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1. The universal “heartbeat” oscillications in black hole systems accross the mass-scale | |||
Wu Qingwen,Bozena Czerny,Mikolaj Grzedzielski,Agnieszka Janiuk,Wei-Min Gu,Ai-jun Dong,Xiao-Feng Cao,Bei You,Zhen Yan,Mou-Yuan Sun | |||
Astronomy 09 October 2016 | |||
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Abstract:The hyperluminous X-ray source (HLX-1, the peak X-ray luminosity $sim 10^{42} m erg s^{-1}$) near the spiral galaxy ESO 243-49 is possibly the best candidate for intermediate mass black hole (IMBH), which underwent recurrent outbursts with a period of $sim 400$ days. The physical reason for this quasi-periodic variability is still unclear. We explore the possibility of radiation-pressure instability in accretion disk by modeling the light curve of HLX-1, and find that it can roughly reproduce the duration, period and amplitude of the recurrent outbursts HLX-1 with an IMBH of $sim 10^5$ Msun. Our result provides a possible mechanism to explain the recurrent outbursts in HLX-1. We further find a universal correlation between the outburst duration and the bolometric luminosity for the BH sources with a very broad mass range (e.g., X-ray binaries, XRBs, HLX-1 and active galactic nuclei, AGNs), which is roughly consistent with the prediction of radiation-pressure instability of the accretion disk. These results imply that ``heartbeat" oscillations triggered by radiation-pressure instability may appears in different-scale BH systems. | |||
TO cite this article:Wu Qingwen,Bozena Czerny,Mikolaj Grzedzielski, et al. The universal “heartbeat” oscillications in black hole systems accross the mass-scale[OL].[ 9 October 2016] http://en.paper.edu.cn/en_releasepaper/content/4706442 |
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