The Halo Black Hole X‐Ray Transient XTE J1118+480
نویسندگان
چکیده
منابع مشابه
The 2005 outburst of the halo black hole X - ray transient XTE
We present optical and infrared monitoring of the 2005 outburst of the halo black hole X-ray transient XTE J1118+480. We measured a total outburst amplitude of ∼ 5.7±0.1 mag in the R band and ∼ 5 mag in the infrared J, H and K s bands. The hardness ratio HR2 (5-12 keV/3-5 keV) from the RXTE/ASM data is 1.53±0.02 at the peak of the outburst indicating a hard spectrum. Both the shape of the light...
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The 1998 outburst of the bright Galactic black hole binary system XTE J1550 − 564 was used to constrain the accretion disc structure in the strongly Comptonized very high state spectra. These data show that the disc emission is not easily compatible with the constant area L ∝ T 4 behaviour seen during the thermal-dominated high/soft state and weakly Comptonized very high state. Even after corre...
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We report the result of an XMM–Newton observation of the black hole X-ray transient XTE J1650–500 in quiescence. The source was not detected, and we set upper limits on the 0.5–10 keV luminosity of 0.9–1.0 × 1031 erg s−1 (for a newly derived distance of 2.6 kpc). These limits are in line with the quiescent luminosities of black hole X-ray binaries with similar orbital periods (∼7–8 h).
متن کاملULTRACAM observations of the black hole X - ray transient XTE J 1118 + 480 in quiescence
We present high time-resolution multicolour observations of the quiescent soft X-ray transient XTEJ1118+480 obtained with ULTRACAM. Superimposed on the double-humped continuum g ′ and i -band lightcurves are rapid flare events which typically last a few minutes. The power density spectrum of the lightcurves can be described by a broken power–law model with a break frequency at ∼2mHz or a power–...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2001
ISSN: 0004-637X,1538-4357
DOI: 10.1086/321572