Search Results - "Gunn, J. E"
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Astrophysically motivated bulge-disc decompositions of Sloan Digital Sky Survey galaxies
Published in Monthly notices of the Royal Astronomical Society (01-04-2012)“…We present a set of bulge-disc decompositions for a sample of 71 825 Sloan Digital Sky Survey (SDSS) main-sample galaxies in the redshift range 0.003 < z <…”
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Optical‐to‐virial velocity ratios of local disc galaxies from combined kinematics and galaxy–galaxy lensing
Published in Monthly notices of the Royal Astronomical Society (01-10-2012)“…ABSTRACT In this paper, we measure the optical‐to‐virial velocity ratios Vopt/V200c of disc galaxies in the Sloan Digital Sky Survey (SDSS) at a mean redshift…”
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Toward Spectral Classification of L and T Dwarfs: Infrared and Optical Spectroscopy and Analysis
Published in The Astrophysical journal (01-01-2002)Get full text
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SDSS data management and photometric quality assessment
Published in Astronomische Nachrichten (01-10-2004)“…We summarize the Sloan Digital Sky Survey data acquisition and processing steps, and describe runQA, a pipeline designed for automated data quality assessment…”
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Panchromatic properties of 99 000 galaxies detected by SDSS, and (some by) ROSAT, GALEX, 2MASS, IRAS, GB6, FIRST, NVSS and WENSS surveys
Published in Monthly notices of the Royal Astronomical Society (21-08-2006)“…We discuss the panchromatic properties of 99 088 galaxies selected from the Sloan Digital Sky Survey (SDSS) Data Release 1 'main' spectroscopic sample (a…”
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Calibrated Tully-Fisher relations for improved estimates of disc rotation velocities
Published in Monthly notices of the Royal Astronomical Society (01-11-2011)“…In this paper, we derive scaling relations between photometric observable quantities and disc galaxy rotation velocity V rot or Tully-Fisher relations (TFRs)…”
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The effect of environment on discs and bulges
Published in Monthly notices of the Royal Astronomical Society (01-01-2013)“…We examine the changes in the properties of galactic bulges and discs with environment for a volume-limited sample of 12 500 nearby galaxies from Sloan Digital…”
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The rest-frame optical colours of 99 000 Sloan Digital Sky Survey galaxies
Published in Monthly notices of the Royal Astronomical Society (01-09-2006)“…We discuss the colours of 99 088 galaxies selected from the Sloan Digital Sky Survey (SDSS) Data Release 1 ‘main’ spectroscopic sample (a flux-limited sample,…”
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9
The Milky Way Tomography with SDSS. I. Stellar Number Density Distribution
Published in The Astrophysical journal (01-02-2008)“…Using the photometric parallax method we estimate the distances to similar to 48 million stars detected by the Sloan Digital Sky Survey (SDSS) and map their…”
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Chromospheric Variability in Sloan Digital Sky Survey M Dwarfs. II. Short-timescale Hα Variability
Published in The Astrophysical journal (20-10-2010)Get full text
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Quasars Probing Quasars. I. Optically Thick Absorbers near Luminous Quasars
Published in The Astrophysical journal (01-11-2006)“…With close pairs of quasars at different redshifts, a background quasar sight line can be used to study a foreground quasar's environment in absorption. We…”
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J-Band Spectroscopy of the z = 5.74 Broad Absorption Line Quasar SDSSp J104433.04–012502.2
Published in The Astrophysical journal (01-11-2001)Get full text
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Detection of Cosmic Magnification with the Sloan Digital Sky Survey
Published in The Astrophysical journal (10-11-2005)“…We present an 8 s detection of cosmic magnification measured by the variation of quasar density due to gravitational lensing by foreground large-scale…”
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14
Chandra Observations of the Highest Redshift Quasars from the Sloan Digital Sky Survey
Published in The Astrophysical journal (10-06-2006)“…We present new Chandra observations of 21 z > 4 quasars, including 11 sources at z > 5. These observations double the number of X-ray-detected quasars at z >…”
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15
An outbreak of Shigella sonnei associated with a recreational spray fountain
Published in American journal of public health (1971) (01-10-2000)“…The quality of recreational fountain water is not routinely monitored. As a means of minimizing water costs, fountains in which the water runoff is collected,…”
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An Efficient Low Resolution and Moderate Resolution Spectrograph for the Hale Telescope
Published in Publications of the Astronomical Society of the Pacific (01-06-1982)Get full text
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Causes of Fever in Patients Infected with Human Immunodeficiency Virus Who Were Admitted to Boston City Hospital
Published in Clinical infectious diseases (01-08-1996)“…We prospectively studied causes of fever in patients with human immunodeficiency virus (HIV) infection that required admission to a municipal hospital. A total…”
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Optical detection and characterization of the eclipsing pulsar's companion
Published in Nature (London) (25-08-1988)“…Several researchers are suggesting that spin-down radiation from the recently discovered millisecond pulsar PSR1957 plus 20 is evaporating material from the…”
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Discovery of a New Gravitational Lens System
Published in Science (American Association for the Advancement of Science) (06-01-1984)“…A new gravitational lens system, the triple radio source MG2016+112, has been discovered. Five emission lines at a redshift of 3.2733 $\pm $ 0.0014 have been…”
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An apparent gravitational lens with an image separation of 2.6 arc min
Published in Nature (London) (08-05-1986)“…Observations are reported which confirm Paczynski's 1986 speculation that the previously known (Arp and Hazard, 1980) pair of 19th magnitude quasars…”
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