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A preliminary optical study of the intergalactic H I cloud in Virgo

Djorgovski, S. (1990) A preliminary optical study of the intergalactic H I cloud in Virgo. Astronomical Journal, 99 (1). pp. 31-36. ISSN 0004-6256.

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A possible optical counterpart of the intergalactic H I cloud in the Virgo Cluster, discovered by Giovanelli and Haynes, is reported. It is a blue, 17 mag, irregular galaxy, and it is located near the peak of the H I emission. No other optical objects which can be obviously associated with the. cloud are found m the area from which the H I emission was detected, and no extended, low surface brightness counterpart is seen in these data. If the irregular galaxy is really associated with the H I cloud, the overall properties of the system would be similar to those of a number of other known gas-rich dwarf galaxies. However, the system has an unusually large hydrogen to light ratio, and a large spatial extent, and it could be dynamically young. Optical spectroscopy is needed in order to establish whether the proposed optical counterpart is indeed correct, and if so, to determine the stage of its chemical evolution.

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Djorgovski, S.0000-0002-0603-3087
Additional Information:© 1990 American Astronomical Society. Provided by the NASA Astrophysics Data System. Received 21 September 1989. This work is based in part on a photographic plate obtained at the Palomar Observatory 48 in. Oschin Telescope for the Second Palomar Observatory Sky Survey, which was funded by the Eastman Kodak Company, the National Geographic Society, the Alfred P. Sloan Foundation, the Samuel Oschin Foundation, the National Science Foundation Grants Nos. AST 84-08225 and AST 87-19465, and the National Aeronautics and Space Administration grants NGL 05002140 and NAGW 1710. The author would like to thank Joe Fulton of Jet Propulsion Laboratory for scanning the plate, and to Dr. Martha Haynes for providing a preprint of the GH paper. This work was supported in part by the Alfred P. Sloan Foundation and by California Institute of Technology.
Funding AgencyGrant Number
Eastman Kodak CompanyUNSPECIFIED
National Geographic SocietyUNSPECIFIED
Alfred P. Sloan FoundationUNSPECIFIED
Samuel Oschin FoundationUNSPECIFIED
NSFAST 84-08225
NSFAST 87-19465
NASANGL 05002140
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ID Code:97892
Deposited By: Tony Diaz
Deposited On:15 Aug 2019 17:41
Last Modified:03 Oct 2019 21:36

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