Negative X-ray reverberation time delays from MCG-6-30-15 and Mrk 766

被引：80
作者：
Emmanoulopoulos, D. [1 ]
McHardy, I. M. [1 ]
Papadakis, I. E. [2 ,3 ,4 ]
机构：
[1] Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, Hants, England
[2] Univ Crete, Dept Phys, Iraklion 71003, Greece
[3] Univ Crete, Inst Theoret & Computat Phys, Iraklion 71003, Greece
[4] Fdn Res & Technol, IESL, Iraklion 71110, Greece
来源：
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2011年 / 416卷 / 01期
基金：
英国科学技术设施理事会;
关键词：
black hole physics; galaxies: individual: MCG-6-30-15; galaxies: individual: Mrk 766; X-rays: galaxies; galaxies: nuclei; galaxies: Seyfert; BLACK-HOLE; LINE EMISSION; CYGNUS X-1; VARIABILITY; LAGS; ENERGY; LONG; STATE; HARD;
D O I：
10.1111/j.1745-3933.2011.01106.x
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We present an X-ray time lag analysis, as a function of Fourier frequency, for MCG-6-30-15 and Mrk 766 using long-term XMM-Newton light curves in the 0.5-1.5 and the 2-4 keV energy bands, together with some physical modelling of the corresponding time lag spectra. Both the time lag spectra of MCG-6-30-15 and Mrk 766 show negative values (i. e. soft band variations lag behind the corresponding hard band variations) at high frequencies, around 10(-3) Hz, similar to those previously observed from 1H 0707-495. The remarkable morphological resemblance between the time lag spectra of MCG-6-30-15 and Mrk 766 indicate that the physical processes responsible for the observed soft time delays are very similar in the two sources, favouring a reflection scenario from material situated very nearby to the central black hole.
引用
收藏
页码：L94 / L98
页数：5
相关论文
共 29 条
[1]   X-ray variability of the Seyfert 1 Markarian 335:: power spectrum and time lags [J].
Arevalo, P. ;
McHardy, I. M. ;
Summons, D. P. .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2008, 388 (01) :211-218
[2]   Spectral-timing evidence for a very high state in the narrow-line Seyfert 1 Ark 564 [J].
Arevalo, P. ;
Papadakis, I. E. ;
Uttley, P. ;
McHardy, I. M. ;
Brinkmann, W. .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2006, 372 (01) :401-409
[3]  
Bendat J. S., 2011, Random data: analysis and measurement procedures.
[4]   THE LICK AGN MONITORING PROJECT: BROAD-LINE REGION RADII AND BLACK HOLE MASSES FROM REVERBERATION MAPPING OF Hβ [J].
Bentz, Misty C. ;
Walsh, Jonelle L. ;
Barth, Aaron J. ;
Baliber, Nairn ;
Bennert, Vardha Nicola ;
Canalizo, Gabriela ;
Filippenko, Alexei V. ;
Ganeshalingam, Mohan ;
Gates, Elinor L. ;
Greene, Jenny E. ;
Hidas, Marton G. ;
Hiner, Kyle D. ;
Lee, Nicholas ;
Li, Weidong ;
Malkan, Matthew A. ;
Minezaki, Takeo ;
Sakata, Yu ;
Serduke, Frank J. D. ;
Silverman, Jeffrey M. ;
Steele, Thea N. ;
Stern, Daniel ;
Street, Rachel A. ;
Thornton, Carol E. ;
Treu, Tommaso ;
Wang, Xiaofeng ;
Woo, Jong-Hak ;
Yoshii, Yuzuru .
ASTROPHYSICAL JOURNAL, 2009, 705 (01) :199-217
[5]  
Bevington P. R., 2002, Data reduction and error analysis for the physical sciences
[6]   Broad line emission from iron K- and L-shell transitions in the active galaxy 1H 0707-495 [J].
Fabian, A. C. ;
Zoghbi, A. ;
Ross, R. R. ;
Uttley, P. ;
Gallo, L. C. ;
Brandt, W. N. ;
Blustin, A. J. ;
Boller, T. ;
Caballero-Garcia, M. D. ;
Larsson, J. ;
Miller, J. M. ;
Miniutti, G. ;
Ponti, G. ;
Reis, R. C. ;
Reynolds, C. S. ;
Tanaka, Y. ;
Young, A. J. .
NATURE, 2009, 459 (7246) :540-542
[7]   A long hard look at MCG-6-30-15 with XMM-Newton [J].
Fabian, AC ;
Vaughan, S ;
Nandra, K ;
Iwasawa, K ;
Ballantyne, DR ;
Lee, JC ;
De Rosa, A ;
Turner, A ;
Young, AJ .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2002, 335 (01) :L1-L5
[8]  
Gabriel C, 2004, ASTR SOC P, V314, P759
[9]   On the X-ray time-lags in the black hole candidates [J].
Kotov, O ;
Churazov, E ;
Gilfanov, M .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2001, 327 (03) :799-807
[10]   The energy-dependent X-ray timing characteristics of the narrow-line Seyfert 1 Mrk 766 [J].
Markowitz, A. ;
Papadakis, I. ;
Arevalo, P. ;
Turner, T. J. ;
Miller, L. ;
Reeves, J. N. .
ASTROPHYSICAL JOURNAL, 2007, 656 (01) :116-128
123