ASCA Observations of Three Shakhbazyan's Compact Groups of Galaxies
Astrophysics
2015-06-24 v1
Abstract
X-ray observations of three Shakhbazyan's Compact Groups of Galaxies, SCGG 202, SCGG 205, and SCGG 223, are presented for the first time. Extended X-ray emission was detected from SCGG 202 and SCGG 223 with 0.5-2 keV luminosity of 1E42 erg/s and 3E42 erg/s (for H_0 = 75 km/s/Mpc), respectively, while no significant emission was detected from SCGG 205 with an upper limit of 0.7E42 erg/s. The X-ray spectra of SCGG 202 and SCGG 223 can be described with thin-thermal plasma emission with temperature about 1 keV. X-ray properties of SCGG 202 and SCGG 223 are in good agreement with those of other known groups of galaxies, proving the physical nature of their grouping.
Cite
@article{arxiv.astro-ph/0007083,
title = {ASCA Observations of Three Shakhbazyan's Compact Groups of Galaxies},
author = {Isao Takahashi and Yasushi Fukazawa and Keiichi Kodaira and Kazuo Makishima and Kazuhiro Nakazawa and Haiguang Xu},
journal= {arXiv preprint arXiv:astro-ph/0007083},
year = {2015}
}
Comments
text 8 pages, 4 figures, submitted to PASJ