R
R. A. Covarrubias
Researcher at Carnegie Learning
Publications - 19
Citations - 3247
R. A. Covarrubias is an academic researcher from Carnegie Learning. The author has contributed to research in topics: Supernova & Redshift. The author has an hindex of 12, co-authored 19 publications receiving 3172 citations.
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Journal ArticleDOI
Improved Cosmological Constraints from New, Old and Combined Supernova Datasets
M. Kowalski,David Rubin,Greg Aldering,Rui J. Agostinho,Alexis Amadon,Rahman Amanullah,C. Balland,Kyle Barbary,Guillermo A. Blanc,Peter Challis,Alex Conley,Natalia Connolly,R. A. Covarrubias,Kyle S. Dawson,Susana E. Deustua,Richard S. Ellis,Sebastien Fabbro,Vitaliy Fadeyev,Xiaohui Fan,B. Farris,G. Folatelli,Brenda Frye,G. Garavini,Elinor L. Gates,G. Goldhaber,Bertrand Goldman,A. Goobar,D. E. Groom,J. Haissinski,D. Hardin,I. M. Hook,Steve Kent,A. G. Kim,R. A. Knop,C. Lidman,Eric V. Linder,Javier Méndez,J. Meyers,G. J. Miller,M. Moniez,A. Mourao,Heidi Jo Newberg,S. Nobili,Peter Nugent,Reynald Pain,O. Perdereau,Saul Perlmutter,M. M. Phillips,V. Prasad,R. M. Quimby,Nicolas Regnault,Jeffrey A. Rich,E. P. Rubenstein,P. Ruiz-Lapuente,F. D. Santos,B. E. Schaefer,R. A. Schommer,Robert Connon Smith,Alicia M. Soderberg,A. L. Spadafora,M. Strovink,N. B. Suntzeff,Nao Suzuki,R. C. Thomas,N. A. Walton,Lian-Tao Wang,W. M. Wood-Vasey,Joao Lin Yun +67 more
TL;DR: In this article, the authors present a new compilation of Type Ia supernovae (SNe Ia), a new dataset of low-redshift nearby-Hubble-flow SNe and new analysis procedures to work with these heterogeneous compilations.
Journal ArticleDOI
Observational Constraints on the Nature of the Dark Energy: First Cosmological Results from the ESSENCE Supernova Survey
W. M. Wood-Vasey,G. Miknaitis,Christopher W. Stubbs,Saurabh Jha,Adam G. Riess,P. M. Garnavich,Robert P. Kirshner,C. Aguilera,A. C. Becker,J. W. Blackman,Stephane Blondin,P. Challis,A. Clocchiatti,Alex Conley,R. A. Covarrubias,Tamara M. Davis,Alexei V. Filippenko,Ryan J. Foley,Arti Garg,M. Hicken,K. Krisciunas,Bruno Leibundgut,Wenxiong Li,Thomas Matheson,A. Miceli,Gautham Narayan,G. Pignata,J. L. Prieto,Armin Rest,Maria Elena Salvo,Brian P. Schmidt,Robert Connon Smith,Jesper Sollerman,Jason Spyromilio,John L. Tonry,N. B. Suntzeff,Alfredo Zenteno +36 more
TL;DR: In this article, a set of constraints on the dark energy equation-of-state parameter w =P/(rho c^2) were derived for 60 Type Ia supernovae from the ESSENCE supernova survey.
Journal ArticleDOI
The Peculiar Type II Supernova 1997 D: A Case for a Very Low 56Ni Mass
Massimo Turatto,Paolo A. Mazzali,T. R. Young,K. Nomoto,Koichi Iwamoto,S. Benetti,Enrico Cappellaro,I. J. Danziger,Duilia F. de Mello,M. M. Phillips,N. B. Suntzeff,A. Clocchiatti,A. Piemonte,Bruno Leibundgut,R. A. Covarrubias,José Maza,Jesper Sollerman +16 more
TL;DR: In this paper, the authors modeled the light curves and spectra of the explosion of a 26 \M\ star successfully fit the observations and showed that the explosion occurred about 50 days before discovery, and that a plateau probably followed.
Journal ArticleDOI
The Dark Energy Survey Image Processing Pipeline
E. Morganson,Robert A. Gruendl,Felipe Menanteau,M. Carrasco Kind,Y.-C. Chen,G. Daues,Alex Drlica-Wagner,Douglas N. Friedel,M. Gower,M. W. G. Johnson,Michael D. Johnson,Richard Kessler,F. Paz-Chinchón,Don Petravick,C. Pond,B. Yanny,S. Allam,Robert Armstrong,Wayne A. Barkhouse,Keith Bechtol,A. Benoit-Lévy,Gary Bernstein,E. Bertin,E. Buckley-Geer,R. A. Covarrubias,Shantanu Desai,H. T. Diehl,Daniel A. Goldstein,Daniel Gruen,T. S. Li,Huan Lin,J. P. Marriner,Joseph J. Mohr,Eric H. Neilsen,Chow-Choong Ngeow,K. Paech,Eli S. Rykoff,M. Sako,I. Sevilla-Noarbe,Erin Sheldon,Flavia Sobreira,Douglas L. Tucker,W. C. Wester +42 more
TL;DR: The Dark Energy Survey (DES) is a five-year optical imaging campaign with the goal of understanding the origin of cosmic acceleration as discussed by the authors, which performs a 5000 square degree survey of the southern sky in five optical bands (g,r,i,z,Y) to a depth of ~24th magnitude.
Journal ArticleDOI
Spectral Identification of an Ancient Supernova using Light Echoes in the LMC
Armin Rest,Thomas Matheson,Stephane Blondin,M. Bergmann,D. L. Welch,N. B. Suntzeff,Robert Connon Smith,K. A. G. Olsen,J. L. Prieto,Arti Garg,P. Challis,Christopher W. Stubbs,M. Hicken,M. Modjaz,W. M. Wood-Vasey,Alfredo Zenteno,Guillermo Damke,A. Newman,M. E. Huber,K. H. Cook,Sergei Nikolaev,A. C. Becker,A. Miceli,R. A. Covarrubias,Lorenzo Morelli,G. Pignata,A. Clocchiatti,Dante Minniti,Ryan J. Foley +28 more
TL;DR: In this article, the authors reported the successful identification of the type of supernova responsible for the supernova remnant SNR 0509-675 in the Large Magellanic Cloud (LMC) using Gemini spectra of surrounding light echoes.