Results 41 to 50 of about 130,686 (336)

Three Additional Quiescent Low-Mass X-Ray Binary Candidates in 47 Tucanae [PDF]

, 2004
We identify through their X-ray spectra one certain (W37) and two probable (W17 and X4) quiescent low-mass X-ray binaries (qLMXBs) containing neutron stars in a long Chandra X-ray exposure of the globular cluster 47 Tucanae, in addition to the two ...
C. Heinke, C. Heinke, J. Grindlay, P. Edmonds   +3 more
semanticscholar   +1 more source

Extreme quiescent variability of the transient neutron star low-mass X-ray binary EXO 1745−248 in Terzan 5 [PDF]

Monthly notices of the Royal Astronomical Society, 2017
EXO 1745-248 is a transient neutron star low-mass X-ray binary that resides in the globular cluster Terzan 5. We studied the transient during its quiescent state using 18 Chandra observations of the cluster acquired between 2003 and 2016.
L. R. Sandoval, L. R. Sandoval, R. Wijnands, N. Degenaar, Y. Cavecchi, Y. Cavecchi, C. Heinke, E. Cackett, J. Homan, J. Homan, D. Altamirano, A. Bahramian, G. Sivakoff, Jon M. Miller, A. Parikh   +14 more
semanticscholar   +1 more source

Jet quenching in the neutron star low-mass X-ray binary 1RXS J180408.9−342058 [PDF]

Monthly Notices of the Royal Astronomical Society, 2017
We present quasi-simultaneous radio (VLA) and X-ray (Swift) observations of the neutron star low-mass X-ray binary (NS-LMXB) 1RXS J180408.9-342058 (J1804) during its 2015 outburst. We found that the radio jet of J1804 was bright (232 ± 4 μJy at 10 GHz) during the initial hard X-ray state, before being quenched by more than an order of magnitude during ...
N. V. Gusinskaia, A. T. Deller, J. W. T. Hessels, N. Degenaar, J. C. A. Miller-Jones, R. Wijnands, A. S. Parikh, T. D. Russell, D. Altamirano   +8 more
openaire   +4 more sources

COMMON PATTERNS IN THE EVOLUTION BETWEEN THE LUMINOUS NEUTRON STAR LOW-MASS X-RAY BINARY SUBCLASSES [PDF]

, 2015
The X-ray transient XTE J1701–462 was the first source observed to evolve through all known subclasses of low-magnetic-field neutron star low-mass X-ray binaries (NS-LMXBs), as a result of large changes in its mass accretion rate.
J. Fridriksson, J. Homan, R. Remillard
semanticscholar   +1 more source

The Relation between Outburst Rate and Orbital Period in Low-mass X-Ray Binary Transients [PDF]

Astrophysical Journal, 2019
We have investigated the outburst properties of low-mass X-ray binary transients (LMXBTs) based on a comprehensive study of the outbursts observed in the past few decades.
Jie Lin, Zhen Yan, Zhanwen Han, Wenfei Yu   +3 more
semanticscholar   +1 more source

NICER Observations of Thermonuclear Bursts from 4U 1728-34: Detection of Oscillations prior to the Onset of Two Bursts

The Astrophysical Journal, 2023
We present temporal and time-resolved spectral analyses of all the thermonuclear X-ray bursts observed from the neutron star low-mass X-ray binary 4U 1728−34 with NICER from 2017 June to 2019 September.
Z. Funda Bostancı, Tuğba Boztepe, Tolga Güver, Tod E. Strohmayer, Yuri Cavecchi, Ersin Göğüş, Diego Altamirano, Peter Bult, Deepto Chakrabarty, Sebastien Guillot, Gaurava K. Jaisawal, Christian Malacaria, Giulio C. Mancuso, Andrea Sanna, Jean H. Swank   +14 more
doaj   +1 more source

FirstINTEGRALobservations of eight persistent neutron star low mass X-ray binaries [PDF]

Astronomy & Astrophysics, 2003
Early results from the INTEGRAL Core Program, for a sample of eight persistently bright neutron star low mass X-ray binaries in the energy range from 5 keV to 200 keV are presented. It is shown that INTEGRAL efficiently detects sources and that spectra may be obtained up to several hundreds of keV by combining data from three of the four INTEGRAL ...
PAIZIS, A., BECKMANN, V., COURVOISIER, T. J. L., VILHU, O., LUTOVINOV, A., EBISAWA, K., HANNIKAINEN, D., CHERNYAKOVA, M., ZURITA HERAS, J. A. , RODRIGUEZ, J. , ZDZIARSKI, A. A. , BAZZANO, A. , KUULKERS, E. , OOSTERBROEK, T., FRONTERA, Filippo, F. , GIMENEZ, A. , GOLDONI, P. , SANTANGELO, A. , PALUMBO, G. G. C.   +20 more
openaire   +3 more sources

Calibrating X-Ray Binary Luminosity Functions via Optical Reconnaissance. II. The High-mass XLF and Globular Cluster Population of X-Ray Binaries in the Low Star-forming Spiral M81 [PDF]

Astrophysical Journal, 2022
We characterize the optical counterparts to the compact X-ray source population within the nearby spiral galaxy M81 using multiband Hubble Space Telescope (HST) imaging data.
Q. Hunt, E. Gallo, R. Chandar, A. Mok, A. Prestwich   +4 more
semanticscholar   +1 more source

A propelling neutron star in the enigmatic Be-star $\gamma$~Cassiopeia [PDF]

, 2016
The enigmatic X-ray emission from the bright optical star, $\gamma$ Cassiopeia, is a long-standing problem. $\gamma$ Cas is known to be a binary system consisting of a Be-type star and a low-mass ($M\sim 1\,M_\odot$) companion of unknown nature orbiting ...
Oskinova, L., Postnov, K., Torrejón, J. M.   +2 more
core   +3 more sources

SPECTRAL SOFTENING BETWEEN OUTBURST AND QUIESCENCE IN THE NEUTRON STAR LOW-MASS X-RAY BINARY SAX J1750.8-2900 [PDF]

, 2015
Tracking the spectral evolution of transiently accreting neutron stars between outburst and quiescence probes relatively poorly understood accretion regimes.
J. Allen, M. Linares, J. Homan, D. Chakrabarty   +3 more
semanticscholar   +1 more source