Energy spectra of non-pulsating low mass X-ray binaries |
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Authors: | Masaru Matsuoka Kazuhisa Mitsuda |
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Institution: | Institute of Space and Astronomical Science, Komaba, Meguro-ku, Tokyo 153, Japan |
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Abstract: | Detailed analyses of data obtained with gas scintillation proportional counter on Tenma huave been done for four low mass X-ray binaries (LMXB's); that is, Sco X-1, 4U1608-52, GX 349+2, and GX 5-1. This paper presents a new scenario concerning the spectra of LMXB's based on the observational fact from Tenma. The energy spectra of these sources can be expressed by a sum of two spectral components; that is, a hard component with a blackbody of temperature, kT ? 2 keV and soft component with a multi-color blackbody of maximum temperature kT ? 1.4 keV which is expected from the optically thick accretion disk. |
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