Zobrazeno 1 - 10
of 64
pro vyhledávání: '"Boroson, Bram"'
Autor:
Dickey, John M., Vrtilek, S. D., McCollough, Michael, Boroson, Bram, Tomsick, John A., Bailyn, Charles, Blanchard, Jay M., Johnson, Charlotte
The rapid variability of X-ray binaries 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 their vari
Externí odkaz:
http://arxiv.org/abs/2306.16663
Autor:
Islam, Nazma, Vrtilek, S. D., Boroson, Bram, Kim, D. -W., O'Sullivan, E., McCollough, M. L., Fabbiano, G., Anderson, C., Burke, D. J., D'Abrusco, R., Fruscione, A., Lauer, J. L., Morgan, D., Mossman, A., Paggi, A., Trinchieri, G.
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:
http://arxiv.org/abs/2007.05810
Autor:
Islam, N., Vrtilek, S.D., Boroson, Bram, Kim, D.-W., O’Sullivan, E., McCollough, M.L., Fabbiano, G., Anderson, C., Burke, D.J., D’Abrusco, R., Fruscione, A., Lauer, J.L., Morgan, D., Mossman, A., Paggi, A., Trinchieri, G.
Publikováno v:
In New Astronomy May 2021 85
We obtained UV spectra of X-ray binary Scorpius X-1 in the 900-1200 A range with the Far Ultraviolet Spectroscopic Explorer over the full 0.79 day binary orbit. The strongest emission lines are the doublet of O VI at 1032,1038 A and the C III complex
Externí odkaz:
http://arxiv.org/abs/1407.6790
Autor:
Vrtilek, Saeqa Dil, Boroson, Bram Seth
The diverse behaviors displayed by X-ray binaries make it difficult to determine the nature of the underlying compact objects. In particular, identification of systems containing black holes is currently considered robust only if a dynamical mass is
Externí odkaz:
http://arxiv.org/abs/1210.6240
We have selected a sample of 30 normal (non-cD) early type galaxies, for all of which optical spectroscopy is available, and which have been observed with Chandra to a depth such to insure the detection of bright low-mass X-ray binaries (LMXBs) with
Externí odkaz:
http://arxiv.org/abs/1011.2529
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:
http://arxiv.org/abs/1007.3280
Autor:
Boroson, Bram, Vrtilek, Saeqa Dil
Publikováno v:
Astrophys.J.710:197-206,2010
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:
http://arxiv.org/abs/0912.5412
We observed an entire 1.7 day orbit of the X-ray binary Hercules X-1 with the Far Ultraviolet Spectroscopic Explorer (FUSE). Changes in the O VI 1032,1037 line profiles through eclipse ingress and egress indicate a Keplerian accretion disk spinning p
Externí odkaz:
http://arxiv.org/abs/0705.4319
Autor:
Huenemoerder, David P., Boroson, Bram, Schulz, Norbert S., Canizares, Claude R., Buzasi, Derek L., Preston, Heather L., Kastner, Joel H.
Spectroscopy with the Chandra High Energy Transmission Grating Spectrometer provides details on X-ray emission and activity from young and cool stars through resolution of emission lines from a variety of ions. We are beginning to see trends in activ
Externí odkaz:
http://arxiv.org/abs/astro-ph/0310319