GRS 1915+105: The brightest Galactic black hole

Chris Done; Grzegorz Wardziński; Marek Gierliński

doi:10.1111/j.1365-2966.2004.07545.x

GRS 1915+105: The brightest Galactic black hole

Chris Done (Lead / Corresponding author), Grzegorz Wardziński, Marek Gierliński (Lead / Corresponding author)

Computational Biology

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128 Citations (Scopus)

Abstract

We compare the evolution of spectral shape with luminosity in GRS 1915+105 with that of 'normal' black holes. The pathological variability of GRS 1915+105, which probably indicates a disc instability, does not require that GRS 1915+105 belongs in a different class to all the other objects. At comparable fractions of Eddington luminosity its spectra and (more importantly) apparent disc stability are both similar to that seen in the 'normal' black holes. Its unique limit-cycle variability only appears when it radiates at uniquely high (super-Eddington) luminosities.

Original language	English
Pages (from-to)	393-403
Number of pages	11
Journal	Monthly Notices of the Royal Astronomical Society
Volume	349
Issue number	2
DOIs	https://doi.org/10.1111/j.1365-2966.2004.07545.x
Publication status	Published - 1 Apr 2004

Keywords

Accretion, accretion discs
X-rays: binaries
X-rays: individual: GRS 1915+105

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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AB - We compare the evolution of spectral shape with luminosity in GRS 1915+105 with that of 'normal' black holes. The pathological variability of GRS 1915+105, which probably indicates a disc instability, does not require that GRS 1915+105 belongs in a different class to all the other objects. At comparable fractions of Eddington luminosity its spectra and (more importantly) apparent disc stability are both similar to that seen in the 'normal' black holes. Its unique limit-cycle variability only appears when it radiates at uniquely high (super-Eddington) luminosities.

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GRS 1915+105: The brightest Galactic black hole

Abstract

Keywords

ASJC Scopus subject areas

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