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Properties of satellite galaxies in nearby groups

Published online by Cambridge University Press:  12 October 2016

Jaan Vennik*
Affiliation:
Tartu Observatory, 61602 Tõravere, Tartumaa, Estonia email: vennik@to.ee
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Abstract

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We studied the variation of stellar mass and various star-formation characteristics of satellite galaxies in a volume limited sample of nearby groups as a function of their group-centric distance and of their relative line-of-sight velocity in the group rest frame. We found clear radial dependencies, e.g. massive, red and passive satellites being distributed predominantly near the center of composite group. We also found some evidence of velocity modulation of star-forming properties of satellite galaxies near the group virial radius. We conclude that using kinematical data, it should be feasible to separate dynamical classes of bound, in-falling and 'backsplash' satellite galaxies.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2016 

References

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