Search Results - "Cohen, S. H"
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DO THE MOST MASSIVE BLACK HOLES AT z = 2 GROW VIA MAJOR MERGERS?
Published in The Astrophysical journal (20-10-2016)“…ABSTRACT The most frequently proposed model for the origin of quasars holds that the high accretion rates seen in luminous active galactic nuclei (AGN) are…”
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2
JWST Photometric Time-delay and Magnification Measurements for the Triply Imaged Type Ia “SN H0pe” at z = 1.78
Published in The Astrophysical journal (01-05-2024)“…Abstract Supernova (SN) SN H0pe is a gravitationally lensed, triply imaged, Type Ia SN (SN Ia) discovered in James Webb Space Telescope imaging of the PLCK…”
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Lensed Type Ia Supernova “Encore” at z = 2: The First Instance of Two Multiply Imaged Supernovae in the Same Host Galaxy
Published in Astrophysical journal. Letters (01-06-2024)“…Abstract A bright ( m F150W,AB = 24 mag), z = 1.95 supernova (SN) candidate was discovered in JWST/NIRCam imaging acquired on 2023 November 17. The SN is…”
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4
Role of fecal Clostridium difficile load in discrepancies between toxin tests and PCR: is quantitation the next step in C. difficile testing?
Published in European journal of clinical microbiology & infectious diseases (01-12-2012)“…Direct tests for Clostridium difficile are 30–50 % more sensitive than tests for C. difficile toxins but the reasons for this discrepancy are incompletely…”
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Galaxy Mergers at z 1 in the HUDF: Evidence for a Peak in the Major Merger Rate of Massive Galaxies
Published in The Astrophysical journal (10-05-2008)“…We present a measurement of the galaxy merger fraction and number density from observations in the Hubble Ultra Deep Field (HUDF) for [image]. We fit the…”
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THE SIZE EVOLUTION OF PASSIVE GALAXIES: OBSERVATIONS FROM THE WIDE-FIELD CAMERA 3 EARLY RELEASE SCIENCE PROGRAM
Published in The Astrophysical journal (10-04-2012)“…We present the size evolution of passively evolving galaxies at z ~ 2 identified in Wide-Field Camera 3 imaging from the Early Release Science program. Our…”
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Fall frequency and associated factors among men and women with or at risk for HIV infection
Published in HIV medicine (01-11-2016)“…Objectives Falls and fall‐related injuries are a major public health concern. HIV‐infected adults have been shown to have a high incidence of falls…”
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Spectrophotometrically Identified Stars in the PEARS-N and PEARS-S Fields
Published in The Astrophysical journal (20-04-2009)“…Deep ACS slitless grism observations and identification of stellar sources are presented within the Great Observatories Origins Deep Survey North and South…”
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9
Amphotericin B: Time for a New “Gold Standard”
Published in Clinical infectious diseases (01-08-2003)“…When introduced in 1959, amphotericin B deoxycholate (AmBD) was clearly a life-saving drug. Randomized studies demonstrating its efficacy were not thought to…”
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10
Tracing Galaxy Assembly: Tadpole Galaxies in the Hubble Ultra Deep Field
Published in The Astrophysical journal (10-03-2006)“…In the Hubble Ultra Deep Field (HUDF) an abundance of galaxies is seen with a knot at one end plus an extended tail, resembling a tadpole. These "tadpole…”
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The Galaxy Luminosity Function at z 1 in the HUDF: Probing the Dwarf Population
Published in The Astrophysical journal (20-10-2007)“…We present a catalog of spectrophotometric redshlfts for 1308 galaxies from the Grism ACS Program for Extragalactic Science (GRAPES) observations with the…”
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12
Constraining the Distribution of L and T Dwarfs in the Galaxy
Published in The Astrophysical journal (01-10-2005)“…We estimate the thin-disk scale height of the Galactic population of L and T dwarfs based on star counts from 15 deep parallel fields from the Hubble Space…”
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13
UV-dropout Galaxies in the Goods-South Field from WFC3 Early Release Science Observations
Published in The Astrophysical journal (10-09-2010)“…We combine new high sensitivity ultraviolet (UV) imaging from the Wide Field Camera 3 (WFC3) on the Hubble Space Telescope (HST) with existing deep…”
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14
Nosocomial Diarrhea: Evaluation and Treatment of Causes Other Than Clostridium difficile
Published in Clinical infectious diseases (01-10-2012)“…Diarrhea is common among hospitalized patients but the causes are distinct from those of diarrhea in the community. We review existing data about the…”
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15
Is the Optically Unidentified Radio Source FIRST J121839.7+295325 a Dark Lens?
Published in The Astrophysical journal (20-11-2008)“…We present evidence that the optically unidentified radio source FIRST J121839.7+295325 may be strongly lensing a background galaxy. We estimate the redshift…”
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16
A Self-consistent Model for Brown Dwarf Populations
Published in The Astrophysical journal (01-06-2022)“…Abstract We present a self-consistent model of the Milky Way to reproduce the observed distributions (spectral type, absolute J -band magnitude, effective…”
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Limits to Rest-frame Ultraviolet Emission from Far-infrared-luminous z 6 Quasar Hosts
Published in The Astrophysical journal (01-09-2020)“…We report on a Hubble Space Telescope search for rest-frame ultraviolet emission from the host galaxies of five far-infrared-luminous z 6 quasars and the z =…”
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18
Clues to Active Galactic Nucleus Growth from Optically Variable Objects in the Hubble Ultra Deep Field
Published in The Astrophysical journal (10-03-2006)“…We present a photometric search for objects with point-source components that are optically variable on timescales of weeks to months in the Hubble Ultra Deep…”
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The NuSTAR extragalactic survey of the James Webb Space Telescope North Ecliptic Pole time-domain field
Published in Monthly notices of the Royal Astronomical Society (01-12-2021)“…ABSTRACT We present the NuSTAR extragalactic survey of the James Webb Space Telescope (JWST) North Ecliptic Pole (NEP) Time-Domain Field. The survey covers a…”
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20
NICMOS Imaging of the Dusty Microjansky Radio Source VLA J123642+621331 at z = 4.424
Published in The Astrophysical journal (01-12-1999)“…We present the discovery of a radio galaxy at a likely redshift of z=4.424 in one of the flanking fields of the Hubble Deep Field (HDF). Radio observations…”
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