SIMBAD references

2007ApJ...658..282Y - Astrophys. J., 658, 282-287 (2007/March-3)

Accretion disk spectra of the brightest ultraluminous X-ray source in M82.

YUAN F., TAAM R.E., MISRA R., WU X.-B. and XUE Y.

Abstract (from CDS):

Emission spectra of hot accretion disks characteristic of advection-dominated accretion flow (ADAF) models are investigated for comparison with the brightest ultraluminous source, X-1, in the galaxy M82. If the spectral state of the source is similar to the low-luminosity hard state of stellar mass black holes in our Galaxy, a fit to the Chandra X-ray spectrum and constraints from the radio and infrared upper limits requires a black hole mass in the range of 9x104-5x105 M. Lower black hole masses (≲104 M) are possible if M82 X-1 corresponds to the high-luminosity hard state of Galactic black hole X-ray binary sources. Both of these spectrally degenerate hot accretion disk solutions lead to an intermediate-mass black hole interpretation for M82 X-1. Since these solutions have different spectral variability with X-ray luminosity and predict different radio/infrared emission, they could be distinguished by future off-axis Chandra observations or simultaneous sensitive radio/infrared detections.

Abstract Copyright:

Journal keyword(s): Black Hole Physics - Galaxies: Individual: Messier Number: M82 - X-Rays: Galaxies

CDS comments: NGC 1313 X-1 = IXO 7, NGC 1313 X-2 = IXO 8

Simbad objects: 12

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2019.10.19-22:58:24

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