Chandra Observations of A0620-00 and GS2000+25: Two Very Dark Black Holes

Bibcode
2000HEAD....5.3106G
Garcia, M. R.; McClintock, J. E.; Murray, S. S.; Narayan, R.
Bibliographical reference

American Astronomical Society, HEAD Meeting #5, #31.06; Bulletin of the American Astronomical Society, Vol. 32, p.1233

Advertised on:
10
2000
Number of authors
4
IAC number of authors
0
Citations
0
Refereed citations
0
Description
Chandra observations of two quiecent black-hole x-ray nova (BHXN), A0620-00 and GS2000+25 emphasize the reality of the difference in the x-ray luminosity swings of these systems and their neutron-star containing analogs. For A0620-00, the slope of the x-ray spectrum is much more accurately determined than had previously been possible, and is subtantially harder than the best fit values found with ROSAT. A 20ks Chandra observation of GS2000+25 establishes an upper limit to its x-ray luminosity which is nearly equal to the quiescent luminosity of A0620-00. This work suported by NASA via CXC Contract xxxxx.
Type
Non-refereed

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