Zobrazeno 1 - 10
of 34
pro vyhledávání: '"Bram Boroson"'
Autor:
John M. Dickey, S. D. Vrtilek, Michael McCollough, Bram Boroson, John A. Tomsick, Charles Bailyn, Jay M. Blanchard, Charlotte Johnson
Publikováno v:
The Astrophysical Journal Supplement Series, Vol 268, Iss 1, p 35 (2023)
The rapid variability of X-ray binaries (XRBs) produces a wide range of X-ray states that are linked to activity across the electromagnetic spectrum. It is particularly challenging to study a sample of sources large enough to include all types in the
Externí odkaz:
https://doaj.org/article/85c0f66a144a470194505e49d61b87c7
Autor:
Ewan O'Sullivan, A. Mossman, Jennifer Lauer, Raffaele D'Abrusco, Ginevra Trinchieri, Giuseppina Fabbiano, Douglas Morgan, Douglas Burke, Nazma Islam, Bram Boroson, C. Anderson, S. D. Vrtilek, Michael L. McCollough, Alessandro Paggi, Dong-Woo Kim, Antonella Fruscione
X-ray binaries exhibit a wide range of properties but there are few accepted methods to determine the nature of the compact object. Color-Color-Intensity diagrams have been suggested as a means of distinguishing between systems containing black holes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bf1cde07ff231881e8c1b6f528c3c277
Autor:
Saeqa Dil Vrtilek, Bram Boroson
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 428:3693-3714
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::805a142698fb599a02950b4c7cfb407e
https://doi.org/10.1093/mnras/sts312
https://doi.org/10.1093/mnras/sts312
Publikováno v:
The Astrophysical Journal. 720:1202-1214
We present results from spectral and temporal analyses of Suzaku and RXTE observations of the high mass X-ray binary LMC X-4. Using the full 13 years of available RXTE/ASM data, we apply the ANOVA and Lomb normalized Periodogram methods to obtain an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f69ec09f2e6d84d6c8061b42497254a9
https://doi.org/10.1088/0004-637x/720/2/1202
https://doi.org/10.1088/0004-637x/720/2/1202
Autor:
Saeqa Dil Vrtilek, Bram Boroson
Publikováno v:
The Astrophysical Journal. 710:197-206
Orbital variability has been found in the X-ray hardness of the black hole candidate Cygnus X-1 during the soft/high X-ray state using light curves provided by the Rossi X-ray Timing Explorer's All Sky Monitor. We are able to set broad limits on how
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1076690213b1f2ede5bbf18908f133d9
https://doi.org/10.1088/0004-637x/710/1/197
https://doi.org/10.1088/0004-637x/710/1/197
Publikováno v:
The Astrophysical Journal. 678:1248-1262
High-resolution ultraviolet observations of Cygnus X-1 were obtained at two epochs roughly 1 year apart using the Space Telescope Imaging Spectrograph on the Hubble Space Telescope. Orbital phase ranges around orb = 0 and 0.5 were covered at each epo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9369c5fbc64da1e81c3b47f04a3003ad
https://doi.org/10.1086/586692
https://doi.org/10.1086/586692
Publikováno v:
The Astrophysical Journal. 626:307-316
We present a detailed spectral analysis of Chandra/ACIS-S CC mode observations of the massive X-ray binary system SMC X-1. The system was observed during both the high and low X-ray states of the roughly 60-day superorbital period. The continuum spec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d18124670282e0fd6f47c1fbfec30261
https://doi.org/10.1086/429718
https://doi.org/10.1086/429718
Publikováno v:
Astronomische Nachrichten. 325:209-212
The Space Telescope Imaging Spectrograph (STIS) on HST provides the first ultraviolet data that are of sufficient spectral and temporal resolution to generate Doppler tomograms of X-ray binaries.We show both optical and ultraviolet maps constructed f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::590aa7f66e946471ebd2c4ccd7d863a3
https://doi.org/10.1002/asna.200310233
https://doi.org/10.1002/asna.200310233
Publikováno v:
The Astrophysical Journal. 583:861-877
We analyze observations of the low-mass X-ray binary (LMXB) 2S 0921-63 obtained with the gratings and CCDs on Chandra and XMM. This object is a high-inclination system showing evidence for an accretion disk corona (ADC). Such a corona has the potenti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0bad5f5f0034e081c90cfa8253ba6a47
https://doi.org/10.1086/345475
https://doi.org/10.1086/345475
Publikováno v:
Publications of the Astronomical Society of the Pacific. 114:340-349
We present an archival study of ultraviolet spectra of the X-ray binary LMC X-4 obtained with the IUE satellite. We fit these spectra with models that incorporate the X-ray heating of the O star and accretion disk. A systematic analysis of the UV con
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c7d80e46591cfccdbeadc2d081a6dafd
https://doi.org/10.1086/339254
https://doi.org/10.1086/339254