Optical spectroscopy of the massive X-ray binary QV Nor (4U 1538 - 52)*
نویسندگان
چکیده
منابع مشابه
A BeppoSAX observation of the massive X-ray binary 4U 1700-37
A 0.5–200 keV BeppoSAX spectrum of the nonpulsating high-mass X-ray binary 4U 1700-37 is presented. The spectrum is well characterized by the standard accreting pulsar model of an absorbed power-law with a photon index of 1.07±0.02 0.03, sharply modified by an exponential cutoff above 5.9 ± 0.2 keV. The e-folding energy of the cutoff is 23.9 ± 0.5 keV. A soft bremsstrahlung component with a tem...
متن کاملA Clumpy Stellar Wind and Luminosity-dependent Cyclotron Line Revealed by the First Suzaku Observation of the High-mass X-ray Binary 4u 1538−522
We present results from the first Suzaku observation of the high-mass X-ray binary 4U 1538−522. The broad-band spectral coverage of Suzaku allows for a detailed spectral analysis, characterizing the cyclotron resonance scattering feature at 23.0± 0.4 keV and the iron Kα line at 6.426± 0.008 keV, as well as placing limits on the strengths of the iron Kβ line and the iron K edge. We track the evo...
متن کاملWind accretion in the massive X-ray binary 4U 2206+54: abnormally slow wind and moderately eccentric orbit
Massive X-ray binaries are usually classified depending on the properties of the donor star in classical, supergiant and Be X-ray binaries, the main difference being the mass transfer mechanism between the two components. The massive X-ray binary 4U 2206+54 does not fit in any of these groups, and deserves a detailed study to understand how the transfer of matter and the accretion on to the com...
متن کاملWind accretion in the massive X-ray binary 4U 2206+54: abnormally slow wind and a moderately eccentric orbit
Massive X-ray binaries are usually classified by the properties of the donor star in classical, supergiant and Be Xray binaries, the main difference being the mass transfer mechanism between the two components. The massive X-ray binary 4U 2206+54 does not fit in any of these groups, and deserves a detailed study to understand how the transfer of matter and the accretion on to the compact object...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 1992
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/256.4.631