The truncated and evolving inner accretion disc of the black hole GX 339-4

被引:79
作者
Plant, D. S. [1 ]
Fender, R. P. [1 ,2 ]
Ponti, G. [3 ]
Munoz-Darias, T. [1 ,2 ]
Coriat, M. [1 ]
机构
[1] Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, Hants, England
[2] Univ Oxford, Dept Phys, Oxford OX1 3RH, England
[3] Max Planck Inst Extraterr Phys, D-85748 Garching, Germany
关键词
accretion; accretion disks; black hole physics; relativistic processes; X-rays: binaries; X-RAY REFLECTION; ADVECTION-DOMINATED ACCRETION; PHOTON IMAGING CAMERA; XMM-NEWTON SPECTRUM; LOW/HARD STATE; IRON LINE; NEUTRON-STAR; HARD STATE; CYGNUS X-1; SOFT STATE;
D O I
10.1051/0004-6361/201423925
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The nature of accretion onto stellar mass black holes in the low/hard state remains unresolved, with some evidence suggesting that the inner accretion disc is truncated and replaced by a hot flow. However, the detection of relativistic broadened Fe emission lines, even at relatively low luminosities, seems to require an accretion disc extending fully to its innermost stable circular orbit. Modelling such features is, however, highly susceptible to degeneracies, which could easily bias any interpretation. We present the first systematic study of the Fe line region to track how the inner accretion disc evolves in the low/hard state of the black hole GX 339-4. Our four observations display increased broadening of the Fe line over two magnitudes in luminosity, which we use to track any variation of the disc inner radius. We find that the disc extends closer to the black hole at higher luminosities, but is consistent with being truncated throughout the entire low/hard state, a result which renders black hole spin estimates inaccurate at these stages of the outburst. Furthermore, we show that the evolution of our spectral inner disc radius estimates corresponds very closely to the trend of the break frequency in Fourier power spectra, supporting the interpretation of a truncated and evolving disc in the hard state.
引用
收藏
页数:19
相关论文
共 109 条
[1]  
[Anonymous], ARXIV12100318
[2]   ROTATING BLACK HOLES - LOCALLY NONROTATING FRAMES, ENERGY EXTRACTION, AND SCALAR SYNCHROTRON RADIATION [J].
BARDEEN, JM ;
TEUKOLSKY, SA ;
PRESS, WH .
ASTROPHYSICAL JOURNAL, 1972, 178 (02) :347-+
[3]   The evolution of the timing properties of the black-hole transient GX 339-4 during its 2002/2003 outburst [J].
Belloni, T ;
Homan, J ;
Casella, P ;
van der Klis, M ;
Nespoli, E ;
Lewin, WHG ;
Miller, JM ;
Méndez, M .
ASTRONOMY & ASTROPHYSICS, 2005, 440 (01) :207-U132
[4]   A unified description of the timing features of accreting X-ray binaries [J].
Belloni, T ;
Psaltis, D ;
van der Klis, M .
ASTROPHYSICAL JOURNAL, 2002, 572 (01) :392-406
[5]   INTEGRAL/RXTE high-energy observation of a state transition of GX 339-4 [J].
Belloni, T ;
Parolin, I ;
Del Santo, M ;
Homan, J ;
Casella, P ;
Fender, RP ;
Lewin, WHG ;
Méndez, M ;
Miller, JM ;
van der Klis, M .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2006, 367 (03) :1113-1120
[6]  
Belloni TM, 2011, B ASTRON SOC INDIA, V39, P409
[7]   Constraining black hole spin via X-ray spectroscopy [J].
Brenneman, Laura W. ;
Reynolds, Christopher S. .
ASTROPHYSICAL JOURNAL, 2006, 652 (02) :1028-1043
[8]   On the variation of black hole accretion disc radii as a function of state and accretion rate [J].
Cabanac, C. ;
Fender, R. P. ;
Dunn, R. J. H. ;
Koerding, E. G. .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2009, 396 (03) :1415-1440
[9]   Joint spectral-timing modelling of the hard lags in GX 339-4: constraints on reflection models [J].
Cassatella, P. ;
Uttley, P. ;
Wilms, J. ;
Poutanen, J. .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2012, 422 (03) :2407-2416
[10]   Re-examining the XMM-Newton spectrum of the black hole candidate XTE J1652-453 [J].
Chiang, Chia-Ying ;
Reis, R. C. ;
Walton, D. J. ;
Fabian, A. C. .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2012, 425 (04) :2436-2442