Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR2.6k papers
- University of California, BerkeleyUS2.5k papers
- The Ohio State UniversityUS2.3k papers
- University of ArizonaUS2.1k papers
- Lawrence Berkeley National LaboratoryUS2.1k papers
- SLAC National Accelerator LaboratoryUS2k papers
- University of California, IrvineUS2k papers
- Yale UniversityUS1.9k papers
- University of Wisconsin–MadisonUS1.9k papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR1.9k papers
- McGill UniversityCA1.9k papers
- University of ChicagoUS1.9k papers
24 papers · 2 filters
Primordial star clusters at extreme magnification
Erik Zackrisson, Juan Gonzalez, Simon Eriksson +4
Gravitationally lensed galaxies with magnification ~10-100 are routinely detected at high redshifts, but magnifications significantly higher than this are hampered by a combination…
The photoheating of the intergalactic medium in synthesis models of the UV background
Ewald Puchwein, James S. Bolton, Martin G. Haehnelt +3
We compare cosmological hydrodynamical simulations combined with the homogeneous metagalactic UV background (UVB) of Haardt & Madau (2012) (HM2012) to observations of the Lyman-alp…
The intergalactic medium in the cosmic web
Nicolas Tejos
The intergalactic medium (IGM) accounts for ~90% of baryons at all epochs and yet its three dimensional distribution in the cosmic web remains mostly unknown. This is so because th…
Lyman-alpha Forest Tomography from Background Galaxies: The First Megaparsec-Resolution Large-Scale Structure Map at z>2
Khee-Gan Lee, Joseph F. Hennawi, Casey Stark +21
We present the first observations of foreground Lyman- forest absorption from high-redshift galaxies, targeting 24 star-forming galaxies (SFGs) with within a $5'…
Comparing Simple Quasar Demographics Models
Melanie Veale, Martin White, Charlie Conroy
This paper explores several simple model variations for the connections among quasars, galaxies, and dark matter halos for redshifts 1 < z < 6. A key component of these models is t…
The Lyman-alpha signature of the first galaxies
Aaron Smith, Chalence Safranek-Shrader, Volker Bromm +1
We present the Cosmic Lyman- Transfer code (COLT), a massively parallel Monte-Carlo radiative transfer code, to simulate Lyman- (Ly) resonant scattering through neutral hy…
Local Group dSph radio survey with ATCA (III): Constraints on Particle Dark Matter
M. Regis, S. Colafrancesco, S. Profumo +3
We performed a deep search for radio synchrotron emissions induced by weakly interacting massive particles (WIMPs) annihilation or decay in six dwarf spheroidal (dSph) galaxies of…
Evidence of patchy hydrogen reionization from an extreme Ly trough below redshift six
George D. Becker, James S. Bolton, Piero Madau +3
We report the discovery of an extremely long (110 Mpc/) and dark () Ly trough extending down to towards the $z_{\rm em} \simeq 6.0…
AGN-driven helium reionization and the incidence of extended HeIII regions at redshift z>3
Michele Compostella, Sebastiano Cantalupo, Cristiano Porciani
We use hydrodynamic simulations post-processed with the radiative-transfer code RADAMESH to assess recent claims that the low HeII opacity observed in z>3 quasar spectra may be inc…
Early and Extended Helium Reionization Over More Than 600 Million Years of Cosmic Time
Gábor Worseck, J. Xavier Prochaska, Joseph F. Hennawi +1
We measure the effective optical depth of HeII Lyα absorption τ at 2.3<z<3.5 in 17 UV-transmitting quasars observed with UV spectrographs on the Hubble Space Te…
The Photon Underproduction Crisis
Juna A. Kollmeier, David H. Weinberg, Benjamin D. Oppenheimer +9
We examine the statistics of the low-redshift Lyman-alpha forest from smoothed particle hydrodynamic simulations in light of recent improvements in the estimated evolution of the c…
The Luminosity Function at z~8 from 97 Y-band dropouts: Inferences About Reionization
Kasper B. Schmidt, Tommaso Treu, Michele Trenti +6
[Abbreviated] We present the largest search to date for Lyman break galaxies (LBGs) based on 350 arcmin of HST observations in the V-, Y-, J- and H-bands from the Brig…
Super-Critical Growth of Massive Black Holes from Stellar-Mass Seeds
Piero Madau, Francesco Haardt, Massimo Dotti
We consider super-critical accretion with angular momentum onto stellar-mass black holes as a possible mechanism for growing billion-solar-mass holes from light seeds at early time…
UV Luminosity Functions at redshifts z~4 to z~10: 10000 Galaxies from HST Legacy Fields
R. J. Bouwens, G. D. Illingworth, P. A. Oesch +11
The remarkable HST datasets from the CANDELS, HUDF09, HUDF12, ERS, and BoRG/HIPPIES programs have allowed us to map out the evolution of the UV LF from z~10 to z~4. We have identif…
The COS-Halos Survey: Physical Conditions and Baryonic Mass in the Low-Redshift Circumgalactic Medium
Jessica K. Werk, J. Xavier Prochaska, Jason Tumlinson +13
We analyze the physical conditions of the cool, photoionized (T K) circumgalactic medium (CGM) using the COS-Halos suite of gas column density measurements for 44 gaseo…
Cosmic Star Formation History
Piero Madau, Mark Dickinson
Over the past two decades, an avalanche of data from multiwavelength imaging and spectroscopic surveys has revolutionized our view of galaxy formation and evolution. Here we review…
The Giant Gemini GMOS survey of z>4.4 quasars - I. Measuring the mean free path across cosmic time
Gábor Worseck, J. Xavier Prochaska, John M. O'Meara +7
We have obtained spectra of 163 quasars at with the Gemini Multi Object Spectrometers on the Gemini North and South telescopes, the largest publicly available s…
Can AGN feedback break the self-similarity of galaxies, groups, and clusters?
M. Gaspari, F. Brighenti, P. Temi +1
It is commonly thought that AGN feedback can break the self-similar scaling relations of galaxies, groups, and clusters. Using high-resolution 3D hydrodynamic simulations, we isola…
A cosmic web filament revealed in Lyman-alpha emission around a luminous high-redshift quasar
Sebastiano Cantalupo, Fabrizio Arrigoni-Battaia, J. Xavier Prochaska +2
Simulations of structure formation in the Universe predict that galaxies are embedded in a "cosmic web", where the majority of baryons reside as rarefied and highly ionized gas. Th…
The Data Release of the Sloan Digital Sky Survey-II Supernova Survey
Masao Sako, Bruce Bassett, Andrew C. Becker +46
This paper describes the data release of the Sloan Digital Sky Survey-II (SDSS-II) Supernova Survey conducted between 2005 and 2007. Light curves, spectra, classifications, and anc…
Observations of environmental quenching in groups in the 11 Gyr since z=2.5: different quenching for central and satellite galaxies
Tomer Tal, Avishai Dekel, Pascal Oesch +16
We present direct observational evidence for star formation quenching in galaxy groups in the redshift range 0<z<2.5. We utilize a large sample of nearly 6000 groups, selected by f…
Interpreting Short Gamma Ray Burst Progenitor Kicks and Time Delays Using the Host Galaxy-Dark Matter Halo Connection
Peter S. Behroozi, Enrico Ramirez-Ruiz, Christopher L. Fryer
Nearly 20% of short gamma-ray bursts (sGRBs) have no observed host galaxies. Combining this finding with constraints on galaxies' dark matter halo potential wells gives strong limi…
Type Ia Supernova Rate Measurements to Redshift 2.5 from CANDELS : Searching for Prompt Explosions in the Early Universe
Steven A. Rodney, Adam G. Riess, Louis-Gregory Strolger +35
The Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey (CANDELS) was a multi-cycle treasury program on the Hubble Space Telescope (HST) that surveyed a total area of ~0…
Galactic and Circumgalactic OVI and its Impact on the Cosmological Metal and Baryon Budgets at 2<z<3.5
Nicolas Lehner, John M. O'Meara, Andrew J. Fox +4
We present the first results from our NASA Keck Observatory Database of Ionized Absorbers toward Quasars (KODIAQ) survey which aims to characterize the properties of the highly ion…