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nvss [2026/09/14 08:59] – dparadisnvss [2026/09/14 09:26] (current) – dparadis
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 ======NRAO VLA D-array Sky Survey (NVSS) ====== ======NRAO VLA D-array Sky Survey (NVSS) ======
  
-The National Radio Astronomy Observatory (NRAO) observed the sky north of declination -40° using the Very Large Array (VLA) (D-array) at the 1.4 GHz frequency. We present the survey in Stockes I parameter, covering 82% of the sky, at an angular resolution of 45". Units of the map are Jy/beam. \\+The National Radio Astronomy Observatory (NRAO) observed the sky north of declination -40° using the Very Large Array (VLA) (D-array) at the 1.4 GHz frequency. We present the total intensity survey, covering 82% of the sky, at an angular resolution of 45". Units of the map are Jy/beam. \\ 
 + 
 +Healpix map made by D. Paradis. The map is in NSIDE=8192 (slighty over-sampled). 
 + 
 +===Reference=== 
 +'The NRAO VLA Sky Survey ' by Condon et al, 1998, AJ, 115, 1693 https://ui.adsabs.harvard.edu/abs/1998AJ....115.1693C 
 + 
 +=== Map === 
 + 
 +@@ENV:CADE_FILES_URL:/documents/Ancillary/NVSS/NVSS_1_8192_partial.fits|NVSS_1_8192_partial.fits@@ (7.95 Go) 
 +<html> 
 +<button class="aladin-desktop-btn" type="button" id="nvss">Aladin</button> 
 +</html> 
 + 
 +<html> 
 +<div class="flex-column w-450 bg-black"> 
 +    <div id="aladin-lite-nvss" class="h-400"></div> 
 +</div> 
 +</html> 
 + 
 +=== HiPS === 
 + 
 +Enter the following URLs in Aladin ("Files" then "Use directly a URL"):\\ 
 +@@ENV:CADE_FILES_URL:/documents/Ancillary/4Aladin/NVSS@@\\ 
 + 
 + 
 +=== Original WCS Data === 
 + 
 +https://www.cv.nrao.edu/nvss/anonftp.shtml 
 + 
 +=== Project website=== 
 + 
 +https://www.cv.nrao.edu/nvss/ 
 + 
 +<html> 
 +<script src="lib/scripts/aladinsamp.js"></script> 
 +<script src="lib/scripts/aladinlite.js"></script> 
 +<script src="lib/scripts/aladinliteutils.js"></script> 
 +<script> 
 +    const aladinDesktopMapsList = [ 
 +        { btnId: 'nvss', endPath: "NVSS/NVSS_1_8192_partial.fits", name: "NVSS" }, 
 +    ]; 
 + 
 +    const aladinLiteMapsList = [ 
 +        { divId: '#aladin-lite-nvss', name: 'NVSS', endPath: 'NVSS', ra: 0, dec: 0 }, 
 +    ]; 
 + 
 +    initAladinDesktopSenders(aladinDesktopMapsList) 
 +    setAladinLiteMap(aladinLiteMapsList) 
 +</script> 
 +</html> 
 + 
  
-Healpix map made by D. Paradis.