SIMBAD references

2010ApJ...709..358R - Astrophys. J., 709, 358-368 (2010/January-3)

Suzaku broadband spectroscopy of Swift J1753.5-0127 in the low-hard state.


Abstract (from CDS):

We present Suzaku observations of the Galactic black hole candidate Swift J1753.5-0127 in the low-hard state (LHS). The broadband coverage of Suzaku enables us to detect the source over the energy range 0.6-250 keV. The broadband spectrum (2-250 keV) is found to be consistent with a simple power-law (Γ ∼ 1.63). In agreement with previous observations of this system, a significant excess of soft X-ray flux is detected consistent with the presence of a cool accretion disk. Estimates of the disk inner radius infer a value consistent with the innermost stable circular orbit (ISCO; Rin≲ 6Rg, for certain values of, e.g., NH, i), although we cannot conclusively rule out the presence of an accretion disk truncated at larger radii (Rin∼ 10-50Rg). A weak, relativistically broadened iron line is also detected, in addition to disk reflection at higher energy. However, the iron-K line profile favors an inner radius larger than the ISCO (Rin∼ 10-20Rg). The implications of these observations for models of the accretion flow in the LHS are discussed.

Abstract Copyright:

Journal keyword(s): accretion, accretion disks - black hole physics - X-rays: binaries - X-rays: individual: Swift J1753.5-1027 (read: Swift J1753.5-0127)

CDS comments: In Keywords: Swift J1753.5-1027 is a misprint for Swift J1753.5-0127.

Simbad objects: 6

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