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Date and Time of the Query: 2019-05-20 T03:21:13 PDT
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For refcode 1998AJ....116.1690C:
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1998AJ....116.1690C DETECTION OF H I ASSOCIATED WITH THE SCULPTOR DWARF SPHEROIDAL GALAXY CLAUDE CARIGNAN Dipartement de Physique, Universiti de Montrial, C.P. 6128, Succursale Centre Ville, Montrial, QC H3C 3J7, Canada; and Observatoire du Mont Migantic; carignan@astro.umontreal.ca SYLVIE BEAULIEU Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, England, UK; beaulieu@ast.cam.ac.uk STEPHANIE COTE Dominion Astrophysical Observatory, Herzberg Institute of Astrophysics, National Research Council of Canada, 5071 West Saanich Road, Victoria, BC V8X 4M6, Canada; stephanie.cote@hia.nrc.ca SERGE DEMERS Departement de Physique, Universite de Montreal, C.P. 6128, Succursale Centre Ville, Montreal, QC H3C 3J7, Canada; and Observatoire du Mont Megantic; demers@astro.umontreal.ca AND MARIO MATEO Department of Astronomy, University of Michigan, 821 Dennison Building, Ann Arbor, MI 48109-1090; mateo@ra.astro.lsa.umich.edu Received 1998 February 17; revised 1998 June 11 ABSTRACT Neutral hydrogen (H I) has been detected in the Local Group dwarf spheroidal galaxy Sculptor with the 64 m Parkes single-dish telescope and mapped with the Australia Telescope synthesis array. Most of the detected H I is in two clouds ~15'-20' away from the optical center. The gas is observed at the same systemic velocity as the stars, but at >=125 km s^-1^ away from the Magellanic Stream components in that region. A lower limit to the H I mass of 3.0 x 10^4^ M_sun_ is derived from the synthesis observation for an (M_H I_/L_B_) ~ 0.02. This amount of H I is compatible with mass loss expected from normal giants, even if only 10% of the gas is retained by the galaxy in its neutral form. Key words: galaxies: dwarf-galaxies: individual (Sculptor)-ISM: H I-Local Group-techniques: interferometric
Retrieve 19 NED objects in this reference.
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