C
Christopher Lidman
Researcher at Australian Astronomical Observatory
Publications - 123
Citations - 28849
Christopher Lidman is an academic researcher from Australian Astronomical Observatory. The author has contributed to research in topics: Galaxy & Redshift. The author has an hindex of 45, co-authored 123 publications receiving 26889 citations. Previous affiliations of Christopher Lidman include Australian National University & European Southern Observatory.
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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
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
New Constraints on ΩM, ΩΛ, and w from an Independent Set of 11 High-Redshift Supernovae Observed with the Hubble Space Telescope*
R. A. Knop,R. A. Knop,Greg Aldering,Greg Aldering,Rahman Amanullah,Pierre Astier,G. Blanc,G. Blanc,M. S. Burns,A. Conley,A. Conley,Susana E. Deustua,Susana E. Deustua,Mamoru Doi,Richard S. Ellis,Sebastien Fabbro,Sebastien Fabbro,Gastón Folatelli,A. S. Fruchter,G. Garavini,S. Garmond,S. Garmond,K. Garton,R. Gibbons,Gerson Goldhaber,Gerson Goldhaber,Ariel Goobar,Donald E. Groom,Donald E. Groom,D. Hardin,I. M. Hook,Dale Andrew Howell,A. G. Kim,A. G. Kim,Brian C. Lee,Christopher Lidman,Javier Méndez,S. Nobili,Peter Nugent,Peter Nugent,Reynald Pain,Nino Panagia,C. R. Pennypacker,Saul Perlmutter,Robert Quimby,J. Raux,N. Regnault,N. Regnault,Pilar Ruiz-Lapuente,G. Sainton,Bradley E. Schaefer,K. Schahmaneche,E. Smith,A. L. Spadafora,Vallery Stanishev,Mark Sullivan,Mark Sullivan,Nicholas A. Walton,Lifan Wang,W. M. Wood-Vasey,W. M. Wood-Vasey,Naoki Yasuda +61 more
TL;DR: In this paper, a set of high-redshift supernovae were used to confirm previous supernova evidence for an accelerating universe, and the supernova results were combined with independent flat-universe measurements of the mass density from CMB and galaxy redshift distortion data, they provided a measurement of $w=-1.05^{+0.15}-0.09$ if w is assumed to be constant in time.
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
A star in a 15.2-year orbit around the supermassive black hole at the centre of the Milky Way
Rainer Schödel,T. Ott,Reinhard Genzel,Reiner Hofmann,Matt Lehnert,Andreas Eckart,Nelly Mouawad,Tal Alexander,Mark J. Reid,Rainer Lenzen,Markus Hartung,Francois Lacombe,Daniel Rouan,Eric Gendron,Gérard Rousset,Anne-Marie Lagrange,Wolfgang Brandner,N. Ageorges,Christopher Lidman,A. F. M. Moorwood,Jason Spyromilio,Norbert Hubin,Karl M. Menten +22 more
TL;DR: Ten years of high-resolution astrometric imaging allow us to trace two-thirds of the orbit of the star currently closest to the compact radio source (and massive black-hole candidate) Sagittarius A* and show that the star is on a bound, highly elliptical keplerian orbit around Sgr A*.