A Prominent Accretion Disk in the Low-Hard State of the Black Hole Candidate SWIFT J1753.5-0127

作者: G. Miniutti , J. M. Miller , J. Homan

DOI: 10.1086/510015

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摘要: We report on simultaneous XMM-Newton and RXTE observations of the stellar mass black hole candidate SWIFT J1753.5-0127. The source was observed in low-hard state, during decline a hard outburst. inner accretion disk is commonly assumed to be radially truncated it has been suggested that this property may tied production steady, compact jets. Fits X-ray spectra J1753.5-0127 with number simple models clearly reveal cool (kT 0.2 keV) disk. component required at more than 8 σ level confidence. Although estimates radii based continuum spectroscopy are subject considerable uncertainty, fits suggest or close innermost stable circular orbit. Recently, an observation GX 339-4 revealed extending orbit LX/LEdd 0.05; our results from extend finding down 0.003(d/8.5 kpc)2(M/10 M☉). discuss within context low-luminosity flow disk-jet connections.

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