Stellar-mass black holes and ultraluminous x-ray sources.

نویسندگان

  • Rob Fender
  • Tomaso Belloni
چکیده

We review the likely population, observational properties, and broad implications of stellar-mass black holes and ultraluminous x-ray sources. We focus on the clear empirical rules connecting accretion and outflow that have been established for stellar-mass black holes in binary systems in the past decade and a half. These patterns of behavior are probably the keys that will allow us to understand black hole feedback on the largest scales over cosmological time scales.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Radio emission from an ultraluminous x-ray source.

The physical nature of ultraluminous x-ray sources is uncertain. Stellar-mass black holes with beamed radiation and intermediate black holes with isotropic radiation are two plausible explanations. We discovered radio emission from an ultraluminous x-ray source in the dwarf irregular galaxy NGC 5408. The x-ray, radio, and optical fluxes as well as the x-ray spectral shape are consistent with be...

متن کامل

A Comparison of Intermediate-mass Black Hole Candidate Ultraluminous X-ray Sources and Stellar-mass Black Holes

Cool thermal emission components have recently been revealed in the X-ray spectra of a small number of ultraluminous X-ray sources (ULXs) with ergs s 1 in nearby galaxies. These components can be well 40 L ≥ 10 X fitted with accretion disk models, with temperatures approximately 5–10 times lower than disk temperatures measured in stellar-mass Galactic black holes when observed in their brightes...

متن کامل

Weighing the black holes in ultraluminous X-ray sources through timing

We describe a new method to estimate the mass of black holes in Ultraluminous X-ray Sources (ULXs). The method is based on the recently discovered “variability plane”, populated by Galactic stellar-mass black-hole candidates (BHCs) and supermassive active galactic nuclei (AGNs), in the parameter space defined by the black-hole mass, accretion rate and characteristic frequency. We apply this met...

متن کامل

An Observational Diagnostic for Ultraluminous X-ray Sources

We consider observational tests for the nature of Ultraluminous X-ray sources (ULXs). These must distinguish between thermal–timescale mass transfer on to stellar–mass black holes leading to anisotropic X-ray emission, and accretion on to intermediate–mass black holes. We suggest that long–term transient behavior via the thermal–viscous disk instability could discriminate between these two poss...

متن کامل

A Comparison of Intermediate Mass Black Hole Candidate Ulxs and Stellar-mass Black Holes

Cool thermal emission components have recently been revealed in the X-ray spectra of a small number of ultraluminous X-ray (ULX) sources with LX ≥ 1040 erg/s in nearby galaxies. These components can be well fitted with accretion disk models, with temperatures approximately 5–10 times lower than disk temperatures measured in stellar-mass Galactic black holes when observed in their brightest stat...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:
  • Science

دوره 337 6094  شماره 

صفحات  -

تاریخ انتشار 2012