Showing 2017 · astro-ph.COShow all

62 papers · 2 filters

astro-ph.CO2017★ 46 cited

Dark Energy Survey Year 1 Results: Calibration of redMaGiC Redshift Distributions in DES and SDSS from Cross-Correlations

R. Cawthon, C. Davis, M. Gatti +88

We present calibrations of the redshift distributions of redMaGiC galaxies in the Dark Energy Survey Year 1 (DES Y1) and Sloan Digital Sky Survey (SDSS) DR8 data. These results det…

astro-ph.CO2017★ 43 cited

Dark Energy Survey Year 1 Results: galaxy mock catalogues for BAO

S. Avila, M. Crocce, A. J. Ross +51

Mock catalogues are a crucial tool in the analysis of galaxy surveys data, both for the accurate computation of covariance matrices, and for the optimisation of analysis methodolog…

astro-ph.CO2017★ 36 cited

Dark Energy Survey Year 1 Results: Galaxy Sample for BAO Measurement

M. Crocce, A. J. Ross, I. Sevilla-Noarbe +84

We define and characterise a sample of 1.3 million galaxies extracted from the first year of Dark Energy Survey data, optimised to measure Baryon Acoustic Oscillations in the prese…

astro-ph.CO2017★ 190 cited

Dark Energy Survey Year 1 Results: Measurement of the Baryon Acoustic Oscillation scale in the distribution of galaxies to redshift 1

The Dark Energy Survey Collaboration, T. M. C. Abbott, F. B. Abdalla +109

We present angular diameter distance measurements obtained by locating the BAO scale in the distribution of galaxies selected from the first year of Dark Energy Survey data. We con…

astro-ph.CO2017★ 56 cited

SPIDER: CMB polarimetry from the edge of space

R. Gualtieri, J. P. Filippini, P. A. R. Ade +61

SPIDER is a balloon-borne instrument designed to map the polarization of the millimeter-wave sky at large angular scales. SPIDER targets the B-mode signature of primordial gravitat…

astro-ph.CO2017★ 63 cited

DES meets Gaia: discovery of strongly lensed quasars from a multiplet search

A. Agnello, H. Lin, N. Kuropatkin +69

We report the discovery, spectroscopic confirmation and first lens models of the first two, strongly lensed quasars from a combined search in WISE and Gaia over the DES footprint.…

astro-ph.CO2017★ 69 cited

Complete super-sample lensing covariance in the response approach

Alexandre Barreira, Elisabeth Krause, Fabian Schmidt

We derive the complete super-sample covariance (SSC) of the matter and weak lensing convergence power spectra using the power spectrum response formalism to accurately describe the…

astro-ph.CO2017★ 114 cited

Baryon Content in a Sample of 91 Galaxy Clusters Selected by the South Pole Telescope at 0.2 < z < 1.25

I. Chiu, J. J. Mohr, M. McDonald +89

We estimate total mass (), intracluster medium (ICM) mass () and stellar mass () in a Sunyaev-Zel'dovich effect (SZE) selected sample of 91 ga…

astro-ph.CO2017★ 25 cited

Precise weak lensing constraints from deep high-resolution images: VLT/HAWK-I analysis of the super-massive galaxy cluster RCS2232727.7020437 at

Tim Schrabback, Mischa Schirmer, Remco F. J. van der Burg +16

We demonstrate that deep good-seeing VLT/HAWK-I images complemented with +-band photometry can yield a sensitivity for weak lensing studies of massive galaxy c…

astro-ph.CO2017★ 269 cited

Dark Energy Survey Year 1 Results: A Precise H0 Measurement from DES Y1, BAO, and D/H Data

DES Collaboration, T. M. C. Abbott, F. B. Abdalla +88

We combine Dark Energy Survey Year 1 clustering and weak lensing data with Baryon Acoustic Oscillations (BAO) and Big Bang Nucleosynthesis (BBN) experiments to constrain the Hubble…

astro-ph.CO2017★ 32 cited

Euclid: Superluminous supernovae in the Deep Survey

C. Inserra, R. C. Nichol, D. Scovacricchi +31

In the last decade, astronomers have found a new type of supernova called `superluminous supernovae' (SLSNe) due to their high peak luminosity and long light-curves. These hydrogen…

astro-ph.CO2017★ 1.2k cited

A gravitational-wave standard siren measurement of the Hubble constant

B. P. Abbott, R. Abbott, T. D. Abbott +1308

The detection of GW170817 in both gravitational waves and electromagnetic waves heralds the age of gravitational-wave multi-messenger astronomy. On 17 August 2017 the Advanced LIGO…

astro-ph.CO2017★ 177 cited

Lack of clustering in low-redshift 21-cm intensity maps cross-correlated with 2dF galaxy densities

C. J. Anderson, N. J. Luciw, Y. -C. Li +13

We report results from 21-cm intensity maps acquired from the Parkes radio telescope and cross-correlated with galaxy maps from the 2dF galaxy survey. The data span the redshift ra…

astro-ph.CO2017★ 99 cited

The Splashback Feature around DES Galaxy Clusters: Galaxy Density and Weak Lensing Profiles

C. Chang, E. Baxter, B. Jain +82

Splashback refers to the process of matter that is accreting onto a dark matter halo reaching its first orbital apocenter and turning around in its orbit. The cluster-centric radiu…

astro-ph.CO2017★ 98 cited

Density split statistics: joint model of counts and lensing in cells

O. Friedrich, D. Gruen, J. DeRose +71

We present density split statistics, a framework that studies lensing and counts-in-cells as a function of foreground galaxy density, thereby providing a large-scale measurement of…

astro-ph.CO2017★ 121 cited

Density split statistics: Cosmological constraints from counts and lensing in cells in DES Y1 and SDSS data

D. Gruen, O. Friedrich, E. Krause +93

We derive cosmological constraints from the probability distribution function (PDF) of evolved large-scale matter density fluctuations. We do this by splitting lines of sight by de…

astro-ph.CO2017★ 158 cited

Weak lensing shear calibration with simulations of the HSC survey

Rachel Mandelbaum, François Lanusse, Alexie Leauthaud +8

We present results from a set of simulations designed to constrain the weak lensing shear calibration for the Hyper Suprime-Cam (HSC) survey. These simulations include HSC observin…

astro-ph.CO2017★ 162 cited

Line-Intensity Mapping: 2017 Status Report

Ely D. Kovetz, Marco P. Viero, Adam Lidz +45

Following the first two annual intensity mapping workshops at Stanford in March 2016 and Johns Hopkins in June 2017, we report on the recent advances in theory, instrumentation and…

astro-ph.CO2017★ 21 cited

First Weak-lensing Results from "See Change": Quantifying Dark Matter in the Two Z>1.5 High-redshift Galaxy Clusters SPT-CL J2040-4451 and IDCS J1426+3508

M. James Jee, Jongwan Ko, Saul Perlmutter +4

We present a weak-lensing study of SPT-CLJ2040-4451 and IDCSJ1426+3508 at z=1.48 and 1.75, respectively. The two clusters were observed in our "See Change" program, a HST survey of…

astro-ph.CO2017★ 34 cited

First results on the cluster galaxy population from the Subaru Hyper Suprime-Cam survey. II. Faint end color-magnitude diagrams and radial profiles of red and blue galaxies at

Atsushi J. Nishizawa, Masamue Oguri, Taira Oogi +16

We present a statistical study of the redshift evolution of the cluster galaxy population over a wide redshift range from 0.1 to 1.1, using optically-selected CAMIRA cl…

astro-ph.CO2017★ 80 cited

Dark Energy Survey Year 1 Results: Cross-Correlation Redshifts - Methods and Systematics Characterization

M. Gatti, P. Vielzeuf, C. Davis +104

We use numerical simulations to characterize the performance of a clustering-based method to calibrate photometric redshift biases. In particular, we cross-correlate the weak lensi…

astro-ph.CO2017★ 44 cited

Mitigating Complex Dust Foregrounds in Future CMB Polarization Experiments

Brandon S. Hensley, Philip Bull

Polarized Galactic foregrounds are one of the primary sources of systematic error in measurements of the B-mode polarization of the Cosmic Microwave Background (CMB). Experiments a…

astro-ph.CO2017★ 171 cited

The Atacama Cosmology Telescope: The Two-Season ACTPol Sunyaev-Zel'dovich Effect Selected Cluster Catalog

Matt Hilton, Matthew Hasselfield, Cristóbal Sifón +41

We present a catalog of 182 galaxy clusters detected through the Sunyaev-Zel'dovich effect by the Atacama Cosmology Telescope in a contiguous 987.5 deg field. The clusters we…

astro-ph.CO2017★ 101 cited

OzDES multifibre spectroscopy for the Dark Energy Survey: Three year results and first data release

M. J. Childress, C. Lidman, T. M. Davis +98

We present results for the first three years of OzDES, a six-year programme to obtain redshifts for objects in the Dark Energy Survey (DES) supernova fields using the 2dF fibre pos…