The ALFA Zone of Avoidance Survey: Results from the Precursor Observations

Details The ALFA Zone of Avoidance Survey: Results from the Precursor Observations The ALFA Zone of Avoidance Survey: Results from the Precursor Observations

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...209.9504s&link_type=abstract

2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #95.04; Bulletin of the American Astronomical Society, V

Astronomy and Astrophysics

Astronomy

Scientific paper

We present new extragalactic 21 cm observations in the Galactic Plane region. These observations are a precursor to a large scale, extragalactic, zone of avoidance survey with the Arecibo L-band Feed Array (ALFA). The data for this survey are being taken concurrently with a Galactic survey and a pulsar survey. Full survey observations, which will begin in 2007, will reveal local large scale structure in a part of the extragalactic sky that is relatively unexplored due to the obscuration of optical light by dust in our Galaxy. One of these surveys will have an integration time of 268 seconds per point in the inner Galaxy and 134 seconds in the outer Galaxy, covering |b|<5 degrees, while the other will have an integration time of only 5 seconds per point, covering |b|<10 degrees with an rms of roughly 6 mJy. No other extragalactic ALFA survey will cover these latitudes. Precursor observations have been taken using the latter observational setup on two patches of sky totaling 140 square degrees (one near l=40 degrees, and the other near l=192 degrees). We have measured HI parameters for detections from these observations, and cross-correlated with the NASA/IPAC Extragalactic Database. A significant fraction of the objects are new, having never been detected at any wavelength. For those galaxies that have been previously detected, the majority have no previously known redshift, and and no previous HI detection. This research was performed while C.M.S. held a National Research Council Research Associateship Award at the Naval Research Laboratory. Basic research in astronomy at the Naval Research Laboratory is funded by the Office of Naval Research. P.A.H. acknowledges support from NSF grant AST-0506676. The Arecibo Observatory is part of the National Astronomy and Ionosphere Center, which is operated by Cornell University under a cooperative agreement with the National Science Foundation.

Affiliated with

Also associated with

No associations

Rating

The ALFA Zone of Avoidance Survey: Results from the Precursor Observations does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The ALFA Zone of Avoidance Survey: Results from the Precursor Observations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The ALFA Zone of Avoidance Survey: Results from the Precursor Observations will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1159049