ASCA Observations of Three Shakhbazyan's Compact Groups of Galaxies

Details ASCA Observations of Three Shakhbazyan's Compact Groups of Galaxies ASCA Observations of Three Shakhbazyan's Compact Groups of Galaxies

2000-07-07

arxiv.org/abs/astro-ph/0007083v1

PASJ 52, 769-774 (2000)

Astronomy and Astrophysics

Astrophysics

text 8 pages, 4 figures, submitted to PASJ

Scientific paper

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.

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