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Neutral hydrogen in the Arecibo Galaxy environment survey volume behind NGC 7332

Minchin, Robert E., Momjian, E., Cortese, Luca, O'Neil, K. L., Henning, P. A. and Davies, Jonathan Ivor 2007. Neutral hydrogen in the Arecibo Galaxy environment survey volume behind NGC 7332. Presented at: 210th Meeting American Astronomical Society Meeting, #81.02, Honolulu, Hawaii, 27-31 May 2007.

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Abstract

The Arecibo L-band Feed Array has been used to map a 5 square degree region out to a velocity of 18,000 km/s, covering a volume (for H(0)=70 km/s/Mpc) of ~8900 cubic Mpc. In the region behind the NGC 7332 group, we find 40 HI sources, of which 15 are previously catalogued and 5 have previous redshift measurements. 25 sources (62.5%) are new detections, we are currently trying to identify optical counterparts for these sources. The HI sources have a median redshift of 12,000 km/s (~170 Mpc) and range in neutral hydrogen content from 8x10(8) to 3x10(10) solar masses. 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.

Item Type: Conference or Workshop Item (Other)
Date Type: Completion
Status: Unpublished
Schools: Physics and Astronomy
Subjects: Q Science > QB Astronomy
Last Modified: 04 Jun 2017 04:17
URI: http://orca.cf.ac.uk/id/eprint/36059

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