R
R. A. Schommer
Researcher at Association of Universities for Research in Astronomy
Publications - 49
Citations - 24237
R. A. Schommer is an academic researcher from Association of Universities for Research in Astronomy. The author has contributed to research in topics: Supernova & Galaxy. The author has an hindex of 27, co-authored 49 publications receiving 22693 citations.
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Journal ArticleDOI
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
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
Improved Cosmological Constraints from New, Old, and Combined Supernova Data Sets
Marek Kowalski,David Rubin,David Rubin,Greg Aldering,Rui J. Agostinho,Alexis Amadon,R. Amanullah,C. Balland,Kyle Barbary,Kyle Barbary,G. Blanc,Peter Challis,Alex Conley,Natalia Connolly,R. Covarrubias,Kyle S. Dawson,Susana E. Deustua,Richard S. Ellis,Sebastien Fabbro,Vitaliy Fadeyev,Xiaohui Fan,B. Farris,Gastón Folatelli,Brenda Frye,G. Garavini,Elinor L. Gates,Gerson Goldhaber,Gerson Goldhaber,Bertrand Goldman,Ariel Goobar,Donald E. Groom,J. Haissinski,D. Hardin,I. M. Hook,Steve Kent,A. G. Kim,R. A. Knop,Christopher Lidman,Eric V. Linder,Javier Méndez,J. Meyers,J. Meyers,G. J. Miller,M. Moniez,A. Mourao,Heidi Jo Newberg,S. Nobili,Peter Nugent,Reynald Pain,O. Perdereau,Saul Perlmutter,Saul Perlmutter,Mark M. Phillips,V. Prasad,R. M. Quimby,Nicolas Regnault,J. Rich,E. P. Rubenstein,Pilar Ruiz-Lapuente,F. D. Santos,B. E. Schaefer,R. A. Schommer,Robert Connon Smith,Alicia M. Soderberg,A. L. Spadafora,Louis-Gregory Strolger,M. Strovink,M. Strovink,Nicholas B. Suntzeff,Nao Suzuki,R. C. Thomas,Nicholas A. Walton,Lian-Tao Wang,W. M. Wood-Vasey,Joao Lin Yun +74 more
TL;DR: A new compilation of Type Ia supernovae (SNe Ia), a new data set of low-redshift nearby-Hubble-flow SNe, and new analysis procedures to work with these heterogeneous compilations is presented in this article.
Journal ArticleDOI
The High-Z Supernova Search: Measuring Cosmic Deceleration and Global Curvature of the Universe Using Type Ia Supernovae*
Brian P. Schmidt,Nicholas B. Suntzeff,Mark M. Phillips,R. A. Schommer,Alejandro Clocchiatti,Alejandro Clocchiatti,Robert P. Kirshner,Peter M. Garnavich,Peter Challis,Bruno Leibundgut,Jason Spyromilio,Adam G. Riess,Adam G. Riess,Alexei V. Filippenko,Mario Hamuy,R. Chris Smith,R. Chris Smith,Craig J. Hogan,Christopher W. Stubbs,Alan H. Diercks,David J Reiss,R. L. Gilliland,John L. Tonry,José Maza,Alan Dressler,Jeremy R. Walsh,Robin Ciardullo +26 more
TL;DR: The High-Z Supernova Search (HSSS) as mentioned in this paper is an international collaboration to discover and monitor Type Ia supernovae (SNe Ia) at z > 0.2 with the aim of measuring cosmic deceleration and global curvature.
Journal ArticleDOI
Constraints on Cosmological Models from Hubble Space Telescope Observations of High-z Supernovae
Peter M. Garnavich,Robert P. Kirshner,P. Challis,John L. Tonry,R. L. Gilliland,R. C. Smith,Alejandro Clocchiatti,Alan H. Diercks,Alexei V. Filippenko,Mario Hamuy,Craig J. Hogan,Bruno Leibundgut,Mark M. Phillips,David J Reiss,Adam G. Riess,Brian P. Schmidt,R. A. Schommer,Jason Spyromilio,Christopher W. Stubbs,Nicholas B. Suntzeff,L. Wells +20 more
TL;DR: In this paper, the authors used HST photometry with ground-based discovery for three supernovae: Type Ia supernova near z ≈ 0.5 (SN 1997ce, SN 1997cj) and a third event at z = 0.97 (SN1997ck).