRON One way in which the upcoming large radio surveys (line and continuum) will be used is by stacking the signal of as many as possible galaxies. This will increase the sensitivity and will allow...
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Go-ahead for APERTIF-10 approved!
© ASTRON The ASTRON Board met in The Hague last Friday and one of the proposals to consider was the further roll-out of the APERTIF Phased Array Feed (PAF) system on the Westerbork Synthesis Radio...
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New Quasars in the Near-Infrared
© Natasha Maddox (ASTRON) Determining which points of light in the sky are stars in the Milky Way and which are quasars at cosmological distances is a difficult task, as they appear to be identical in...
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The Mission of the Digital and Embedded Signal Processing group (DESP)
© ASTRON In September of last year, the ASTRON DESP (Digital and Embedded Signal Processing) group started an expedition. We went on a journey towards quality, transparency and enhanced employee...
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Research Collaboration between NOVA and TATA Steel
© Ronald Halfwerk Steelmaker Tata Steel and the Dutch Research School for Astronomy (NOVA), signed a research cooperation agreement at the Hanover Messe in the presence of Minister Kamp of Economic...
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Leiden (radio) astronomy students field trip
© don't worry On May 29 a group of Leiden students came to Drenthe to see all the interesting stuff that is happening at our facilities. About half of them were from the 2015 radio astronomy class...
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ASTRON/JIVE Summer Student Pancake Welcome Party
© ASTRON The ASTRON/JIVE summer student program kicked off this week with the annual Pancake Welcome Party. The summer student program has a great international group again this year with eight...
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Aurora Display 1989 revisited
© Rik ter Horst A long time ago, in the evening of March 13 1989 when going for a run, I suddenly saw strange moving colors in the clear sky and immediately I knew I had to get my camera and shoot some...
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The End of an Era, the Beginning of the Next
© astron On Friday June 24, 2015, exactly 45 years, on the day, after Queen Juliana opened the Westerbork Synthesis Radio Telescope under the guidance of Jan Oort, the receivers, correlator, backend...
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More deep HI observations with KAT-7: The nearest starburst galaxy NGC 253
© University of Cape Town The seven-dish KAT-7 array was built as an engineering testbed for the 64-dish Karoo Array Telescope, known as MeerKAT, which is the South African precursor of the Square...
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Afscheid Henny van Haarst
© Roelie Today we say goodbye to Henny van Haarst, who is retiring after having worked for ASTRON for 15 years. Technically, she was employed by a series of cleaning contractors (Hazenberg, Asito, ISS,...
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In Memoriam Cees Boon (1943-2015)
© ASTRON Following an illness, our retired employee Cees Boon passed away last Friday, June 19th 2015. Cees worked with us since May 12th, 1997. At first through Randstad and after that as employee of...
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How do you build a galaxy cluster?
© Kelley Hess Galaxy clusters are the largest gravitationally bound structures in the Universe. Even after 13.8 billion years, they are still growing by accreting galaxies from their surroundings. The...
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POLFAR subrack assembly and testing
© Astron At beginning of June we started the LOFAR subrack assembly, flashing and testing in Westerbork. This time, we had to program all Remote Station Processing boards (RSP:78) and Transient Buffer...
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Today's colloquium: Taking the pulse of the gamma-ray sky
© NASA/DOE/Fermi LAT Collaboration Pulsars, rotating magnetized neutron stars born in supernovae, are fascinating objects and their study finds applications in a wide range of physics and astrophysics....
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Hunting for the black hole: workshop on data processing and simulations for...
© JIVE, IMAPP, MIT In the week of June 8 a group of mm-VLBI experts got together for a workshop on data processing and simulations for mm-VLBI, in the Snellius building of the Lorentz Center in Leiden,...
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LOFAR first DIRECT lightning strike in LBA array
© Astron On the 5th of June, after a thunderstorm, we discovered a tripped earth leakage circuit at remote LOFAR station RS305. Superficially, everything seemed to work normally after powering up, but...
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Antenna measurements at ASTRON by students from University of Twente
© ASTRON Electrical engineering students from University of Twente have the opportunity to follow a master course 'Smart antennas & propagation'. This course is given by Mark Bentum (ASTRON &...
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Dome Seminar on Quality in Electronic Design and Manufacturing
© ASTRON On June 16th and 17th about 20 engineers in electronic design from industry and from ASTRON came together at the Hanze Institute of Technology in Assen to discuss quality in electronic design...
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MFAA FrontEnD meeting
© Steve Torchinsky During the last week of June 2015, the MFAA FrontEnD (FED) work package team joined efforts on the beautiful, historical site of de Station de radioastronomie de Nancay, where we...
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