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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/1404
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dc.contributor.authorDwarakanath, K.S.-
dc.contributor.authorOwen, F.N.-
dc.contributor.authorVan Gorkom, J.H.-
dc.date.accessioned2006-07-07T06:09:15Z-
dc.date.available2006-07-07T06:09:15Z-
dc.date.issued1995-03-
dc.identifier.citationAstrophysical Journal Letters, 1995, Vol.442, p1-4en
dc.identifier.issn0004-637X-
dc.identifier.issn1538-4357 (online)-
dc.identifier.urihttp://hdl.handle.net/2289/1404-
dc.description.abstractWe present new observations of the H I absorption system seen toward the core of the radio galaxy Hydra A, which is the central galaxy in a cooling flow cluster Abell 780. Our improved spatial (approximately 2 sec) and velocity (approximately 1.4 km/s) resolutions indicate that the absorption arises very close to the nucleus, probably in a gas disk located in the central regions of the galaxy. There is no indication that any of the absorption arises in the cooling flow. The H I absorption is seen only toward the core and is within approximately 100 km/s of the systemic velocity. The absorption covers a velocity range approximately 100 km/s. It can be decomposed into six Gaussian components with widths approximately 10-20 km/s and optical depths approximately 0.1-0.5. No narrow line features (approximately 1 km/s) were detected in Hydra A to a 3 sigma optical depth limit of 0.06.en
dc.format.extent638504 bytes-
dc.format.mimetypeapplication/pdf-
dc.language.isoenen
dc.publisherThe University of Chicago Press for the American Astronomical Societyen
dc.relation.urihttp://adsabs.harvard.edu/cgi-bin/bib_query?1995ApJ...442L...1Den
dc.rights(1995) by the American Astronomical Society. Scanned images provided by the NASA ADS Data System.en
dc.subjectABSORPTION SPECTRAen
dc.subjectCOOLING FLOWS (ASTROPHYSICS)en
dc.subjectDISK GALAXIESen
dc.subjectH I REGIONSen
dc.subjectRADIO GALAXIESen
dc.subjectGALACTIC CLUSTERSen
dc.subjectSTELLAR SPECTRAen
dc.subjectVELOCITY DISTRIBUTIONen
dc.titleDetection of an H I disk in Hydra A?en
dc.typeArticleen
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