Satellite number density profiles of primary galaxies in the 2dFGRS
نویسندگان
چکیده
منابع مشابه
Satellite number density profiles of primary galaxies in the 2 dFGRS
We analyse the projected radial distribution of satellites around bright primary galaxies in the 2dFGRS. We have considered several primary-satellite subsamples to search for dependences of the satellite number density profiles, ρ(rp), on properties of satellites and primaries. We find significant differences of the behaviour of ρ(rp) depending on primary characteristics. In star-forming primar...
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We examine the environment of star-forming galaxies selected in the 2dFGRS. We find that bright star-forming galaxies display a significant deficit of faint neighbours relative to passive galaxies. If a deficit in fainter companions implies a smaller mass halo, data support a scenario predicting star-formation to be suppressed in all systems more massive than 1013M⊙, rather than in clusters only.
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 2005
ISSN: 0035-8711,1365-2966
DOI: 10.1111/j.1365-2966.2004.08518.x