Clik here to view.
A Dwingeloo background for Stellarium
© CC-BY-4.0 Tammo Jan DijkemaStellarium is a great computer planetarium program, also for non-astromers. CAMRAS uses it in the Dwingeloo telescope to show where the telescope is pointing....
View ArticleClik here to view.
Archaeology of active galaxies across the electromagnetic spectrum
© ASTRON, Oxford University Press, WIYN / William Keel / Anna Manning The timescales over which galaxies form and evolve are outside the reach of human life. Thus, astronomers need to use indirect...
View ArticleClik here to view.
Software development harmonization and improvement
© ASTRON 2017 We have three main software development groups within ASTRON: Research&Development, Radio Observatory and Science Data Centre. Earlier this year an initiative was started by the...
View ArticleClik here to view.
Microserver T4240 Standalone version.
© (c)2017 S.Damstra ASTRON Microserver T4240 Standalone version. The standalone microserver with a Freescale T4240 multicore processor arrived this week at ASTRON and is now up and running. The T4240...
View ArticleClik here to view.
Detections of low-frequency radio recombination lines with the EDA, an...
© Emma Alexander, Jess Broderick Radio recombination lines (RRLs) arise from transitions between highly-excited levels of atoms in the interstellar medium (ISM). Low-frequency (<1 GHz) RRLs can be...
View ArticleClik here to view.
Looking for broad HI absorption with Apertif
© astron While we are waiting to start commissioning Apertif using the full field of view (i.e. using 39 all beams), we can test other important characteristics of the system to see whether they match...
View ArticleClik here to view.
The Groningen expedition to the Great American Eclipse (and Jacqueline van...
© TAO Everyone who has ever seen a total solar eclipse will agree that it is one of the most spectacular events you will ever witness in your entire life. So when the idea came up to organise a...
View ArticleClik here to view.
Central Works Council visit ASTRON/JIVE.
© ASTRON OR Maybe you have noticed that a large number of people in the picture above are walking around at ASTRON/JIVE today. These 17 people are members of the NWO Central Works Council (NWO-COR)....
View ArticleClik here to view.
Today's Colloquium: Radioastrometry in post-Gaia epoch
© Leonid Petrov It is not an exaggeration to say that the date September 15, 2016 split astrometry into two epochs: before and after Gaia. I will provide the overview of VLBI absolute astrometry...
View ArticleClik here to view.
The Lockman Hole as seen by Apertif
© ASTRON The commissioning of Apertif is progressing steadily and observations are now being done on a regular basis. The purpose of these observations is to test and validate the system...
View ArticleClik here to view.
In Memoriam: Nan Rendong (1945-2017)
© NAOC On 15 September 2017, our good friend Nan Rendong died while in the US for a final treatment for his long cancer. Nan came to ASTRON in 1983 as an exchange 'student' to study radio astronomical...
View ArticleClik here to view.
Looking for broad HI absorption with Apertif
© astron While we are waiting to start commissioning Apertif using the full field of view (i.e. using 39 all beams), we can test other important characteristics of the system to see whether they match...
View ArticleClik here to view.
Dying radio galaxies in the LOFAR sky
© ASTRON Understanding the life-cycle of radio loud AGN has recently gained a new broader relevance as it can help quantifying their feedback on the surrounding medium and on the overall galaxy...
View ArticleClik here to view.
Today's Colloquium: Multiwavelength Studies of Giant Pulses from the Crab Pulsar
© N. Lewandowska Numerous studies of pulsars have been carried out, especially at radio wavelengths, since their detection 50 years ago. The Crab pulsar was one of the first pulsars discovered....
View ArticleClik here to view.
Today's Colloquium: Radioastrometry in post-Gaia epoch
© Leonid Petrov It is not an exaggeration to say that the date September 15, 2016 split astrometry into two epochs: before and after Gaia. I will provide the overview of VLBI absolute astrometry...
View ArticleClik here to view.
The first RadioLife student leaves the nest!
© ASTRON Filippo Maccagni, the first student appointed under the ERC RadioLife grant to study the effect of the gas in the life of radio galaxies, has successfully defended his thesis at the University...
View ArticleClik here to view.
Lofar Long-Baseline Working Group Busy Week, 11-15 September
© LBWG The Lofar Long-Baseline Working Group met at ASTRON from 11-15 September for a Busy Week. We have been developing algorithms and pipelines for the reduction of HBA international-baseline data,...
View ArticleClik here to view.
RU Groningen Honours Master students at ASTRON
© Peter Maat and Roel Witvers This summer, four students from the University of Groningen spent three weeks at ASTRON, doing their summer school project as part of their RUG Honours Master programme....
View ArticleClik here to view.
Open Monumentendag at the Dwingeloo Radiotelescope
© Harm-Jan Stiepel / CAMRASSince 2009, the Dwingeloo Radiotelescope has been a national monument. That means that every year, the telescope is open at the national Open Monumentendag (which spans a...
View ArticleClik here to view.
Today's Colloquium: Wide-field VLBI observations of the COSMOS field
© Noelia Herrera Quantifying the fraction of AGN in the faint radio population is fundamental for studying galaxy evolution. A relatively easy and direct way to determine which galaxies do have a...
View Article