Search Results - "Chartas, G"

Resolving the Soft X-Ray Ultrafast Outflow in PDS 456 by Reeves, J. N., Braito, V., Chartas, G., Hamann, F., Laha, S., Nardini, E.

“…Past X-ray observations of the nearby luminous quasar PDS 456 (at z = 0.184) have revealed a wide-angle accretion disk wind with an outflow velocity of…”
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THE STRUCTURE OF THE X-RAY AND OPTICAL EMITTING REGIONS OF THE LENSED QUASAR Q 2237+0305 by Mosquera, A M, Kochanek, C S, Chen, B, Dai, X, Blackburne, J A, Chartas, G

“…(ProQuest: ... denotes formulae and/or non-USASCII text omitted) We use gravitational microlensing to determine the size of the X-ray and optical emission…”
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Simulations of the Fe Kα Energy Spectra from Gravitationally Microlensed Quasars by Krawczynski, H., Chartas, G.

“…Abstract The analysis of the Chandra X-ray observations of the gravitationally lensed quasar RX J1131−1231 revealed the detection of multiple and…”
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Multiphase Powerful Outflows Detected in High-z Quasars by Chartas, G., Cappi, M., Vignali, C., Dadina, M., James, V., Lanzuisi, G., Giustini, M., Gaspari, M., Strickland, S., Bertola, E.

“…Abstract We present results from a comprehensive study of ultrafast outflows (UFOs) detected in a sample of 14 quasars, 12 of which are gravitationally lensed,…”
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Measuring the Innermost Stable Circular Orbits of Supermassive Black Holes by Chartas, G., Krawczynski, H., Zalesky, L., Kochanek, C. S., Dai, X., Morgan, C. W., Mosquera, A.

“…We present a promising new technique, the g-distribution method, for measuring the inclination angle (i), the innermost stable circular orbit (ISCO), and the…”
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The Sizes of the X-ray and Optical Emission Regions of RXJ 1131-1231 by Dai, X, Kochanek, C. S, Chartas, G, Kozłowski, S, Morgan, C. W, Garmire, G, Agol, E

“…We use gravitational microlensing of the four images of the z = 0.658 quasar RXJ 1131-1231 to measure the sizes of the optical and X-ray emission regions of…”
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The X-Ray Properties of the Most Luminous Quasars from the Sloan Digital Sky Survey by Just, D. W, Brandt, W. N, Shemmer, O, Steffen, A. T, Schneider, D. P, Chartas, G, Garmire, G. P

“…Utilizing 21 new Chandra observations as well as archival Chandra, ROSAT, and XMM-Newton data, we study the X-ray properties of a representative sample of 59…”
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The X-rays wind connection in PG 2112+059 by Saez, C, Brandt, W N, Bauer, F E, Chartas, G, Misawa, T, Hamann, F, Gallagher, S C

“…ABSTRACT We study the connection between the X-ray and ultraviolet (UV) properties of the broad absorption line (BAL) wind in the highly X-ray variable quasar…”
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The Effect of Microlensing on the Observed X-Ray Energy Spectra of Gravitationally Lensed Quasars by Krawczynski, H., Chartas, G., Kislat, F.

“…The Chandra observations of several gravitationally lensed quasars show evidence for flux and spectral variability of the X-ray emission that is uncorrelated…”
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Gravitational lensing size scales for quasars by Chartas, G., Rhea, C., Kochanek, C., Dai, X., Morgan, C., Blackburne, J., Chen, B., Mosquera, A., MacLeod, C.

“…We review results from our monitoring observations of several lensed quasars performed in the optical, UV, and X‐ray bands. Modeling of the multi‐wavelength…”
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Extreme-velocity quasar outflows and the role of X-ray shielding by Hamann, F., Chartas, G., McGraw, S., Rodriguez Hidalgo, P., Shields, J., Capellupo, D., Charlton, J., Eracleous, M.

“…Quasar accretion disc winds observed via broad absorption lines (BALs) in the UV produce strong continuous absorption in X-rays. The X-ray absorber is believed…”
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Linking the small-scale relativistic winds and the large-scale molecular outflows in the z = 1.51 lensed quasar HS 0810+2554 by Chartas, G, Davidson, E, Brusa, M, Vignali, C, Cappi, M, Dadina, M, Cresci, G, Paladino, R, Lanzuisi, G, Comastri, A

“…ABSTRACT We present Atacama Large Millimeter/submillimeter Array (ALMA) observations of the quadruply lensed z =  1.51 quasar HS 0810+2554 which provide useful…”
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X-Ray Microlensing in RXJ1131-1231 and HE1104-1805 by Chartas, G, Kochanek, C. S, Dai, X, Poindexter, S, Garmire, G

“…We present results from a monitoring campaign performed with the Chandra X-ray Observatory of the gravitationally lensed quasars RX J1131-1231 and HE…”
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THE WIDE-ANGLE OUTFLOW OF THE LENSED z = 1.51 AGN HS 0810+2554 by Chartas, G., Cappi, M., Hamann, F., Eracleous, M., Strickland, S., Giustini, M., Misawa, T.

“…ABSTRACT We present results from X-ray observations of the gravitationally lensed z = 1.51 active galactic nucleus (AGN) HS 0810+2554 performed with the…”
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REVEALING THE STRUCTURE OF AN ACCRETION DISK THROUGH ENERGY-DEPENDENT X-RAY MICROLENSING by Chartas, G, Kochanek, C S, Dai, X, Moore, D, Mosquera, A M, Blackburne, J A

“…We present results from monitoring observations of the gravitationally lensed quasar RX J1131-1231 performed with the Chandra X-Ray Observatory. The X-ray…”
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FURTHER EVIDENCE THAT QUASAR X-RAY EMITTING REGIONS ARE COMPACT: X-RAY AND OPTICAL MICROLENSING IN THE LENSED QUASAR Q J0158-4325 by Morgan, Christopher W, Hainline, Laura J, Chen, Bin, Tewes, Malte, Kochanek, Christopher S, Dai, Xinyu, Kozlowski, Szymon, Blackburne, Jeffrey A, Mosquera, Ana M, Chartas, G, Courbin, F, Meylan, G

“…We present four new seasons of optical monitoring data and six epochs of X-ray photometry for the doubly imaged lensed quasar Q J0158-4325. The high-amplitude,…”
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Resolving the X-Ray Obscuration in a Low-flux Observation of the Quasar PDS 456 by Reeves, J. N., Braito, V., Nardini, E., Hamann, F., Chartas, G., Lobban, A. P., O'Brien, P. T., Turner, T. J.

“…Simultaneous XMM-Newton, NuSTAR, and HST observations, performed in 2017 March, of the nearby (z = 0.184) luminous quasar PDS 456 are presented. PDS 456 had a…”
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Confirmation of and Variable Energy Injection by a Near-Relativistic Outflow in APM 08279+5255 by Chartas, G, Saez, C, Brandt, W. N, Giustini, M, Garmire, G. P

“…We present results from multi-epoch spectral analysis of XMM-Newton and Chandra observations of the broad absorption line (BAL) quasar APM 08279+5255. Our…”
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XMM-Newton Reveals the Quasar Outflow in PG 1115+080 by Chartas, G, Brandt, W. N, Gallagher, S. C

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MAGNIFIED VIEWS OF THE ULTRAFAST OUTFLOW OF THE z = 1.51 ACTIVE GALACTIC NUCLEUS HS 0810+2554 by Chartas, G, Hamann, F, Eracleous, M, Misawa, T, Cappi, M, Giustini, M, Charlton, J C, Marvin, M

“…We present results from an observation of the gravitationally lensed z = 1.51 narrow absorption line (NAL) active galactic nucleus (AGN) HS 0810+2554 performed…”
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