Search Results - "Reis, R. C."

Black hole accretion discs in the canonical low-hard state by Reis, R. C., Fabian, A. C., Miller, J. M.

“…Stellar mass black holes in the low-hard state may hold clues to jet formation and basic accretion disc physics, but the nature of the accretion flow remains…”
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Broad line emission from iron K- and L-shell transitions in the active galaxy 1H 0707-495 by Caballero-Garcia, M. D, Young, A. J, Uttley, P, Miller, J. M, Miniutti, G, Boller, T, Reynolds, C. S, Fabian, A. C, Ross, R. R, Tanaka, Y, Larsson, J, Ponti, G, Brandt, W. N, Gallo, L. C, Reis, R. C, Blustin, A. J, Zoghbi, A

“…Since the 1995 discovery of the broad iron K-line emission from the Seyfert galaxy MCG-6-30-15 (ref. 1), broad iron K lines have been found in emission from…”
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On the determination of the spin of the black hole in Cyg X-1 from X-ray reflection spectra by Fabian, A. C., Wilkins, D. R., Miller, J. M., Reis, R. C., Reynolds, C. S., Cackett, E. M., Nowak, M. A., Pooley, G. G., Pottschmidt, K., Sanders, J. S., Ross, R. R., Wilms, J.

“…The spin of Cygnus X-1 is measured by fitting reflection models to Suzaku data covering the energy band 0.9-400 keV. The inner radius of the accretion disc is…”
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A 200-Second Quasi-Periodicity After the Tidal Disruption of a Star by a Dormant Black Hole by Reis, R. C., Miller, J. M., Reynolds, M. T., Gültekin, K., Maitra, D., King, A. L., Strohmayer, T. E.

“…Supermassive black holes (SMBHs; mass is greater than or approximately 10 5 times that of the Sun) are known to exist at the center of most galaxies with…”
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A reflection origin for the soft and hard X-ray excess of Ark 120 by Nardini, E., Fabian, A. C., Reis, R. C., Walton, D. J.

“…Over the last few years, several models have been proposed to interpret the widespread soft excess observed in the X-ray spectra of type 1 active galactic…”
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X-ray luminosities of optically selected cataclysmic variables and application to the Galactic ridge X-ray emission by Reis, R. C., Wheatley, P. J., Gänsicke, B. T., Osborne, J. P.

“…By studying Swift X-ray spectra of an optically selected, non-magnetic sample of nearby cataclysmic variables (CVs), we show that there is a population with…”
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Long XMM observation of the narrow-line Seyfert 1 galaxy IRAS 13224−3809: rapid variability, high spin and a soft lag by Fabian, A. C., Kara, E., Walton, D. J., Wilkins, D. R., Ross, R. R., Lozanov, K., Uttley, P., Gallo, L. C., Zoghbi, A., Miniutti, G., Boller, T., Brandt, W. N., Cackett, E. M., Chiang, C.-Y., Dwelly, T., Malzac, J., Miller, J. M., Nardini, E., Ponti, G., Reis, R. C., Reynolds, C. S., Steiner, J. F., Tanaka, Y., Young, A. J.

“…The narrow-line Seyfert 1 galaxy IRAS 13224−3809 has been observed with XMM-Newton for 500 ks. The source is rapidly variable on time-scales down to a few 100…”
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Reflection from the strong gravity regime in a lensed quasar at redshift z = 0.658 by Reis, R. C., Reynolds, M. T., Miller, J. M., Walton, D. J.

“…Observations of a gravitationally lensed quasar at redshift 0.658 imply a high spin parameter, which indicates that this supermassive black hole grew by…”
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Determining the spin of two stellar-mass black holes from disc reflection signatures by Reis, R. C., Fabian, A. C., Ross, R. R., Miller, J. M.

“…We present measurements of the dimensionless spin parameters and inner-disc inclination of two stellar-mass black holes. The spin parameter of SWIFT…”
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Measuring the Spin of GRS 1915+105 with Relativistic Disk Reflection by Blum, J. L, Miller, J. M, Fabian, A. C, Miller, M. C, Homan, J, van der Klis, M, Cackett, E. M, Reis, R. C

“…GRS 1915+105 harbors one of the most massive known stellar black holes in the Galaxy. In 2007 May, we observed GRS 1915+105 for ~117 ks in the low/hard state…”
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Explaining the hard excesses in active galactic nuclei by Walton, D. J., Reis, R. C., Fabian, A. C.

“…A common model invoked to describe the X-ray spectra of active galaxies includes a relativistically blurred reflection component, which in some cases can be…”
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A systematic look at the very high and low/hard state of GX 339−4: constraining the black hole spin with a new reflection model by Reis, R. C., Fabian, A. C., Ross, R. R., Miniutti, G., Miller, J. M., Reynolds, C.

“…We present a systematic study of GX 339−4 in both its very high and low hard states from simultaneous observations made with XMM–Newton and RXTE in 2002 and…”
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Multistate observations of the Galactic black hole XTE J1752−223: evidence for an intermediate black hole spin by Reis, R. C., Miller, J. M., Fabian, A. C., Cackett, E. M., Maitra, D., Reynolds, C. S., Rupen, M., Steeghs, D. T. H., Wijnands, R.

“…The Galactic black hole candidate XTE J1752−223 was observed during the decay of its 2009 outburst with the Suzaku and XMM-Newton observatories. The observed…”
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SUZAKU OBSERVATION OF THE BLACK HOLE CANDIDATE MAXI J1836-194 IN A HARD/INTERMEDIATE SPECTRAL STATE by REIS, R. C, MILLER, J. M, REYNOLDS, M. T, FABIAN, A. C, WALTON, D. J

“…We report on a Suzaku observation of the newly discovered X-ray binary MAXI J1836-194. The source is found to be in the hard/intermediate spectral state and…”
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On Neutral Absorption and Spectral Evolution in X-Ray Binaries by Miller, J. M, Cackett, E. M, Reis, R. C

“…Current X-ray observatories make it possible to follow the evolution of transient and variable X-ray binaries across a broad range in luminosity and source…”
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Artificial intelligence for skin cancer detection and classification for clinical environment: a systematic review by Furriel, Brunna C R S, Oliveira, Bruno D, Prôa, Renata, Paiva, Joselisa Q, Loureiro, Rafael M, Calixto, Wesley P, Reis, Márcio R C, Giavina-Bianchi, Mara

“…Skin cancer is one of the most common forms worldwide, with a significant increase in incidence over the last few decades. Early and accurate detection of this…”
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Spatial Model of Optimization Applied in the Distributed Generation Photovoltaic to Adjust Voltage Levels by Cararo, José A. G., Caetano Neto, João, Vilela Júnior, Wagner A., Reis, Márcio R. C., Wainer, Gabriel A., dos Santos, Paulo V., Calixto, Wesley P.

“…The main objective of this work is to develop a methodology for analyzing the quality of the voltage level in the distribution power grid to identify and…”
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Incidence of cardiovascular risk factors in female patients with systemic lupus erythematosus: a 3-year follow-up cohort by Monção, C S A, Martins, L N, Penteado, M P S, Reis, R C P, Santos, F M M, Lanna, C C D, Ribeiro, A L, Telles, R W

“…Objectives To evaluate the incidence and variability of traditional coronary artery disease (CAD) risk factors in a cohort of lupus patients and to investigate…”
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Thermal emission from the stellar-mass black hole binary XTE J1118+480 in the low/hard state by Reis, R. C., Miller, J. M., Fabian, A. C.

“…We report on the detection of a thermal disc component from the stellar-mass black hole binary XTE J1118+480 in the canonical low/hard state. The presence of a…”
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MULTI-WAVELENGTH COVERAGE OF STATE TRANSITIONS IN THE NEW BLACK HOLE X-RAY BINARY SWIFT J1910.2-0546 by Degenaar, N, Maitra, D, CACKETT, E M, Reynolds, M T, Miller, J M, Reis, R C, King, A L, Gultekin, K, Bailyn, C D, Buxton, M M, MacDonald, R K D, Fabian, A C, Fox, D B, RYKOFF, E S

“…Understanding how black holes accrete and supply feedback to their environment is one of the outstanding challenges of modern astrophysics. Swift J1910.2-0546…”
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