VLA SWIRE Deep Field 90-cm Source Catalog Virtual Observatory Resource

Authors
  1. Owen et al.
  2. Published by
    NASA/GSFC HEASARC
Abstract
      This table contains some of the results from the deepest radio continuum surveys to date at a radio wavelength of >~ 1m. The observations were taken with the VLA at 324.5 MHz covering a region of the SWIRE Spitzer Legacy survey, centered at RA and Dec of 10:46:00, +59:01:00 (J2000). The data reduction and analysis are described in the reference paper and a catalog of the sources detected above 5 sigma is presented herein. The authors also discuss the observed angular size distribution for the sample in their paper, and, using their deeper 20-cm survey of the same field (Owen and Morrison 2008, AJ, 136, 1889), they calculate spectral indices for sources detected in both surveys. They report log N-log S counts at 90 cm which show a flattening below 5 mJy. Given the median redshift of the population, z ~ 1, the spectral flattening and the flattening of the log N-log S counts occur at radio luminosities normally associated with AGN rather than with galaxies dominated by star formation. Observations were made of a single pointing center position (given above), with the VLA in A and C configurations for a total of almost 85 hours on-source between 2006 February and 2007 January. However, due to the ongoing EVLA upgrade, only 22 working antennae were typically avaliable in A and 18 in C. Thus, the total integration time was equivalent to ~ 63 hours in A and even less in C, with correspondingly less u-v coverage. This table was created by the HEASARC in September 2010 based on CDS catalog J/AJ/137/4846/ file table2.dat. This is a service provided by NASA HEASARC .
    
Keywords
  1. Survey Source
Bibliographic source
2009AJ....137.4846O
See also HTML
https://heasarc.gsfc.nasa.gov/W3Browse/all/vlasdf90cm.html
IVOA Identifier IVOID
ivo://nasa.heasarc/vlasdf90cm

Access

IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
https://heasarc.gsfc.nasa.gov/xamin/vo/cone?showoffsets&table=vlasdf90cm&
IVOA Table Access TAP
https://heasarc.gsfc.nasa.gov/xamin/vo/tap
Run SQL-like queries with TAP-enabled clients (e.g., TOPCAT).
Web browser access HTML
https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/w3query.pl?tablehead=name=heasarc_vlasdf90cm&Action=More+Options&Action=Parameter+Search&ConeAdd=1

History

2024-06-28T00:00:00
Resource record created
2024-06-28

Contact

Name
NASA/GSFC HEASARC help desk
E-Mail
heasarc-vo at athena.gsfc.nasa.gov