Evidence of a largely extended X-ray emission around M82

Details Evidence of a largely extended X-ray emission around M82 Evidence of a largely extended X-ray emission around M82

Oct 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990pasj...42l..75t&link_type=abstract

Astronomical Society of Japan, Publications (ISSN 0004-6264), vol. 42, no. 5, 1990, p. L75-L82.

Astronomy and Astrophysics

Astronomy

16

Halos, Irregular Galaxies, Starburst Galaxies, X Ray Sources, Disk Galaxies, Galactic Structure, H Ii Regions, Intergalactic Media, Japanese Spacecraft

Scientific paper

Evidence of a 100 kpc-scale X-ray halo around the starburst galaxy M82 has been obtained by Ginga observations. The halo extends northward from the nucleus with 2-10 keV luminosity of about 4 x 10 to the 39th erg/sec. Source contaminations have been shown to be very unlikely as the origin of the halo. The temperature is poorly constrained to be 1-11 keV, and the mass of the hot gas would be about 10 to the 8th solar masses. Though this large-scale halo could be a result of mass outflow associated with the starburst, it is puzzling how such a hot, large halo can be confined around the galaxy.

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