The Arecibo Galaxy Environment Survey Potential for finding Dark Galaxies and Results so far

Details The Arecibo Galaxy Environment Survey Potential for finding Dark Galaxies and Results so far The Arecibo Galaxy Environment Survey Potential for finding Dark Galaxies and Results so far

May 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008iaus..244..112m&link_type=abstract

Dark Galaxies and Lost Baryons, Proceedings of the International Astronomical Union, IAU Symposium, Volume 244, p. 112-119

Astronomy and Astrophysics

Astronomy

Surveys, Galaxies: Distances And Redshifts, Dark Matter, Radio Lines: Galaxies, Clusters: Individual (Abell 1367, Virgo), Galaxies: Individual (Ages J0256+2546, Ages J0300+2554, Ages J1239+1152, Ages J1245+1148, Ages J2257+2253)

Scientific paper

The Arecibo Galaxy Environment Survey is a blind neutral hydrogen survey using the ALFA multibeam receiver at Arecibo Observatory to reach unprecedented sensitivities in a number of selected fields in the local Universe. When completed the survey will cover 200 square degrees out to a distance of at least 270 Mpc. If a population of gas-rich dark galaxies exists, then this survey is in a prime position to uncover that population.
So far 20 square degrees have been covered in the regions of Abell 1367, the Virgo Cluster, the NGC 7332/9 galaxy pair and the isolated galaxy NGC 1156. Over 200 sources have been found, including a number that have no obvious optical counterparts. We discuss here the potential of AGES for uncovering more such objects and the characteristics of the dark sources identified to date.

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