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I. M. Hook
Researcher at University of Oxford
Publications - 77
Citations - 30458
I. M. Hook is an academic researcher from University of Oxford. The author has contributed to research in topics: Redshift & Supernova. The author has an hindex of 37, co-authored 77 publications receiving 28210 citations. Previous affiliations of I. M. Hook include INAF & European Southern Observatory.
Papers
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Proceedings ArticleDOI
Commissioning of a 4Kx4K CCD mosaic and the new ESO FIERA CCD controller at the SUSI-2 imager of the NTT
TL;DR: In this paper, the authors present the characteristics of the new CCD imager, SUSI2, installed at the ESO 3.5 m NTT, which shares the Nasmyth focus A with the new infrared imager-spectrograph SOFI.
Journal ArticleDOI
Looking Beyond Lambda with the Union Supernova Compilation
David Rubin,David Rubin,Eric V. Linder,Eric V. Linder,Marek Kowalski,Greg Aldering,Rahman Amanullah,Rahman Amanullah,K. Barbary,K. Barbary,Natalia Connolly,Kyle S. Dawson,L. Faccioli,L. Faccioli,Vitaliy Fadeyev,Gerson Goldhaber,Gerson Goldhaber,Ariel Goobar,I. M. Hook,Christopher Lidman,J. Meyers,J. Meyers,S. Nobili,Peter Nugent,Reynald Pain,Saul Perlmutter,Saul Perlmutter,Pilar Ruiz-Lapuente,A. L. Spadafora,M. Strovink,M. Strovink,Nao Suzuki,H. Swift,H. Swift +33 more
TL;DR: This paper examined particular classes of scalar field, modified gravity, and phenomenological models to assess whether they are consistent with observations even when their behavior deviates from the cosmological constant Lambda.
Journal ArticleDOI
Evolution in the Volumetric Type Ia Supernova Rate from the Supernova Legacy Survey
Kathy Perrett,Kathy Perrett,Mark Sullivan,A. Conley,Santiago González-Gaitán,Raymond G. Carlberg,D. Fouchez,P. Ripoche,P. Ripoche,James D. Neill,Pierre Astier,David D. Balam,Christophe Balland,Christophe Balland,Stéphane Basa,Julien Guy,D. Hardin,I. M. Hook,I. M. Hook,D. A. Howell,D. A. Howell,Reynald Pain,Nathalie Palanque-Delabrouille,Christopher J. Pritchet,Nicolas Regnault,J. Rich,V. Ruhlmann-Kleider,S. Baumont,S. Baumont,C. Lidman,Saul Perlmutter,Saul Perlmutter,Emma S. Walker +32 more
TL;DR: In this paper, a measurement of the volumetric Type Ia supernova (SN Ia) rate as a function of redshift for the first four years of data from the Canada-France-Hawaii Telescope (CFHT) Supernova Legacy Survey (SNLS) is presented.
Journal ArticleDOI
CLUSTERING OF SUPERNOVA Ia HOST GALAXIES
Raymond G. Carlberg,Mark Sullivan,Mark Sullivan,D. Le Borgne,A. Conley,D. A. Howell,Kathy Perrett,Pierre Astier,David D. Balam,Christophe Balland,S. Basa,D. Hardin,D. Fouchez,Julien Guy,I. M. Hook,Reynald Pain,Christopher J. Pritchet,Nicolas Regnault,J. Rich,Saul Perlmutter +19 more
TL;DR: For the first time, the cross-correlation between Type Ia supernova host galaxies and surrounding field galaxies is measured using the Supernova Legacy Survey sample as discussed by the authors, and it is shown that supernova hosts are correlated an average of 60% more strongly than similarly selected field galaxies over the 3''-100'' range and about a factor of 3 more strongly below 10''.
Posted Content
Cosmology from Type Ia Supernovae
Saul Perlmutter,Greg Aldering,Susana E. Deustua,Sebastien Fabbro,Gerson Goldhaber,Donald E. Groom,Alex G. Kim,M. Y. Kim,R. A. Knop,Peter Nugent,C. R. Pennypacker,Ariel Goobar,Reynald Pain,I. M. Hook,C. Lidman,Rowan 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,H. J. M. Newberg,Warrick J. Couch +27 more
TL;DR: Perlmutter et al. as discussed by the authors presented evidence for a low-mass density/positive cosmological-constant universe that will expand forever, based on observations of a set of 40 high-redshift supernovae.