Search Results - "Morgan, Nicholas D"

X-Ray and Optical Microlensing in the Lensed Quasar PG 1115+080 by Morgan, Christopher W, Kochanek, Christopher. S, Dai, Xinyu, Morgan, Nicholas D, Falco, Emilio E

“…We analyzed the microlensing of the X-ray and optical emission of the lensed quasar PG 1115+080. We find that the effective radius of the X-ray emission is…”
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The Quasar Accretion Disk Size-Black Hole Mass Relation by Morgan, Christopher W, Kochanek, C. S, Morgan, Nicholas D, Falco, Emilio E

“…We use the microlensing variability observed for 11 gravitationally lensed quasars to show that the accretion disk size at a rest-frame wavelength of 2500 A is…”
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The X-Ray Properties of Optically Selected Galaxy Clusters by Dai, Xinyu, Kochanek, Christopher S, Morgan, Nicholas D

“…We stacked the X-ray data from the ROSAT All Sky Survey for over 4000 clusters selected from the 2MASS catalog and divided them into five richness classes. We…”
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Microlensing of the Lensed Quasar SDSS 0924+0219 by Morgan, Christopher W, Kochanek, C. S, Morgan, Nicholas D, Falco, Emilio E

“…We analyze V-, I-, and H-band HST images and two seasons of R-band monitoring data for the gravitationally lensed quasar SDSS 0924+0219. We clearly see that…”
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SIMULTANEOUS ESTIMATION OF TIME DELAYS AND QUASAR STRUCTURE by MORGAN, Christopher W, EYLER, Michael E, KOCHANEK, C. S, MORGAN, Nicholas D, FALCO, Emilio E, VUISSOZ, C, COURBIN, F, MEYLAN, G

“…We expand our Bayesian Monte Carlo method for analyzing the light curves of gravitationally lensed quasars to simultaneously estimate time delays and the sizes…”
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Simultaneous Estimation of Time Delays and Quasar Structure by Morgan, Christopher W, Eyler, Michael E, Kochanek, C. S, Morgan, Nicholas D, Falco, Emilio E, Vuissoz, C, Courbin, F, Meylan, G

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Erratum: “Microlensing of the Lensed Quasar SDSS 0924+0219” (ApJ, 647, 874 [2006]) by Morgan, Christopher W., Kochanek, C. S., Morgan, Nicholas D., Falco, Emilio E.

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First lensed quasar systems from the VST-ATLAS survey: one quad, two doubles and two pairs of lensless twins by Schechter, Paul L, Morgan, Nicholas D, Chehade, B, Metcalfe, N, Shanks, T, McDonald, Michael

“…We have analyzed images from the VST ATLAS survey to identify candidate gravitationally lensed quasar systems in a sample of WISE sources with W1 - W2 > 0.7…”
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Erratum by Morgan, Christopher W, Kochanek, C. S, Morgan, Nicholas D, Falco, Emilio E

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The Quasar Accretion Disk Size -- Black Hole Mass Relation by Morgan, Christopher W, Kochanek, C. S, Morgan, Nicholas D, Falco, Emilio E

“…We use the microlensing variability observed for eleven gravitationally lensed quasars to show that the accretion disk size at a rest-frame wavelength of 2500…”
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The X-ray Properties of Optically-Selected Galaxy Clusters by Dai, Xinyu, Kochanek, Christopher S, Morgan, Nicholas D

“…Astrophys. J. 658, 917-928,2007 We stacked the X-ray data from the ROSAT All Sky Survey for over 4,000 clusters selected from the 2MASS catalog and divided…”
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X-Ray and Optical Microlensing in the Lensed Quasar PG 1115+080 by Morgan, Christopher W, Kochanek, Christopher S, Dai, Xinyu, Morgan, Nicholas D, Falco, Emilio E

“…We analyzed the microlensing of the X-ray and optical emission of the lensed quasar PG 1115+080. We find that the effective radius of the X-ray emission is…”
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The Quasar Accretion Disk Size - Black Hole Mass Relation by Morgan, Christopher W, Kochanek, C. S, Morgan, Nicholas D, Falco, Emilio E

“…We use the microlensing variability observed for nine gravitationally lensed quasars to show that the accretion disk size at 2500 Angstroms is related to the…”
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Time-Delay Measurement for the Quadruple Lens RX J1131-1231 by Morgan, Nicholas D, Kochanek, Christopher S, Falco, Emilio E, Dai, Xinyu

“…We have measured the three time delays for the quadruple gravitational lens RX J1131-1231 using two seasons of monitoring data. The short delays between cusp…”
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SDSS J1650+4251: A New Gravitational Lens by Morgan, Nicholas D, Snyder, Jeffrey A, Reens, Louis H

“…Astron.J. 126 (2003) 2145 We report that the Sloan Digital Sky Survey quasar SDSS J165043.44+425149.3 is gravitationally lensed into two images, based on…”
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Microlensing of the Lensed Quasar SDSS0924+0219 by Morgan, Christopher W, Kochanek, C. S, Morgan, Nicholas D, Falco, Emilio E

“…Astrophys.J.647:874-885,2006 We analyze V, I and H band HST images and two seasons of R-band monitoring data for the gravitationally lensed quasar…”
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Simultaneous Estimation of Time Delays and Quasar Structure by Morgan, Christopher W, Eyler, Michael E, Kochanek, C. S, Morgan, Nicholas D, Falco, Emilio E, Vuissoz, Christel, Courbin, F, Meylan, G

“…We expand our Bayesian Monte Carlo method for analyzing the light curves of gravitationally lensed quasars to simultaneously estimate time delays and quasar…”
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The Lens Redshift and Group Environment for HE 0435-1223 by Morgan, Nicholas D, Kochanek, Christopher S, Pevunova, Olga, Schechter, Paul L

“…The redshift of the galaxy lensing HE 0435-1223 is 0.4546 +/- 0.0002, based on observations obtained with the Low Dispersion Survey Spectrograph 2 (LDSS2) on…”
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WFI J2026-4536 and WFI J2033-4723: Two New Quadruple Gravitational Lenses by Morgan, Nicholas D, Caldwell, John A. R, Schechter, Paul L, Dressler, Alan, Egami, Eiichi, Rix, Hans-Walter

“…We report the discovery of two new gravitationally lensed quasars, WFI J2026-4536 and WFI J2033-4723, at respective source redshifts of z=2.23 and z=1.66. Both…”
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The Gravitational Lens Candidate FBQ 1633+3134 by Morgan, Nicholas D, Becker, Robert H, Gregg, Michael D, Schechter, Paul L, White, Richard L

“…We present our ground-based optical imaging, spectral analysis, and high resolution radio mapping of the gravitational lens candidate FBQ 1633+3134. This…”
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