Thermal emission from the stellar-mass black hole binary XTE J1118+480 in the low/hard state

Abstract

We report on the detection of a thermal-disk component from the stellar-mass black hole binary XTE J1118+480 in the canonical low/hard state. The presence of a thermal component with a temperature of approximately 0.21keV in the Chandra spectra of XTE J1118+480 is found at more than the 14 sigma confidence level. Based on this evidence we argue that the accretion disk in XTE J1118+480 is not truncated far from the central black hole in contrast with previous claims.

Accepted for publication in MNRAS, 5 pages, 5 figures

References in corpus (7)

• X-ray Properties of Black-Hole Binaries
• Relativistic X-ray Lines from the Inner Accretion Disks Around Black Holes
• A Long, Hard Look at the Low-Hard State in Accreting Black Holes
• A systematic look at the Very High and Low/Hard state of GX 339-4: Constraining the black hole spin with a new reflection model
• X-ray irradiation in XTE J1817-330 and the inner radius of the truncated disc in the hard state
• Initial Measurements of Black Hole Spin in GX 339-4 from Suzaku Spectroscopy
• Further Evidence for Variable Synchrotron Emission in XTE J1118+480 in Outburst

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• Spectral and Timing Properties of the Black Hole X-ray Binary H 1743-322 in the Low/hard State Studied with Suzaku
• X-ray spectra of hot accretion flows
• A multi-wavelength study of the hard and soft states of MAXI J1820+070 during its 2018 outburst
• NICER, NuSTAR and Insight-HXMT views to black hole X-ray binary SLX 1746--331
• The spectral-timing analysis of Cygnus X-1 with Insight-HXMT
• A Minimal Time Scale for the Spectral States of GX 339-4