R
Richard S. Ellis
Researcher at University College London
Publications - 904
Citations - 143995
Richard S. Ellis is an academic researcher from University College London. The author has contributed to research in topics: Galaxy & Redshift. The author has an hindex of 169, co-authored 882 publications receiving 136011 citations. Previous affiliations of Richard S. Ellis include European Southern Observatory & Stockholm University.
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Journal ArticleDOI
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.
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 2dF Galaxy Redshift Survey: spectra and redshifts
Matthew Colless,Gavin Dalton,Stephen J. Maddox,William J. Sutherland,Peder Norberg,Shaun Cole,Joss Bland-Hawthorn,Terry J. Bridges,Russell D. Cannon,Chris A. Collins,Warrick J. Couch,Nicholas Cross,K. Deeley,Roberto De Propris,Simon P. Driver,George Efstathiou,Richard S. Ellis,Carlos S. Frenk,Karl Glazebrook,Carole Jackson,Ofer Lahav,Ian Lewis,Stuart Lumsden,Darren Madgwick,John A. Peacock,Bruce A. Peterson,Ian Price,M. Seaborne,Keith Taylor +28 more
TL;DR: The 2dF Galaxy Redshift Survey (2dFGRS) as mentioned in this paper uses the 2DF multifibre spectrograph on the Anglo-Australian Telescope, which is capable of observing 400 objects simultaneously over a 2° diameter field.
Journal ArticleDOI
Discovery of a supernova explosion at half the age of the Universe
Saul Perlmutter,Saul Perlmutter,Greg Aldering,M. Della Valle,S. Deustua,S. Deustua,Richard S. Ellis,Sebastien Fabbro,Andrew S. Fruchter,Gerson Goldhaber,Gerson Goldhaber,Donald E. Groom,I. M. Hook,A. G. Kim,A. G. Kim,M. Y. Kim,R. A. Knop,Christopher Lidman,Richard G. McMahon,Peter Nugent,Reynald Pain,Nino Panagia,C. R. Pennypacker,C. R. Pennypacker,Pilar Ruiz-Lapuente,Bradley E. Schaefer,N. A. Walton +26 more
TL;DR: The most distant spectroscopically confirmed supernova was reported in this paper, and it was found to be similar to nearby type Ia supernovae, which suggests that we may live in a low-mass-density universe.
Journal ArticleDOI
The 2dF Galaxy Redshift Survey: power-spectrum analysis of the final data set and cosmological implications
Shaun Cole,Will J. Percival,John A. Peacock,Peder Norberg,Carlton M. Baugh,Carlos S. Frenk,Ivan K. Baldry,Joss Bland-Hawthorn,Terry J. Bridges,Russell D. Cannon,Matthew Colless,Chris A. Collins,Warrick J. Couch,Nicholas Cross,Nicholas Cross,Gavin Dalton,Vincent R. Eke,Roberto De Propris,Simon P. Driver,George Efstathiou,Richard S. Ellis,Karl Glazebrook,Carole Jackson,Adrian Jenkins,Ofer Lahav,Ian Lewis,Stuart Lumsden,Stephen J. Maddox,Darren Madgwick,Bruce A. Peterson,William J. Sutherland,Keith Taylor +31 more
TL;DR: In this paper, a power-spectrum analysis of the final 2DF Galaxy Redshift Survey (2dFGRS) employing a direct Fourier method is presented, and the covariance matrix is determined using two different approaches to the construction of mock surveys, which are used to demonstrate that the input cosmological model can be correctly recovered.