Infrared photometry of the black hole candidate Sagittarius A*

1995 ◽  
Vol 439 ◽  
pp. 682 ◽  
Author(s):  
Laird M. Close ◽  
Donald W., Jr. McCarthy ◽  
Fulvio Melia
Keyword(s):  
Black Hole ◽  
Infrared Photometry ◽  
Black Hole Candidate ◽  
Sagittarius A

scholarly journals Detection of Circular Polarization in the Galactic Center Black Hole Candidate Sagittarius A*

1999 ◽  
Vol 523 (1) ◽  
pp. L29-L32 ◽  
Author(s):  
Geoffrey C. Bower ◽  
Heino Falcke ◽  
Donald C. Backer
Keyword(s):  
Black Hole ◽  
Circular Polarization ◽  
Galactic Center ◽  
Black Hole Candidate ◽  
Sagittarius A

scholarly journals General Relativistic Flux Modulations in the Galactic Center Black Hole Candidate Sagittarius A*

1995 ◽  
Vol 448 (1) ◽  
Author(s):  
J. M. Hollywood, ◽  
Fulvio Melia, ◽  
Laird M. Close, ◽  
Donald W. McCarthy, Jr., ◽  
Tatia A. DeKeyser
Keyword(s):  
Black Hole ◽  
Galactic Center ◽  
Black Hole Candidate ◽  
Sagittarius A ◽  
General Relativistic

scholarly journals Properties of Faint X-ray Activity of XTE J1908+094 in 2019

Galaxies ◽  
2021 ◽  
Vol 9 (2) ◽  
pp. 25
Author(s):  
Debjit Chatterjee ◽  
Arghajit Jana ◽  
Kaushik Chatterjee ◽  
Riya Bhowmick ◽  
Sujoy Kumar Nath ◽  
...  
Keyword(s):  
Black Hole ◽  
Temporal Analysis ◽  
Power Density Spectrum ◽  
Periodic Oscillations ◽  
Telescope Array ◽  
Density Spectrum ◽  
X Ray ◽  
Black Hole Candidate ◽  
Short Period ◽  
Spectral State

We study the properties of the faint X-ray activity of Galactic transient black hole candidate XTE J1908+094 during its 2019 outburst. Here, we report the results of detailed spectral and temporal analysis during this outburst using observations from Nuclear Spectroscopic Telescope Array (NuSTAR). We have not observed any quasi-periodic-oscillations (QPOs) in the power density spectrum (PDS). The spectral study suggests that the source remained in the softer (more precisely, in the soft–intermediate) spectral state during this short period of X-ray activity. We notice a faint but broad Fe Kα emission line at around 6.5 keV. We also estimate the probable mass of the black hole to be 6.5−0.7+0.5M⊙, with 90% confidence.

scholarly journals XMM-Newton and INTEGRAL observations of the black hole candidate XTE J1817-330

2007 ◽  
Vol 473 (2) ◽  
pp. 561-568 ◽  
Author(s):  
G. Sala ◽  
J. Greiner ◽  
M. Ajello ◽  
E. Bottacini ◽  
F. Haberl
Keyword(s):  
Black Hole ◽  
Black Hole Candidate

scholarly journals The reflection component in the average and heartbeat spectra of the black hole candidate IGR J17091-3642 during the 2016 outburst

2018 ◽  
Vol 478 (4) ◽  
pp. 4837-4850 ◽  
Author(s):  
Yanan Wang ◽  
Mariano Méndez ◽  
Diego Altamirano ◽  
James Court ◽  
Aru Beri ◽  
...  
Keyword(s):  
Black Hole ◽  
Black Hole Candidate ◽  
Reflection Component

scholarly journals INSIGHT-HXMT Observations of the New Black Hole Candidate MAXI J1535−571: Timing Analysis

2018 ◽  
Vol 866 (2) ◽  
pp. 122 ◽  
Author(s):  
Y. Huang ◽  
J. L. Qu ◽  
S. N. Zhang ◽  
Q. C. Bu ◽  
Y. P. Chen ◽  
...  
Keyword(s):  
Black Hole ◽  
Timing Analysis ◽  
Black Hole Candidate

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
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