The FIRST-VLA Survey

The First 5000 Square Degrees
  • R. Becker
Conference paper
Part of the Astrophysics and Space Science Library book series (ASSL, volume 230)


The VLA FIRST survey now encompasses 5000 sq. deg., mostly in the north Galactic Cap. The First survey generates images of the sky at 1400 MHz with a sensitivity to point sources down to 1 mJy with positions accurate to 1 arcsec (90% confidence). The survey finds approximately 85 discrete sources per sq. degree. Detailed information about the FIRST survey can be obtained at At the level of the POSS 1, 15% of FIRST sources have optical counterparts. While these are primarily galaxies, there are significant numbers of quasars and stars detected in the survey. This presentation will highlight some of the research being pursued by the FIRST science team.


Point Source Science Team Discrete Source Optical Counterpart Level Ofthe 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Copyright information

© Springer Science+Business Media Dordrecht 1998

Authors and Affiliations

  • R. Becker
    • 1
  1. 1.University of California-Davis, and IGPP/LLNLUSA

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