Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...376..424s&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 376, Aug. 1, 1991, p. 424-429. Research supported by U.S.-Australia Coopera
Astronomy and Astrophysics
Astrophysics
15
Cooling Flows (Astrophysics), Galactic Clusters, X Ray Sources, Heao 1, Intergalactic Media, Radio Galaxies
Scientific paper
The identification of the bright, hard X-ray source 4U 0009-33 = 3A 2356-341 = 1H 2355-350 is presently confirmed on the basis of Exosat CMA detector measurements of position and spatial extent. On the basis of these X-ray observations, a strong accretion flow is deduced; the luminosity and core radius imply a central density of at least 0.008/cu cm. The central cooling time is not greater than 5 billion yr, and the mass accretion rate is about 320 solar masses/yr.
Bradt Hale V.
Remillard Ronald A.
Schwartz Daniel A.
Tuohy Ian R.
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