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Highlights of RXTE Studies of Compact Objects after ~5 Years

Autor: Bradt, H., Rothschild, R., Swank, J.

Observations with the Rossi X-ray Timing Explorer (RXTE) have led to fundamental progress in the study of compact objects, in particular neutron stars and black holes. In this paper we present briefly some highlights from ~5 years of RXTE operations.

Externí odkaz: http://arxiv.org/abs/astro-ph/0106508

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Use of Gas Electron Multiplier (GEM) Detectors for an Advanced X-ray Monitor

Autor: Remillard, R. A., Levine, A. M., Boughan, E. A., Bradt, H. V., Morgan, E. H., Becker, U. J., Nenonen, S., Vilhu, O. R.

Publikováno v: in X-Ray and Gamma Ray Instrumentation for Astronomy XI, eds. K. A. Flanagan and O. H. W. Siegmund,Procs. of SPIE, 4140, 178 (2000)

We describe a concept for a NASA SMEX Mission in which Gas Electron Multiplier (GEM) detectors, developed at CERN, are adapted for use in X-ray astronomy. These detectors can be used to obtain moderately large detector area and two-dimensional photon

Externí odkaz: http://arxiv.org/abs/astro-ph/0103428

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X-Ray Light Curves of Gamma-ray Bursts Detected with the All-Sky Monitor on RXTE

Autor: Smith, D. A., Levine, A., Bradt, H., Hurley, K., Feroci, M., Butterworth, P., Golenetskii, S., Pendleton, G., Phengchamnan, S.

Publikováno v: Astrophys.J.Suppl. 141 (2002) 415-428

We present X-ray light curves (1.5-12 keV) for fifteen gamma-ray bursts (GRBs) detected by the All-Sky Monitor on the Rossi X-ray Timing Explorer. We compare these soft X-ray light curves with count rate histories obtained by the high-energy (>12 keV

Externí odkaz: http://arxiv.org/abs/astro-ph/0103357

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Observation of X-ray lines from a Gamma-Ray Burst (GRB991216): Evidence of Moving Ejecta from the Progenitor

Publikováno v: Science 290 (2000) 955-958

We report on the discovery of two emission features observed in the X-ray spectrum of the afterglow of the gamma-ray burst (GRB) of 16 Dec. 1999 by the Chandra X-Ray Observatory. These features are identified with the Ly$_{\alpha}$ line and the narro

Externí odkaz: http://arxiv.org/abs/astro-ph/0011337

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Localizations of Thirteen Gamma-ray Bursts by the All-Sky Monitor on RXTE

Autor: Smith, D. A., Levine, A. M., Bradt, H. V., Remillard, R., Jernigan, J. G., Hurley, K. C., Wen, L., Briggs, M., Cline, T., Mazets, E., Golenetskii, S., Frederics, D.

The All-Sky Monitor (ASM) on the Rossi X-ray Timing Explorer (RXTE) has been used to localize thirteen confirmed X-ray counterparts to Gamma-Ray Bursts (GRBs) detected over three years of operation. We quantify the errors in ASM localizations of brie

Externí odkaz: http://arxiv.org/abs/astro-ph/9907332

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The Weak Blue Bump of H2106-099 and AGN De-Reddening

Autor: Grossan, B., Remillard, R. A., Bradt, H. V., Brissenden, R. J. V., Ohashi, T., Sakao, T.

Publikováno v: ApJ 457 (1996) 199-210

We present multi-frequency spectra of the Seyfert 1 galaxy H2106-099, from radio to hard X-rays, spanning over a decade of observations. The hard X-ray (2-20 keV) spectrum measured with Ginga had a Log slope of -0.80 +/- 0.02 on 1988 May 18 and -1.02

Externí odkaz: http://arxiv.org/abs/astro-ph/9611173

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