Westerbork Synthesis Radio Telescope - WikiVisually
The first two radio images made with the upgraded telescope that demonstrate this new `wide-angle' capability are shown here. The first image shows the dwarf galaxy Leo T. The image is colour-coded and shows the gas (in blue) in this galaxy together with many distant radio galaxies in the background shown in orange. For comparison, the field of view of the previous Westerbork system and the size of the full moon are also indicated. "Leo T is a rare object and one of the smallest galaxies known. It is one of the big puzzles in astronomy how galaxies as small as Leo T can form and whether even smaller objects should exist. Apertif will be used to search the sky to see how many very small galaxies exist to help answer this question", says Prof. Tom Oosterloo from ASTRON, who is one of the principal investigators of the project.
Westerbork Synthesis Radio Telescope (WSRT…
We present a radio continuum survey at 1400 and 350 MHz of a region of 2degrees x 2degrees centered on the Cygnus OB2 association (d = 1.7 kpc), using the Westerbork Synthesis Radio Telescope (WSRT) with angular resolutions of, respectively, 13" and 55". The resulting 5 sigma flux-density limits of, respectively, similar to2 mJy and similar to10-15 mJy are a significant improvement over previous surveys. We detected 210 discrete sources with sizes less than 1.9theta(beam) (beam size), 98 of which at both frequencies. We also detected 28 resolved sources (sizes > 1.9theta(beam)) still having well-defined peak intensities. The observed spectral index alpha(350)(1400) distribution and source count strongly suggest an excess of sources of Galactic origin in the direction of Cyg OB2.
Next: Up: Previous:
In the late 1970s, the Westerbork Synthesis Radio Telescope (WSRT) inWesterbork, Holland and the Very Large Array (VLA) in New Mexicobegan producing high quality images of the radio sky.
WSRT - Westerbork Synthesis Radio Telescope | …
An important milestone for the Westerbork Synthesis Radio Telescope: the first images have been made using a revolutionary new type of receiver, called Apertif. Because of these new receivers, much larger areas of sky can be mapped in a single observation. The ‘old' Westerbork telescope could only map an area of sky comparable in size to that of the full moon in a single observation. The new Westerbork / Apertif system can image a region of sky 40 times larger, which is a great step forward. The new Apertif receivers, developed by ASTRON in Dwingeloo in cooperation with the Kapteyn Institute (University of Groningen), were installed on the Westerbork telescope over the last year and will be fully operational in the course of 2017.
How is Westerbork Synthesis Radio Telescope abbreviated
The Westerbork Synthesis Radio Telescope (WSRT) is operated by ASTRON, the Netherlands Foundation for Research in Astronomy, and is financed by NWO, the Netherlands Organisation for Scientific Research.
WSRT stands for Westerbork Synthesis Radio Telescope
The second radio image shows the active galaxy NGC 315 with its extended jets and clouds of relativistic electrons that produce the radio waves captured by the Apertif receivers. "This image would have required almost 40 separate observations with the ‘old' Westerbork telescope while the new Apertif receivers can map this large galaxy in a single observation, demonstrating its `wide-angle' capability. Many such intriguing galaxies will be charted in detail with Apertif", according to Prof. Marc Verheijen of the Kapteyn Institute of the University of Groningen who is the other principal investigator of the project.
Murchison Radio-astronomy Observatory - Wikipedia
It is also thestandard for ground-based radio and optical observations, in use by suchorganizations as the National Radio Astronomy Observatory (NRAO), National Optical Astronomy Observatories (NOAO), and the EuropeanSouthern Observatory (ESO).