Search Results - "Floyd, D J E"
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The drivers of AGN activity in galaxy clusters: AGN fraction as a function of mass and environment
Published in Monthly notices of the Royal Astronomical Society (21-02-2013)“…We present an analysis of optical spectroscopically identified active galactic nuclei (AGN) down to a cluster magnitude of M + 1 in a sample of six…”
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Probing the Upper Scorpius mass function in the planetary-mass regime
Published in Monthly notices of the Royal Astronomical Society (01-11-2013)“…We present the results of a deep ZYJ near-infrared survey of 13.5 deg2 in the Upper Scorpius (USco) OB association. We photometrically selected ∼100 cluster…”
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3
HST imaging of four gravitationally lensed quasars
Published in Monthly notices of the Royal Astronomical Society (01-10-2018)Get full text
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4
A microlensing study of the accretion disc in the quasar MG 0414+0534
Published in Monthly notices of the Royal Astronomical Society (21-12-2008)“…Observations of gravitational microlensing in multiply imaged quasars currently provide the only direct probe of quasar emission region structure on…”
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5
A Microlensing Measurement of Dark Matter Fractions in Three Lensing Galaxies
Published in The Astrophysical journal (10-04-2011)“…Direct measurements of dark matter distributions in galaxies are currently only possible through the use of gravitational lensing observations. Combinations of…”
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6
The drivers of AGN activity in galaxy clusters: AGN fraction as a function of mass and environment
Published 03-12-2012“…[Abridged] We present an analysis of optical spectroscopically-identified AGN to M*+1 in a sample of 6 self-similar SDSS galaxy clusters at z=0.07. These…”
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7
Probing the Upper Scorpius mass function in the planetary-mass regime
Published 08-08-2013“…We present the results of a deep ZYJ near-infrared survey of 13.5 square degrees in the Upper Scorpius (USco) OB association. We photometrically selected ~100…”
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8
A microlensing measurement of dark matter fractions in three lensing galaxies
Published 02-03-2011“…Direct measurements of dark matter distributions in galaxies are currently only possible through the use of gravitational lensing observations. Combinations of…”
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The accretion disc in the quasar SDSS J0924+0219
Published 16-05-2009“…MNRAS (2009), 398, 233 We present single-epoch multi-wavelength optical-NIR observations of the "anomalous" lensed quasar SDSS J0924+0219, made using the…”
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10
A microlensing study of the accretion disc in the quasar MG 0414+0534
Published 07-10-2008“…Observations of gravitational microlensing in multiply imaged quasars currently provide the only direct probe of quasar emission region structure on…”
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11
A microlensing study of the accretion disc in the quasar MG 0414+0534
Published in Monthly notices of the Royal Astronomical Society (21-12-2008)Get full text
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12
The host galaxies of luminous quasars
Published 25-08-2003“…MNRAS (2004), 355, 196 We present results of a deep HST/WFPC2 imaging study of 17 quasars at z~0.4, designed to determine the properties of their host…”
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