An Extreme, Blueshifted Iron‐Line Profile in the Narrow‐Line Seyfert 1 PG 1402+261: An Edge‐on Accretion Disk or Highly Ionized Absorption?

2004 ◽  
Vol 615 (1) ◽  
pp. 150-155 ◽  
Author(s):  
J. N. Reeves ◽  
D. Porquet ◽  
T. J. Turner
Keyword(s):  
Accretion Disk ◽  
Line Profile ◽  
Narrow Line ◽  
Iron Line

scholarly journals Studying the Reflection Spectra of the New Black Hole X-Ray Binary Candidate MAXI J1631−479 Observed by NuSTAR: A Variable Broad Iron Line Profile

2020 ◽  
Vol 893 (1) ◽  
pp. 30 ◽  
Author(s):  
Yanjun Xu ◽  
Fiona A. Harrison ◽  
John A. Tomsick ◽  
Dominic J. Walton ◽  
Didier Barret ◽  
...  
Keyword(s):  
Black Hole ◽  
Line Profile ◽  
Reflection Spectra ◽  
Iron Line ◽  
X Ray

scholarly journals A Broad Iron Line in the Chandra/HETG Spectrum of 4U 1705-44

2004 ◽  
Vol 194 ◽  
pp. 218-218
Author(s):  
T. Di Salvo ◽  
R. Iaria ◽  
M. Méndez ◽  
L. Burderi ◽  
N. R. Robba ◽  
...  
Keyword(s):  
Neutron Star ◽  
Accretion Disk ◽  
Iron Line ◽  
Preliminary Results

We present preliminary results from a Chandra 30 ks observation of the atoll sourco 4U 1705 44. In particular we concentrate on the study of the iron Kα line, using the HEG spectrometer. The iron Kα line at ~ 6.6 keV is found to be intrinsically broad (FWHM ~ 1.7 keV); its width can be explained by reflection from a cold accretion disk extending down to ~ 17 km from the neutron star center or by Compton broadening in the hotter (~ 3 – 4 keV) corona.

Iron Line Complex from Illuminated Accretion Disk Atmospheres

2009 ◽  
Author(s):  
A. Rózańska ◽  
J. Madej ◽  
Jéro^me Rodriguez ◽  
Phillippe Ferrando
Keyword(s):  
Accretion Disk ◽  
Iron Line ◽  
Line Complex

scholarly journals Rapid Variations in the Broad Hβ Profile of the Radio Galaxy 3C 390.3: Possible Evidence for Turbulence in the Accretion Disk

2002 ◽  
Vol 184 ◽  
pp. 357-358
Author(s):  
N. S. Asatrian ◽  
E.Ye. Khachikian ◽  
P. Notni
Keyword(s):  
Accretion Disk ◽  
Line Profile ◽  
Radio Galaxy ◽  
Difference Spectrum ◽  
Kinematic Parameters ◽  
Difference Spectra ◽  
Shape Difference ◽  
Profile Shape ◽  
Short Timescale ◽  
The Difference

We report on implications for the geometrical and kinematic parameters of BLR gas on the basis of short timescale variability in the broad Hβ profile.Data on rapid variations have been obtained at the 6-m telescope of the SAO (Asatrian, Khachikian & Notni, 1999). To search for variations in the profile shape, difference spectra (first minus second epoch) were examined. We believe that the structure of the underlying stellar continuum and the atmospheric features do not affect the Hβ difference profiles of 3C 390.3 significantly.Variations occurred simultaneously on the blue and red sides of Hβ on a timescale of ~ 1.452 hours and take the form of three narrow, positive and negative small bumps drifting across the line profile in the difference spectrum. The positions of the bumps are −2300, +4700 (negative) and −3700 kms2212;1 (positive).

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