TitleChandra Observations of Ultraluminous Infrared Galaxies: Extended Hot Gaseous Halos in Merging Galaxies
AuthorsHuo, Z. Y.; Xia, X. Y.; Xue, S. J.; Mao, S.; Deng, Z. G.
AbstractWe study the properties of hot gaseous halos in 10 nearby ultraluminous IRAS galaxies observed with the ACIS instrument on board Chandra. For all sample galaxies, diffuse soft X-ray emissions are found within ~10 kpc of the central region; their spectra are well fitted by a MEKAL model plus emission lines from α-elements and other ions. The temperature of the hot gas is about 0.7 keV and metallicity is about 1 Z
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