On the X-ray emission of the low-mass galaxy groups

H. M. Tovmassian; O. Yam; H. Tiersch

doi:10.1086/339769

On the X-ray emission of the low-mass galaxy groups

Astrophysics 2009-11-07 v1

Authors: H. M. Tovmassian , O. Yam , H. Tiersch

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Abstract

It is shown that the low-mass groups obey the $L_{x}\sim\sigma_v^{4}$ law deduced for galaxy clusters. The impression of the more shallow slope of the $L_x-\sigma_{v}$ correlation for groups is created not by enhanced X-ray emission, but by underestimation of the radial velocity dispersion of some groups.

Cite

@article{arxiv.astro-ph/0201332,
  title  = {On the X-ray emission of the low-mass galaxy groups},
  author = {H. M. Tovmassian and O. Yam and H. Tiersch},
  journal= {arXiv preprint arXiv:astro-ph/0201332},
  year   = {2009}
}

Comments

4 pages, 2 figures, accepted in ApJL

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