Observational probes of cosmic acceleration
David H. Weinberg,Michael J. Mortonson,Daniel J. Eisenstein,Daniel J. Eisenstein,Christopher M. Hirata,Adam G. Riess,Eduardo Rozo +6 more
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TLDR
In this article, the authors present extensive forecasts for constraints on the dark energy equation of state and parameterized deviations from General Relativity, achievable with Stage III and Stage IV experimental programs that incorporate supernovae, BAO, weak lensing, and cosmic microwave background data.About:
This article is published in Physics Reports.The article was published on 2013-09-10 and is currently open access. It has received 1253 citations till now. The article focuses on the topics: Dark energy & Lambda-CDM model.read more
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Scientific Synergy Between LSST and Euclid
Jason Rhodes,Robert C. Nichol,Éric Aubourg,Rachel Bean,D. Boutigny,Malcolm N. Bremer,Peter Capak,V. F. Cardone,Benoit Carry,Christopher J. Conselice,Andrew J. Connolly,Jean-Charles Cuillandre,Jean-Charles Cuillandre,Nina A. Hatch,George Helou,Shoubaneh Hemmati,Hendrik Hildebrandt,Renée Hložek,Lynne Jones,Steven M. Kahn,Alina Kiessling,Thomas Kitching,Robert H. Lupton,Rachel Mandelbaum,Katarina Markovic,Phil Marshall,Richard Massey,Ben J Maughan,Peter Melchior,Yannick Mellier,Jeffrey A. Newman,Brant Robertson,Marc Sauvage,Tim Schrabback,Graham P. Smith,Michael A. Strauss,Andy Taylor,Anja von der Linden +37 more
TL;DR: This work explores Euclid/LSST synergy, ignoring the political issues associated with data access to focus on the scientific, technical, and financial benefits of coordination, and focuses primarily on dark energy cosmology, but also discusses galaxy evolution, transient objects, solar system science, and galaxy cluster studies.
Journal ArticleDOI
A search for sterile neutrinos with the latest cosmological observations
TL;DR: In this paper, a search for sterile neutrinos with the latest cosmological observations was conducted, and it was shown that the current observational data give a hint of the existence of massless sterile neutrons (as dark radiation) at the 1.44$\sigma level, and the consideration of an extra massless neutrino can indeed relieve the tension between observations and improve the cosmology fit.
Journal ArticleDOI
DES Y1 Results: validating cosmological parameter estimation using simulated Dark Energy Surveys
TL;DR: In this paper, the authors use two suites of simulations produced using different methods, which therefore provide independent tests of their cosmological parameter inference, and they are able to show with high confidence that any biases in the inferred S-8 = sigma(8)(Omega(m)/0.3)(0.5) and Omega(m) are smaller than the DES Y1 1 - sigma uncertainties.
Journal ArticleDOI
On-Sky Measurements of the Transverse Electric Fields’ Effects in the Dark Energy Camera CCDs
TL;DR: In this article, the authors used data from the science verification period of the DES to characterize the effects of electric fields transverse to the surface of the CCDs, with diverse origins such as doping gradients, guard rings around the imaging area of the sensor, and physical stresses on the silicon lattice.
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Constraining the microlensing effect on time delays with a new time-delay prediction model in H0 measurements
Geoff C. F. Chen,James H. H. Chan,Vivien Bonvin,Christopher D. Fassnacht,K. Rojas,M. Millon,Fred Courbin,Sherry H. Suyu,Sherry H. Suyu,Sherry H. Suyu,Kenneth C. Wong,Dominique Sluse,Tommaso Treu,Anowar J. Shajib,J. W. Hsueh,David J. Lagattuta,Léon V. E. Koopmans,Simona Vegetti,John McKean +18 more
TL;DR: In this article, a new technique that uses the cosmological time-delay ratios and simulated microlensing maps within a Bayesian framework was developed to limit the allowed combinations of micro-lensing delays and thus to lessen the uncertainties due to the proposed effect.
References
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Measurements of Omega and Lambda from 42 High-Redshift Supernovae
Saul Perlmutter,Saul Perlmutter,Greg Aldering,Gerson Goldhaber,Gerson Goldhaber,R. A. Knop,Peter Nugent,P. G. Castro,P. G. Castro,Susana E. Deustua,Sebastien Fabbro,Sebastien Fabbro,A. Goobar,A. Goobar,Donald E. Groom,I. M. Hook,I. M. Hook,A. G. Kim,A. G. Kim,A. G. Kim,M. Y. Kim,Julia C. Lee,Julia C. Lee,Nelson J. Nunes,Nelson J. Nunes,Reynald Pain,Reynald Pain,C. R. Pennypacker,C. R. Pennypacker,Robert Quimby,Christopher Lidman,Richard S. Ellis,Mike Irwin,Richard G. McMahon,Pilar Ruiz-Lapuente,Nicholas A. Walton,Bradley E. Schaefer,B. J. Boyle,Alexei V. Filippenko,Thomas Matheson,A. S. Fruchter,Nino Panagia,Nino Panagia,Heidi Jo Newberg,Warrick J. Couch +44 more
TL;DR: In this paper, the mass density, Omega_M, and cosmological-constant energy density of the universe were measured using the analysis of 42 Type Ia supernovae discovered by the Supernova Cosmology project.
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Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
Adam G. Riess,Alexei V. Filippenko,Peter Challis,Alejandro Clocchiatti,Alan H. Diercks,Peter M. Garnavich,R. L. Gilliland,Craig J. Hogan,Saurabh Jha,Robert P. Kirshner,Bruno Leibundgut,Mark M. Phillips,David J Reiss,Brian P. Schmidt,R. A. Schommer,R. Chris Smith,R. Chris Smith,Jason Spyromilio,Christopher W. Stubbs,Nicholas B. Suntzeff,John L. Tonry +20 more
TL;DR: In this article, the authors used spectral and photometric observations of 10 Type Ia supernovae (SNe Ia) in the redshift range 0.16 " z " 0.62.
Journal ArticleDOI
Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
Adam G. Riess,Alexei V. Filippenko,Peter Challis,Alejandro Clocchiattia,Alan H. Diercks,Peter M. Garnavich,R. L. Gilliland,Craig J. Hogan,Saurabh Jha,Robert P. Kirshner,Bruno Leibundgut,Mark M. Phillips,David J Reiss,Brian P. Schmidt,Robert A. Schommer,R. Chris Smith,Jason Spyromilio,Christopher W. Stubbs,Nicholas B. Suntzeff,John L. Tonry +19 more
TL;DR: In this paper, the authors present observations of 10 type Ia supernovae (SNe Ia) between 0.16 0 and 4.0 sigma confidence levels, for two fitting methods respectively.
Journal ArticleDOI
Measurements of Omega and Lambda from 42 High-Redshift Supernovae
Saul Perlmutter,Greg Aldering,G. Goldhaber,R. A. Knop,Peter Nugent,P. G. Castro,Susana E. Deustua,Sebastien Fabbro,A. Goobar,D. E. Groom,I. M. Hook,A. G. Kim,M. Y. Kim,Julia C. Lee,Nelson J. Nunes,Reynald Pain,C. R. Pennypacker,R. M. Quimby,C. Lidman,Richard S. Ellis,Michael G. Irwin,Richard G. McMahon,P. Ruiz-Lapuente,Nicholas A. Walton,Bradley E. Schaefer,B. J. Boyle,Alexei V. Filippenko,Thomas Matheson,A. S. Fruchter,Nino Panagia,Heidi Jo Newberg,W. J. Couch +31 more
TL;DR: In this paper, the mass density, Omega_M, and cosmological-constant energy density of the universe were measured by the analysis of 42 Type Ia supernovae discovered by the Supernova Cosmology Project.
Journal ArticleDOI
The relationship between infrared, optical, and ultraviolet extinction
TL;DR: In this article, the average extinction law over the 3.5 micron to 0.125 wavelength range was derived for both diffuse and dense regions of the interstellar medium. And the validity of the law over a large wavelength interval suggests that the processes which modify the sizes and compositions of grains are stochastic in nature.
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