Results 21 to 30 of about 133,578 (333)

A dozen colliding wind X-ray binaries in the star cluster R136 in the 30Doradus region [PDF]

, 2002
We analyzed archival Chandra X-ray observations of the central portion of the 30 Doradus region in the Large Magellanic Cloud. The image contains 20 X-ray point sources with luminosities between $5 \times 10^{32}$ and $2 \times 10^{35}$ erg s$^{-1}$ (0.2
Bosch G., Brandl B., Cherepashchuk A. M., Corcoran M. F., Crowther P. A., David Pooley, Fehrenback C., Hamann W., Melnick J., Melnick J., Mewe R., Meynet G., Nugis T., Portegies Zwart S. F., Prilutskii O. F., Puls J., Schaerer D., Simon F. Portegies Zwart, Walter H. G. Lewin, Weigelt G., Westerlund B. E., Westerlund B. E.   +21 more
core   +9 more sources

Back to Business: SLX 1746–331 after 13 Years of Silence

The Astrophysical Journal, 2023
The black hole candidate system SLX 1746–331 was back to business in 2023, after a long silence of roughly 13 years. An outburst was observed thoroughly by Insight-HXMT and NICER.
Jing-Qiang Peng, Shu Zhang, Peng-Ju Wang, Shuang-Nan Zhang, Ling-Da Kong, Yu-Peng Chen, Qing-Cang Shui, Long Ji, Jin-Lu Qu, Lian Tao, Ming-Yu Ge, Rui-Can Ma, Zhi Chang, Jian Li, Zhao-sheng Li, Zhuo-Li Yu, Zhe Yan, Peng Zhang, Yun-Xiang Xiao, Shu-Jie Zhao   +19 more
doaj   +1 more source

The Low-Mass X-Ray Binary-Globular Cluster Connection in NGC 4472 [PDF]

, 2002
We have analyzed the low-mass X-ray binary (LMXB) candidates in a Chandra observation of the giant elliptical galaxy NGC 4472. In a region observed by the Hubble Space Telescope (HST), approximately 40% of the bright (LX ≳ 1037 ergs s-1) LMXBs are ...
A. Kundu, T. Maccarone, S. Zepf
semanticscholar   +1 more source

Magnetic Flares on Asymptotic Giant Branch Stars [PDF]

, 2002
We investigate the consequences of magnetic flares on the surface of asymptotic giant branch (AGB) and similar stars. In contrast to the solar wind, in the winds of AGB stars the gas cooling time is much shorter than the outflow time.
Bochanski J. J., Burlaga L. F., Dorfi E. A., Hunsch M., Hunsch M., Joel H. Kastner, Loup C., Noam Soker, Reimers C., Schroder K.-P., Woitke P., Woitke P., Woitke P., Zijlstra A. A.   +13 more
core   +4 more sources

Discovery of Twin kHz QPOs in the Peculiar X-Ray Binary Circinus X-1 [PDF]

, 2006
We report the discovery with the RXTE PCA of twin kHz QPOs in the peculiar X-ray binary Circinus X-1. Eleven cases of simultaneous double QPOs occurred, with significances of up to 6.3 and 5.5 σ and centroid frequencies ranging between approximately 56 ...
S. Boutloukos, M. van der Klis, D. Altamirano, M. Klein-Wolt, R. Wijnands, P. Jonker, R. Fender   +6 more
semanticscholar   +1 more source

Relations between Timing Features and Colors in the X-Ray Binary 4U 0614+09 [PDF]

, 2000
We study the correlations between timing and X-ray spectral properties in the low-mass X-ray binary 4U 0614+09 using a large (265 ks) data set obtained with the Rossi X-Ray Timing Explorer.
S. van Straaten, E. Ford, M. van der Klis, M. Méndez, P. Kaaret   +4 more
semanticscholar   +1 more source

XMM-Newton X-ray study of early type stars in the Carina OB1 association [PDF]

, 2007
<p><b>Aims:</b> X-ray properties of the stellar population in the Carina OB1 association are examined with special emphasis on early-type stars.
Albacete-Colombo, Allen, Antokhin, Antokhina, Bauer, Berghöfer, Bessell, Bohlin, Briggs, Carpenter, Carraro, Cherepashchuk, Corcoran, Corcoran, Corcoran, Cudworth, Davidson, DeGioia-Eastwood, Dessart, Dessart, Evans, Evans, Favata, Favata, Feinstein, Feldmeier, Fiore, Freyhammer, G. Rauw, Gagné, Giacconi, Giardino, Hamaguchi, Harnden, I. I. Antokhin, J. C. Brown, J.-M. Vreux, Jeffries, K. A. van der Hucht, Kahn, Lada, Leitherer, Leutenegger, Levato, Linder, Long, Lucy, Lucy, Lucy, Maheswaran, Maheswaran, Massey, Massey, Massey, Megeath, Meyer, Morrell, Motch, Nandra, Nazé, Niemela, Owocki, Owocki, Pallavicini, Pollock, Pollock, Preibisch, Prilutskii, Raassen, Rathborne, Rauw, Rauw, Rauw, Raymond, Sana, Sana, Sana, Sanchawala, Schlegel, Serio, Seward, Seward, Skinner, Smith, Smith, Stephenson, Stevens, Stevens, Stevens, Tapia, ud-Doula, Usov, Viotti, Walborn, Waldron, Weis   +95 more
core   +4 more sources

Disc–jet coupling in an atoll-type neutron star X-ray binary: 4U 1728–34 (GX 354–0) [PDF]

, 2003
We have analysed 12 simultaneous radio (Very Large Array) and X-ray (RXTE) observations of the atoll-type X-ray binary 4U 1728-34, performed in two blocks in 2000 and 2001.
S. Migliari, R. Fender, M. Rupen, P. Jonker, M. Klein-Wolt, R. Hjellming, M. Klis   +6 more
semanticscholar   +1 more source

New periodic variable stars coincident with ROSAT sources discovered using SuperWASP [PDF]

, 2007
We present optical lightcurves of 428 periodic variable stars coincident with ROSAT X-ray sources, detected using the first run of the SuperWASP photometric survey. Only 68 of these were previously recognised as periodic variables.
A. Collier Cameron, A. J. Norton, Akerlof, Alekseev, Alekseev, B. Enoch, Bejgman, Boller, Bouvier, Bouvier, Bouvier, Brancewicz, Brelstaff, C. A. Haswell, C. Hellier, Chrastina, Collier Cameron, Collier Cameron, D. J. Christian, D. M. Wilson, D. Pollacco, Deeter, Dempsey, Engle, Evans, Feast, Gershberg, Hall, Hall, Hartmann, I. Skillen, J. Irwin, J. P. Nicholas, Jeffries, K. Horne, Koen, Loomis, M. Gallaway, Meinunger, Monet, N. Parley, Neuhauser, P. J. Wheatley, Pallavicini, Pettersen, Pizzolato, Pribulla, Qian, R. A. Street, R. G. West, R. Ryans, Rosner, S. R. Kane, Schmidt, Schmidt, Selam, Skillen, Stanishev, Strassmeier, T. A. Lister, Tamuz, Turner, Vilhu, W. I. Clarkson, Walter, Wegner, Wheatley, Zhang   +67 more
core   +3 more sources

Physical parameters of the high-mass X-ray binary 4U1700-37 [PDF]

, 2002
We present the results of a detailed non-LTE analysis of the ultraviolet and optical spectrum of the O6.5 Iaf + star HD 153919 - the mass donor in the high-mass X-ray binary 4U1700-37.
J. S. Clark, S. P. Goodwin, P. Crowther, L. Kaper, M. Fairbairn, N. Langer, C. B. Ucl, Cardiff, Amsterdam, Bruxelles, Utrecht, Ljmu   +11 more
semanticscholar   +1 more source