ABeppoSAXandXMM-Newtonspectral study of 4U 1735-44
نویسندگان
چکیده
منابع مشابه
Discovery of KiloHertz Quasi-Periodic Oscillations in 4U 1735−44
We discovered a single kHz quasi-periodic oscillation (QPO) near 1150 Hz in the Rossi X-ray Timing Explorer X-ray light curve of the low mass X-ray binary and atoll source 4U 1735−44. The rms amplitude of this peak was 2–3 %, and the FWHM 6–40 Hz. There are indications that the kHz QPO frequency decreased from 1160 Hz to 1145 Hz when the count rate increased, which would be quite different from...
متن کاملA Hard Look at the Neutron Stars and Accretion Disks in 4u 1636-53, Gx 17+2, and 4u 1705-44 with Nustar
We present NuSTAR observations of neutron star (NS) low-mass X-ray binaries: 4U 1636-53, GX 17+2, and 4U 1705-44. We observed 4U 1636-53 in the hard state, with an Eddington fraction, FEdd, of 0.01; GX 17+2 and 4U 1705-44 were in the soft state with fractions of 0.57 and 0.10, respectively. Each spectrum shows evidence for a relativistically broadened Fe Kα line. Through accretion disk reflecti...
متن کاملNpgRj_Nn_1585 1735..1741
Prolactin-releasing peptide (PrRP) and its receptor G protein–coupled receptor 10 (GPR10) are expressed in brain areas involved in the processing of nociceptive signals. We investigated the role of this new neuropeptidergic system in GPR10-knockout mice. These mice had higher nociceptive thresholds and stronger stress-induced analgesia than wild-type mice, differences that were suppressed by na...
متن کاملSe p 19 98 Discovery of a Second Kilohertz QPO in the X – ray Binary 4 U 1735 – 44
In recent observations with the Rossi X–Ray Timing Explorer we have detected two simultaneous quasi-periodic oscillation (QPO) peaks in the low mass X–ray binary and atoll source 4U 1735–44. The lower and higher frequency QPOs have frequencies varying between 632 and 729 Hz, and 982 and 1026 Hz, respectively. The fractional rms amplitudes are 3.7 to 8.1% and 5.0 to 5.8%. The frequency separatio...
متن کاملRelativistically broadened iron line in the SUZAKU observation of the neutron star X-ray binary 4U 1705-44
The X-ray spectra of accreting compact objects often exhibit discrete emission features associated with fluorescent emission in the accretion disk, the strongest of which is the Fe Kα fluorescence line at 6.4–6.97 keV. These reflection features are amongst the best tools in the study of the inner region of accretion flow around a compact object. Here we report on three SUZAKU observations of th...
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ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2013
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361/201321645