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
14 papers · 2 filters
The evolution of neutral gas in damped Lyman systems from the XQ-100 survey
R. Sánchez-Ramírez, S. L. Ellison, J. X. Prochaska +10
We present a sample of 38 intervening Damped Lyman (DLA) systems identified towards 100 quasars, observed during the XQ-100 survey. The XQ-100 DLA sample is combined wi…
Resolving the Extragalactic -ray Background above 50 GeV with Fermi-LAT
LAT Collaboration
The Fermi Large Area Telescope (LAT) Collaboration has recently released a catalog of 360 sources detected above 50 GeV (2FHL). This catalog was obtained using 80 months of data re…
Big Bang Nucleosynthesis and the Helium Isotope Ratio
Ryan Cooke
The conventional approach to search for departures from the standard model of physics during Big Bang Nucleosynthesis involves a careful, and subtle measurement of the mass fractio…
The Concentration Dependence of the Galaxy-Halo Connection: Modeling Assembly Bias with Abundance Matching
Benjamin V. Lehmann, Yao-Yuan Mao, Matthew R. Becker +2
Empirical methods for connecting galaxies to their dark matter halos have become essential for interpreting measurements of the spatial statistics of galaxies. In this work, we pre…
Ultraviolet Luminosity Density of the Universe During the Epoch of Reionization
Ketron Mitchell-Wynne, Asantha Cooray, Yan Gong +9
The spatial fluctuations of the extragalactic background light trace the total emission from all stars and galaxies in the Universe. A multi-wavelength study can be used to measure…
Shadow of a Colossus: A z=2.45 Galaxy Protocluster Detected in 3D Ly-a Forest Tomographic Mapping of the COSMOS Field
Khee-Gan Lee, Joseph F. Hennawi, Martin White +10
Using moderate-resolution optical spectra from 58 background Lyman-break galaxies and quasars at within a area of the COSMOS field ($\sim 1200\,\ma…
Cosmic Reionization after Planck: Could Quasars Do It All?
Piero Madau, Francesco Haardt
We assess a model of late cosmic reionization in which the ionizing background radiation arises entirely from high redshift quasars and other active galactic nuclei (AGNs). The low…
The Keck+Magellan Survey for Lyman Limit Absorption III: Sample Definition and Column Density Measurements
J. Xavier Prochaska, John M. O'Meara, Michele Fumagalli +2
We present an absorption-line survey of optically thick gas clouds -- Lyman Limit Systems (LLSs) -- observed at high dispersion with spectrometers on the Keck and Magellan telescop…
The Neutral Hydrogen Cosmological Mass Density at z=5
Neil H. M. Crighton, Michael T. Murphy, J. Xavier Prochaska +8
We present the largest homogeneous survey of damped Lyman- systems (DLAs) using the spectra of 163 QSOs that comprise the Giant Gemini GMOS (GGG) survey. With this surve…
Towards the statistical detection of the warm-hot intergalactic medium in inter-cluster filaments of the cosmic web
Nicolas Tejos, J. Xavier Prochaska, Neil H. M. Crighton +6
Modern analyses of structure formation predict a universe tangled in a 'cosmic web' of dark matter and diffuse baryons. These theories further predict that at low-z, a significant…
The First Data Release of the KODIAQ Survey
J. M. O'Meara, N. Lehner, J. C. Howk +6
We present and make publicly available the first data release (DR1) of the Keck Observatory Database of Ionized Absorption toward Quasars (KODIAQ) survey. The KODIAQ survey is aime…
Reionization after Planck: The Derived Growth of the Cosmic Ionizing Emissivity now matches the Growth of the Galaxy UV Luminosity Density
R. J. Bouwens, G. D. Illingworth, P. A. Oesch +4
Thomson optical depth tau measurements from Planck provide new insights into the reionization of the universe. In pursuit of model-independent constraints on the properties of the…
Asymmetric condensed dark matter
Anthony Aguirre, Alberto Diez-Tejedor
We explore the viability of a boson dark matter candidate with an asymmetry between the number densities of particles and antiparticles. A simple thermal field theory analysis conf…
The extragalactic background light, the Hubble constant, and anomalies: conclusions from 20 years of TeV gamma-ray observations
Jonathan Biteau, David A. Williams
Ground-based observatories have been collecting 0.2 - 20 TeV gamma rays from blazars for about twenty years. These gamma rays can experience absorption along the line of sight due…