Where Are the Nearby Gas-rich Low Surface Brightness Galaxies?

Details Where Are the Nearby Gas-rich Low Surface Brightness Galaxies? Where Are the Nearby Gas-rich Low Surface Brightness Galaxies?

Jul 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997apj...484l..29b&link_type=abstract

Astrophysical Journal Letters v.484, p.L29

Astronomy and Astrophysics

Astronomy

14

Galaxies: Luminosity Function, Mass Function

Scientific paper

The Fisher-Tully (F-T) "10 Mpc Catalog of Late-Type Galaxies" is remarkably complete. Despite the considerable effort that has been spent searching for and cataloging low surface brightness (LSB) galaxies, almost no new H I--rich galaxies have been added to the volume to which the F-T observations were both sensitive [d < 10(MH I/108.2 Msolar)5/12 Mpc] and intended to be complete (d < 10 Mpc). It has not yet been demonstrated by the new surveys that H I--rich LSB galaxies are not properly represented in this catalog of nearby galaxies. Although new optical surveys are discovering heretofore uncataloged galaxies at greater distances than the depth of the F-T catalog, they do not alter the completeness of the F-T catalog for H I--rich LSB objects. Thus, unless the galaxy population of the local volume is atypical, there is at present no evidence for a significant, new population of gas-rich galaxies that has escaped recognition until now.

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