Dynamical Evidence for a Black Hole in GX 339−4
نویسندگان
چکیده
منابع مشابه
Is Gx 339 � 4 a Black Hole Candidate ? Optical Spectroscopy
We carried out spectroscopic and photometric observations of the candidate black-hole binary GX 339?4 during its low-hard and high-soft X-ray states. We have found that the emission lines from GX 339?4 have asymmetric, apparently round-topped prooles in the low-hard state (1997 May), and double-peaked prooles in the high-soft state (1998 April and August). Our data do not show obvious velocity ...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2003
ISSN: 0004-637X,1538-4357
DOI: 10.1086/368108