Correlation of X-ray burst properties with source state in the atoll source 4U/MXB 1636 - 53

Journal Article · Sat Sep 01 04:00:00 EDT 1990 · Astrophysical Journal; (USA)

DOI:https://doi.org/10.1086/185802· OSTI ID:6482808

Van der Klis, M; Damen, E; Penninx, W; Van Paradijs, J; Hasinger, G ^[1]

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1. Amsterdam Universiteit (Netherlands) Max-Planck-Institut fuer Physik und Astrophysik, Garching (Germany, F.R.)

A series of Exosat observations of the atoll source 4U/MXB 1636 - 53 shows that duration and temperature of the X-ray bursts strongly correlate with the X-ray spectral and fast variability characteristics of the persistent emission of the source. This implies that spectral shape, fast variability, and burst duration and temperature all correlate well with accretion rate M. This provides a strong argument that in the atoll sources, source-state is determined by M, just as in the Z sources. These observations also show that the persistent X-ray intensity can vary independently from the other mentioned characteristics. Therefore, intensity is probably not a good measure for the accretion rate. 16 refs.

• OSTI ID: 6482808
• Journal Information: Astrophysical Journal; (USA), Journal Name: Astrophysical Journal; (USA) Vol. 360; ISSN ASJOA; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BINARY STARS
COLOR
CORRELATIONS
COSMIC RAY SOURCES
COSMIC X-RAY BURSTS
COSMIC X-RAY SOURCES
EMISSION SPECTRA
LUMINOSITY
NEUTRON STARS
OPTICAL PROPERTIES
ORGANOLEPTIC PROPERTIES
PHYSICAL PROPERTIES
SATELLITES
SPECTRA
STAR ACCRETION
STAR EVOLUTION
STARS
VARIATIONS