Broad-band ‘spectro-temporal’ features of extragalactic black hole binaries LMC X-1 and LMC X-3: an AstroSat perspective
نویسندگان
چکیده
منابع مشابه
Black Hole X-ray Binary LMC X–1 and LMC X–3: Observations Confront Spectral Models
We present a comprehensive spectral analysis of black hole X-ray binaries, LMC X–1 and LMC X–3, based on BeppoSAX observations. We test both the multi-color disk plus power law (MCD+PL) model and a newly-developed Monte-Carlo simulationbased model for a Comptonized MCD (CMCD) with either a spherical or a slab-like corona, by comparing the inferred parameters with independent direct measurements...
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LMC X-1 and LMC X-3 are the only known persistent stellar-mass black hole candidates that have almost always shown spectra that are dominated by a soft, thermal component. We present here results from 170ksec long Rossi X-ray Timing Explorer (RXTE) observations of these objects, taken in 1996 December, where their spectra can be described by a disc black body plus an additional soft (Γ ∼ 2.8) h...
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The black hole binary system LMC X-3 has been observed by virtually every X-ray mission since the inception of X-ray astronomy. Among the persistent sources, LMC X-3 is uniquely both habitually soft and highly variable. Using a fully relativistic accretion disk model, we analyze hundreds of spectra collected during eight X-ray missions that span 26 years. For a selected sample of 391 RXTE spect...
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We present RXTE observations of LMC X–2 obtained during a five-day interval in 1997 December, during which the source was radiating at a mean intensity near the Eddington limit, and strongly variable on timescales of seconds to hours. The shapes of the X-ray color-color and hardness-intensity diagrams during the observations, the presence of VLFN and HFN in the power spectra, and the high intri...
متن کاملA New Dynamical Model for the Black Hole Binary LMC X - 1 †
We present a dynamical model of the high mass X-ray binary LMC X-1 based on high-resolution optical spectroscopy and extensive optical and nearinfrared photometry. From our new optical data we find an orbital period of P = 3.90917±0.00005 days. We present a refined analysis of the All Sky Monitor data from RXTE and find an X-ray period of P = 3.9094±0.0008 days, which is consistent with the opt...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 2021
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/staa4012