An HI Selected Sample of Galaxies: The HI Mass Function and the Surface Brightness Distribution
نویسندگان
چکیده
منابع مشابه
Finding the Bivariate Brightness Distribution of Galaxies from an HI Selected Sample
A method is presented that will enable the bivariate luminosity/surface brightness distribution of galaxies to be determined from a relatively small HI selected sample. This will be taken from the HI Parkes All Sky Survey (HIPASS). The advantages of using an HI sample in order to avoid the selection effects that are present at optical wavelengths are discussed. We are developing an algorithm to...
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A sample of 69 galaxies with radial velocities less than 2500 km s was selected from the Hi Parkes All Sky Survey (HiPASS) and imaged in broad band B and R and narrow band Hα to deduce details about star formation in nearby disk galaxies while avoiding surface brightness selection effects. The sample is dominated by late-type, dwarf disks (mostly Sc and Sm galaxies) with exponential disk scale ...
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I study the VLA HI survey of HII galaxies by Taylor et al. (1995, ApJS, 99, 427; 1996, ApJS, 102, 189) and the VLA HI survey of low surface brightness (LSB) dwarf galaxies by Taylor et al. (1996, in press) to investigate the role of galaxy interactions in triggering the bursts of massive star formation seen in HII galaxies. Comparing the two surveys, I find that HII galaxies have companions mor...
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We perform an analysis of the spatial clustering properties of HI selected galaxies from the HI Parkes All Sky Survey (HIPASS) using the formalism of the halo occupation distribution (HOD). The resulting parameter constraints show that the fraction of satellite galaxies (i.e. galaxies which are not the central member of their host dark matter halo) among HIPASS galaxies is < 20%, and that satel...
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ژورنال
عنوان ژورنال: Publications of the Astronomical Society of Australia
سال: 1997
ISSN: 1323-3580,1448-6083
DOI: 10.1071/as97126b