scholarly journals The Galactic Black Hole Transient H1743−322 during Outburst Decay: Connections between Timing Noise, State Transitions, and Radio Emission

2006 ◽  
Vol 639 (1) ◽  
pp. 340-347 ◽  
Author(s):  
E. Kalemci ◽  
J. A. Tomsick ◽  
R. E. Rothschild ◽  
K. Pottschmidt ◽  
S. Corbel ◽  
...  
Keyword(s):  
Black Hole ◽  
Radio Emission ◽  
State Transitions ◽  
Galactic Black Hole ◽  
Timing Noise

Rapid State Transitions in the Galactic Black Hole Candidate Source GRS 1915+105

2000 ◽  
Vol 544 (1) ◽  
pp. 443-452 ◽  
Author(s):  
A. R. Rao ◽  
J. S. Yadav ◽  
B. Paul
Keyword(s):  
Black Hole ◽  
State Transitions ◽  
Black Hole Candidate ◽  
Galactic Black Hole

A Close Look at the State Transitions of Galactic Black Hole Transients during Outburst Decay

2004 ◽  
Vol 603 (1) ◽  
pp. 231-241 ◽  
Author(s):  
E. Kalemci ◽  
J. A. Tomsick ◽  
R. E. Rothschild ◽  
K. Pottschmidt ◽  
P. Kaaret
Keyword(s):  
Black Hole ◽  
The State ◽  
State Transitions ◽  
Galactic Black Hole

scholarly journals Multiwavelength Observations of the Galactic Black Hole Transient 4U 1543−47 during Outburst Decay: State Transitions and Jet Contribution

2005 ◽  
Vol 622 (1) ◽  
pp. 508-519 ◽  
Author(s):  
E. Kalemci ◽  
J. A. Tomsick ◽  
M. M. Buxton ◽  
R. E. Rothschild ◽  
K. Pottschmidt ◽  
...  
Keyword(s):  
Black Hole ◽  
State Transitions ◽  
Galactic Black Hole ◽  
Decay State ◽  
Multiwavelength Observations

scholarly journals Discovery and state transitions of the new Galactic black hole candidate MAXI J1535−571

2018 ◽  
Vol 70 (5) ◽  
Author(s):  
Satoshi Nakahira ◽  
Megumi Shidatsu ◽  
Kazuo Makishima ◽  
Yoshihiro Ueda ◽  
Kazutaka Yamaoka ◽  
...  
Keyword(s):  
Black Hole ◽  
State Transitions ◽  
Black Hole Candidate ◽  
Galactic Black Hole

scholarly journals A minimal timescale for the continuum in 4U 1608-52 and Aql X-1

2021 ◽  
Vol 502 (1) ◽  
pp. L72-L78
Author(s):  
K Mohamed ◽  
E Sonbas ◽  
K S Dhuga ◽  
E Göğüş ◽  
A Tuncer ◽  
...  
Keyword(s):  
Black Hole ◽  
Neutron Star ◽  
Power Spectra ◽  
Light Curves ◽  
State Transitions ◽  
Strong Positive Correlation ◽  
Present Evidence ◽  
X Ray ◽  
X Ray Binaries ◽  
The Continuum

ABSTRACT Similar to black hole X-ray binary transients, hysteresis-like state transitions are also seen in some neutron-star X-ray binaries. Using a method based on wavelets and light curves constructed from archival Rossi X-ray Timing Explorer observations, we extract a minimal timescale over the complete range of transitions for 4U 1608-52 during the 2002 and 2007 outbursts and the 1999 and 2000 outbursts for Aql X-1. We present evidence for a strong positive correlation between this minimal timescale and a similar timescale extracted from the corresponding power spectra of these sources.

scholarly journals 2.4. Collisional stellar dynamics around a central galactic black hole

1998 ◽  
Vol 184 ◽  
pp. 65-66
Author(s):  
Marc Freitag ◽  
Willy Benz
Keyword(s):  
Black Holes ◽  
Black Hole ◽  
Stellar Dynamics ◽  
Stellar Cluster ◽  
Stellar Collisions ◽  
Galactic Black Hole ◽  
Tidal Disruptions

Massive but invisible black holes (BH) are often assumed to lurk in the center of many galaxies but definitive proof of their existence has not yet been established. However, in the surrounding stellar cluster stars are unavoidably being destroyed by tidal disruptions and stellar collisions liberating of order 1M⊙ in each event. The subsequent accretion of this gas by the BH could bring it back to “life” and reveal its presence.

THE EFFECTS OF DIFFERENT PERTURBATIONS ON THE DYNAMICS OF THE ACCRETION DISK AROUND THE BLACK HOLE

2007 ◽  
Vol 22 (10) ◽  
pp. 1875-1898 ◽  
Author(s):  
ORHAN DÖNMEZ
Keyword(s):  
Shock Wave ◽  
Black Hole ◽  
Shock Waves ◽  
Accretion Disk ◽  
Periodic Oscillation ◽  
Single Star ◽  
Special Cases ◽  
Galactic Black Hole ◽  
General Relativistic ◽  
Armed Spiral

We investigate the special cases of the formation of shocks in the accretion disks around the nonrotating (Schwarzschild) black holes in cases where one or few stars perturb the disk. We model the structure of disk with a 2D fully general relativistic hydrodynamic code and investigate a variety of cases in which the stars interacting with the disk are captured at various locations. We have found the following results: (1) if the stars perturb the disk at nonsymmetric locations, a moving one-armed spiral shock wave is produced and it destroys the disk eventually; (2) if the disk is perturbed by a single star located close to the black hole, a standing shock wave is produced while the disk becomes an accretion tori; (3) if the disk is perturbed by stars at symmetric locations, moving two-armed spiral shock waves are produced while the disk reaches a steady state; (4) continuous injection of matter into the stable disk produces a standing shock wave behind the black hole. Our outcomes reinforce the view that different perturbations on the stable accretion disk carry out different types of shock waves which produce Quasi-Periodic Oscillation (QPO) phenomena in galactic black hole candidates and it is observed as a X-ray.

scholarly journals UNDERSTANDING GALACTIC BLACK HOLE CANDIDATE GRS 1915+105

2002 ◽  
pp. 2279-2288 ◽  
Author(s):  
SANDIP K. CHAKRABARTI ◽  
S.G. MANICKAM ◽  
A. NANDI ◽  
A.R. RAO
Keyword(s):  
Black Hole ◽  
Black Hole Candidate ◽  
Galactic Black Hole

scholarly journals Energy and time-lag spectra of galactic black-hole X-ray sources in the low/hard state

2003 ◽  
Vol 403 (1) ◽  
pp. L15-L18 ◽  
Author(s):  
P. Reig ◽  
N. D. Kylafis ◽  
D. Giannios
Keyword(s):  
Black Hole ◽  
Time Lag ◽  
X Ray ◽  
Galactic Black Hole ◽  
Hard State

scholarly journals Repeated short-term spectral softening in the low/hard state of the Galactic black hole candidate Swift J1753.5-0127

2015 ◽  
Vol 67 (1) ◽  
pp. 11-11 ◽  
Author(s):  
A. Yoshikawa ◽  
S. Yamada ◽  
S. Nakahira ◽  
M. Matsuoka ◽  
H. Negoro ◽  
...  
Keyword(s):  
Black Hole ◽  
Short Term ◽  
Black Hole Candidate ◽  
Galactic Black Hole ◽  
Hard State
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