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The Santa Barbara cluster comparison project: A comparison of cosmological hydrodynamics solutions
We have simulated the formation of an X-ray cluster in a cold dark matter universe using 12 different codes. The codes span the range of numerical techniques and implementations currently in use,
Determination of z ∼ 0.8 neutral hydrogen fluctuations using the 21 cm intensity mapping autocorrelation
The large-scale distribution of neutral hydrogen in the Universe will be luminous through its 21 cm emission. Here, for the first time, we use the auto-power spectrum of 21 cm intensity fluctuations
Simulating Cosmic Reionization at Large Scales I: the Geometry of Reionization
We present the first large-scale radiative transfer simulat ions of cosmic reionization, in a simulation volume of (100 h 1 Mpc) 3 . This is more than a 2 orders of magnitude improvement over
Dense magnetized plasma associated with a fast radio burst
The examination of archival data revealing Faraday rotation in the fast radio burst FRB 110523 is reported, indicating magnetization in the vicinity of the source itself or within a host galaxy.
Measurement of 21 cm brightness fluctuations at z ~ 0.8 in cross-correlation
In this Letter, 21 cm intensity maps acquired at the Green Bank Telescope are cross-correlated with large-scale structure traced by galaxies in the WiggleZ Dark Energy Survey. The data span the
An intensity map of hydrogen 21-cm emission at redshift z ≈ 0.8
A three-dimensional 21-cm intensity field is reported and neutral-hydrogen emission from the volumes surrounding about 10,000 galaxies (from the DEEP2 optical galaxy redshift survey) is co-added to detect the aggregate 21- cm glow at a significance of ∼4σ.
Normalizing the Temperature Function of Clusters of Galaxies
We reexamine the constraints that can be robustly obtained from the observed temperature function of X-ray studies of cluster of galaxies. The cluster mass function has been thoroughly and
A simulation-calibrated limit on the H i power spectrum from the GMRT Epoch of Reionization experiment
The Giant Metrewave Radio Telescope Epoch of Reionization experiment is an ongoing effort to measure the power spectrum from neutral hydrogen at high redshift. We have previously reported an upper
A repeating fast radio burst source localized to a nearby spiral galaxy
Only one repeating fast radio burst has been localized, to an irregular dwarf galaxy; now another is found to come from a star-forming region of a nearby spiral galaxy, suggesting that repeating FRBs may have a wide range of luminosities, and originate from diverse host galaxies and local environments.
Likelihood analysis of cosmic shear on simulated and VIRMOS-DESCART data
We present a maximum likelihood analysis of cosmological parameters from measurements of the aperture mass up to 35 arcmin using simulated and real cosmic shear data. A four-dimensional parameter