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Properties of satellite galaxies in nearby groups

  • Jaan Vennik (a1)

Abstract

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.

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References

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Blanton, M. R., Kazin, E., Muna, D., Weaver, B. A., & Price-Whelan, A. 2011,
Mahajan, S., Mamon, G. A., & Raychaudhury, S. 2011, MNRAS, 416, 2882
Tempel, E., Tamm, A., Gramann, M., et al. 2014, A&A, 566, A1
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Properties of satellite galaxies in nearby groups

  • Jaan Vennik (a1)

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