Spectral states of Galactic black hole candidates: Results of observations with ART-P/Granat

1997 ◽  
Vol 19 (1) ◽  
pp. 15-23 ◽  
Author(s):  
S.A Grebenev ◽  
R.A Sunyaev ◽  
M.N Pavlinsky
Keyword(s):  
Black Hole ◽  
Galactic Black Hole ◽  
Spectral States ◽  
Black Hole Candidates

scholarly journals Gamma‐Ray Spectral States of Galactic Black Hole Candidates

1998 ◽  
Vol 500 (2) ◽  
pp. 899-908 ◽  
Author(s):  
J. E. Grove ◽  
W. N. Johnson ◽  
R. A. Kroeger ◽  
K. McNaron‐Brown ◽  
J. G. Skibo ◽  
...  
Keyword(s):  
Black Hole ◽  
Gamma Ray ◽  
Galactic Black Hole ◽  
Spectral States ◽  
Black Hole Candidates

Gamma-ray monitoring of AGN and galactic black hole candidates by the gamma-ray observatory

1992 ◽  
Author(s):  
Wm. A. Wheaton ◽  
James C. Ling ◽  
R. T. Skelton ◽  
Alan Harmon ◽  
Gerald J. Fishman ◽  
...  
Keyword(s):  
Black Hole ◽  
Gamma Ray ◽  
Galactic Black Hole ◽  
Black Hole Candidates

BATSE Observations of Galactic Black Hole Candidates

1995 ◽  
pp. 221-232 ◽  
Author(s):  
W. S. Paciesas ◽  
B. A. Harmon ◽  
B. C. Rubin ◽  
C. A. Wilson ◽  
S. N. Zhang
Keyword(s):  
Black Hole ◽  
Galactic Black Hole ◽  
Black Hole Candidates

scholarly journals Cross-correlation of X-rays for 4U 1608–52

2012 ◽  
Vol 8 (S290) ◽  
pp. 249-250
Author(s):  
Y. J. Lei ◽  
H. T. Zhang ◽  
A. L. Luo ◽  
Y. H. Zhao
Keyword(s):  
Black Hole ◽  
Cross Correlation ◽  
Accretion Rate ◽  
X Rays ◽  
Galactic Black Hole ◽  
The Cross ◽  
Black Hole Candidates

AbstractWe study the cross-correlation between X-rays of different energies for the atoll-type source 4U 1608–52 with RXTE, and find the cross-correlation evolutes along the different branches. The anti-correlation is reported from the Galactic black hole candidates and Z-type luminous sources in their hard states. Our results are a little different from the Z-type sources. Here we provide the first evidence that a similar anti-correlated feature can also be found in atoll-type source, and it is not corresponding to the lowest accretion rate.

scholarly journals Comptonisation and Time-lags in Multi-temperature Plasmas Surrounding Compact Objects

2000 ◽  
Vol 17 (1) ◽  
pp. 48-55
Author(s):  
Jason Cullen
Keyword(s):  
Black Hole ◽  
Gamma Ray ◽  
Time Lag ◽  
Compact Objects ◽  
Time Lags ◽  
Monte Carlo Code ◽  
Energy Bands ◽  
Temporal Behaviour ◽  
Galactic Black Hole ◽  
Black Hole Candidates

AbstractThis paper investigates a recent model proposed by Moskalenko, Collmar & Schönfelder (1998) for the plasma surrounding galactic black hole candidates. Using a linear Monte Carlo code, the spectral and temporal behaviour of the model is found for the case where the plasma geometry consists of a hot shell surrounding a cooler spherical core. The spectrum produced by this model at X-ray and gamma-ray energies is obtained numerically. Also found for the first time in this geometry are the photon time-lags between two energy bands due to rapid aperiodic variability. It is argued that the time-lag information may be able to determine whether this particular geometry is a realistic model for the material surrounding galactic black hole candidates.

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