VLASS
(Very Large Array Sky Survey)
(ongoing all-sky radio survey)
VLASS (for Very Large Array Sky Survey)
is a radio astronomical survey by the Very Large Array (VLA), begun
in 2017 with plans for a seven-year survey of 80% of the sky,
expecting to image 5 million radio sources.
This survey has the advantages of VLA upgrades installed
since the VLA's previous all-sky survey, the 1990s NRAO VLA Sky Survey (NVSS).
The new survey's angular resolution is 2.5 arcsecond, and
the frequency range is 2 to 4 GHz, and
includes polarimetry.
The sky will be observed three times at 32 month intervals.
Data has been released for the first two rounds
of observations and the third is in progress.
(survey,radio)
Further reading:
https://science.nrao.edu/vlass/
https://www.cadc-ccda.hia-iha.nrc-cnrc.gc.ca/en/vlass/
https://conf1.ncra.tifr.res.in/event/1/contributions/207/attachments/30/37/amy_kimball.pdf
https://arxiv.org/abs/1312.4602
https://ui.adsabs.harvard.edu/abs/2020PASP..132c5001L/abstract
https://ui.adsabs.harvard.edu/abs/2020RNAAS...4..175G/abstract
https://ui.adsabs.harvard.edu/abs/2021ApJS..255...30G/abstract
WaveL | Freq | Photon Energy | | |
75mm | 4GHz | 17μeV | begin | VLASS |
150mm | 2GHz | 8.3μeV | end | VLASS |
|
Prefix | Example | | |
VLASS | VLASS J121001+495647 | | |
VT | VT 1210+4956 | VLASS transient | |
|
Referenced by page:
NRAO VLA Sky Survey (NVSS)
Index