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

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

2008-04-21

arxiv.org/abs/0804.3378v1

Astronomy and Astrophysics

Astrophysics

5 pages, 2 figures, Accepted by MNRAS

Scientific paper

10.1111/j.1365-2966.2008.13372.x

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 method to the two ULXs from which low-frequency quasi-periodic oscillations have been discovered, M82 X-1 and NGC 5408 X-1. For both sources we obtain a black-hole mass in the range 100~1300 Msun, thus providing evidence for these two sources to host an intermediate-mass black hole.

Affiliated with

Also associated with

No associations

Rating

Weighing the black holes in ultraluminous X-ray sources through timing does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Weighing the black holes in ultraluminous X-ray sources through timing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Weighing the black holes in ultraluminous X-ray sources through timing will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-37167