Zobrazeno 1 - 10
of 27
pro vyhledávání: '"M. L. McCollough"'
Autor:
B. A. Harmon, Mark H. Finger, J. E. Grindlay, Valerie Connaughton, Bradley M. Peterson, Gerald J. Fishman, Colleen A. Wilson, Didier Barret, W. Henze, Chris Shrader, M. Sahi, William S. Paciesas, M. L. McCollough
Publikováno v:
The Astrophysical Journal Supplement Series. 154:585-622
The Burst and Transient Source Experiment (BATSE), aboard the Compton Gamma Ray Observatory (CGRO), provided a record of the low-energy gamma-ray sky (20-1000 keV) between 1991 April and 2000 May (9.1y). Using the Earth Occultation Technique to extra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e9ce512b35d7f3de1a1f7a00c6519f42
https://doi.org/10.1086/421940
https://doi.org/10.1086/421940
Publikováno v:
The Astrophysical Journal. 590:L37-L40
We report on the discovery of a 590 days long term periodicity in the hard X-ray component of the microquasar \grs found from a comprehensive study of more than four years of {\it RXTE} observations. The periodicity is also observed in the hard X-ray
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::481e0135ed6e57d5ad7ef6b27a719518
https://doi.org/10.1086/376683
https://doi.org/10.1086/376683
Autor:
Philip Kaaret, Vince McIntyre, Duncan Campbell-Wilson, M. L. McCollough, Raj K. Jain, Rob Fender, Charles D. Bailyn, John A. Tomsick, Jon M. Miller, Emrah Kalemci, Stephane Corbel
Publikováno v:
Astrophysical Journal, 554. IOP Publishing Ltd.
We report on radio and X-ray observations of the black hole candidate (BHC) XTE J1550-564 performed during its 2000 X-ray outburst. Observations have been conducted with the Australia Telescope Compact Array (ATCA) and have allowed us to sample the r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b8322037525c50bd0c1cd86b7ff46c77
https://doi.org/10.1086/321364
https://doi.org/10.1086/321364
Autor:
Sergei A. Trushkin, Rob Fender, Frank D. Ghigo, Robert M. Hjellming, Michael P. Rupen, Robert J. Sault, Richard W. Hunstead, Bryan Gaensler, Simon Garrington, Anita M. S. Richards, M. L. McCollough, D. Smith, C. J. de la Force, E. B. Waltman, D. Campbell-Wilson, A. J. Mioduszewski, Ralph Spencer
Publikováno v:
The Astrophysical Journal. 544:977-992
We report on radio observations of the 1999 September event of the X-ray transient V4641 Sgr (=XTE J1819-254=SAX J1819.3-2525). This event was extremely rapid in its rise and decay across radio, optical, and X-ray wavelengths; the X-rays rose to 12 c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7172769b59d2a5ee7a6abdda15582773
https://doi.org/10.1086/317255
https://doi.org/10.1086/317255
Autor:
M. Boer, M. Niel, Kevin Hurley, M. L. McCollough, Chryssa Kouveliotou, R. W. Klebesadel, Michael S. Briggs, E. E. Fenimore, Gerald J. Fishman, Charles A. Meegan, J. G. Laros, T. L. Cline
Publikováno v:
The Astrophysical Journal Supplement Series. 118:391-399
Between the Compton Gamma Ray Observatory (CGRO) launch in 1991 April and the Pioneer Venus Orbiter (PVO) demise in 1992 October, concurrent coverage by CGRO, PVO, and Ulysses was obtained for several hundred gamma-ray bursts (GRBs). Although most of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bd88e07ce8e425ec861e8bb8ccba55e6
https://doi.org/10.1086/313139
https://doi.org/10.1086/313139
Autor:
J. G. Laros, T. L. Cline, Jacob I. Trombka, Albert E. Metzger, M. Niel, Kevin Hurley, Charles A. Meegan, M. L. McCollough, Chryssa Kouveliotou, Michel Boer, Gerald J. Fishman, D. M. Palmer, William V. Boynton, R. Starr
Publikováno v:
The Astrophysical Journal Supplement Series. 110:157-161
Between 1992 October 4 and 1993 August 1, concurrent coverage by the Compton Gamma Ray Observatory (CGRO), Mars Observer (MO), and Ulysses spacecraft was obtained for 78 gamma-ray bursts (GRBs). Although most of these were below the MO and Ulysses th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2b6383542a4e1f6fb50a717fe925a171
https://doi.org/10.1086/312993
https://doi.org/10.1086/312993
Based on X‐ray spectra and studies of the long‐term correlated behavior between radio and soft X‐ray, we present a detailed evolution of Cyg X‐3 through its radio and X‐ray states. We comment on the nature of the hard X‐ray tail and possi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cd3483b0e4b10f90f02c694d3f0dc296
https://ruj.uj.edu.pl/xmlui/handle/item/76455
https://ruj.uj.edu.pl/xmlui/handle/item/76455
Autor:
Kajal K. Ghosh, Kinwah Wu, Thomas G. Pannuti, Allyn F. Tennant, M. L. McCollough, Douglas A. Swartz
A Chandra X-Ray Observatory ACIS-S imaging observation is used to study the population of X-ray sources in the nearby Sab galaxy M81 (NGC 3031). A total of 177 sources are detected with 124 located within the D25 isophote to a limiting X-ray luminosi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::437fa619174821978bdbe4751c865082
http://arxiv.org/abs/astro-ph/0206160
http://arxiv.org/abs/astro-ph/0206160
Autor:
Colleen A. Wilson, B. C. Rubin, Shuang-Nan Zhang, C. R. Robinson, M. L. McCollough, William S. Paciesas, B. A. Harmon, Mark H. Finger, Thomas M. Koshut, Gerald J. Fishman
An Earth orbiting detector sensitive to gamma ray photons will see step-like occultation features in its counting rate when a gamma ray point source crosses the Earth's limb. This is due to the change in atmospheric attenuation of the gamma rays alon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ef62fcc7b0adf0421c4088c1aa74df79
http://arxiv.org/abs/astro-ph/0109069
http://arxiv.org/abs/astro-ph/0109069