Astronomy and Astrophysics – Astrophysics
Scientific paper
2000-04-14
Astrophys.J.Suppl. 130 (2000) 177-200
Astronomy and Astrophysics
Astrophysics
23 pages, 20 figures, accepted ApJS. For tables 2 and 3 only the first page has been included. ASCII tables are provided separ
Scientific paper
10.1086/317347
The Arecibo Dual-Beam Survey is a "blind" 21 cm search for galaxies covering \~430 deg^2 of sky. We present the data from the detection survey as well as from the follow-up observations to confirm detections and improve positions and flux measurements. We find 265 galaxies, many of which are extremely low surface brightness. Some of these previously uncataloged galaxies lie within the zone of avoidance where they are obscured by the gas and dust in our Galaxy. 81 of these sources are not previously cataloged optically and there are 11 galaxies that have no associated optical counterpart or are only tentatively associated with faint wisps of nebulosity on the Digitized Sky Survey images. We discuss the properties of the survey and in particular we make direct determinations of the completeness and reliability of the sample. The behavior of the completeness and its dependencies is essential for determining the HI mass function. We leave the discussion of the mass function for a later paper, but do note that we find many low surface brightness galaxies and 7 sources with M_HI < 10^8 Msolar.
Rosenberg Jessica L.
Schneider Stephen E.
No associations
LandOfFree
The Arecibo Dual-Beam Survey: Arecibo and VLA 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 Arecibo Dual-Beam Survey: Arecibo and VLA Observations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Arecibo Dual-Beam Survey: Arecibo and VLA Observations will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-544631