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Date and Time of the Query: 2019-05-20 T00:31:31 PDT
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For refcode 1994ApJS...93..425M:
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Copyright by American Astronomical Society. Reproduced by permission
1994ApJS...93..425M GALAXY PROPERTIES IN DIFFERENT ENVIRONMENTS. I. THE SAMPLE MARCIO A. G. MAIA Departamento de Astronomia, Observatorio Nacional, Rua Gal. Jos& Cristino 77, Rio de Janeiro 20921, RJ, Brazil maia@on.br AND MIRIANI G. PASTORIZA, EDUARDO BICA, AND HORACIO DOTTORI Departamento de Astronomia, Instituto de Fisica, Universidade Federal do Rio Grande do Sul, C.P. 15051, Porto Alegre 91501-970, RS, Brazil Received 1993 September 1; accepted 1993 December 17 ABSTRACT This paper presents two galaxy samples, respectively in a high and in a low local density environments, that were generated from the SSRS catalog using objective criteria. A preliminary comparison of physical properties in these two samples reveals that galaxies in high-density environments tend to be under a higher starbursting activity, have a deficiency of the neutral hydrogen content, present a higher fractional Seyfert population and a higher fraction of barred spirals as well. The present samples are intended to be used in future spectroscopic observations for more detailed investigation. Subject headings: galaxies: clustering - galaxies: structure
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