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Isobel Hook
Researcher at Lancaster University
Publications - 125
Citations - 10628
Isobel Hook is an academic researcher from Lancaster University. The author has contributed to research in topics: Redshift & Galaxy. The author has an hindex of 43, co-authored 125 publications receiving 9499 citations. Previous affiliations of Isobel Hook include INAF & University of California, Berkeley.
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Journal ArticleDOI
Improved cosmological constraints from a joint analysis of the SDSS-II and SNLS supernova samples
Marc Betoule,Richard Kessler,Julien Guy,Julien Guy,J. Mosher,D. Hardin,Rahul Biswas,Pierre Astier,P. El-Hage,M. Konig,Steve Kuhlmann,John Marriner,Reynald Pain,Nicolas Regnault,Christophe Balland,Bruce A. Bassett,Bruce A. Bassett,Peter J. Brown,Heather Campbell,Heather Campbell,Raymond G. Carlberg,F. Cellier-Holzem,D. Cinabro,A. Conley,C. B. D'Andrea,Darren L. DePoy,M. Doi,Richard S. Ellis,Sebastien Fabbro,Alexei V. Filippenko,Ryan J. Foley,Joshua A. Frieman,Joshua A. Frieman,Dominique Fouchez,Lluís Galbany,Lluís Galbany,Ariel Goobar,Ravi R. Gupta,Ravi R. Gupta,Gary J. Hill,Renée Hlozek,Craig J. Hogan,Craig J. Hogan,Isobel Hook,Dale Andrew Howell,Dale Andrew Howell,Saurabh Jha,L. Le Guillou,Giorgos Leloudas,Giorgos Leloudas,C. Lidman,Jennifer L. Marshall,Anais Möller,A. Mourao,J. Neveu,Robert C. Nichol,Matthew D. Olmstead,Nathalie Palanque-Delabrouille,Saul Perlmutter,J. L. Prieto,Christopher J. Pritchet,Michael Richmond,Adam G. Riess,Adam G. Riess,V. Ruhlmann-Kleider,Masao Sako,K. Schahmaneche,D. P. Schneider,M. R. Smith,Jesper Sollerman,Mark Sullivan,Nicholas A. Walton,C. Wheeler +72 more
TL;DR: In this article, the authors presented cosmological constraints from a joint analysis of type Ia supernova (SN Ia) observations obtained by the SDSS-II and SNLS collaborations.
Journal ArticleDOI
A kilonova as the electromagnetic counterpart to a gravitational-wave source
Stephen J. Smartt,Ting-Wan Chen,Anders Jerkstrand,Michael W. Coughlin,Erkki Kankare,Stuart A. Sim,Morgan Fraser,Cosimo Inserra,Kate Maguire,K. C. Chambers,M. E. Huber,Thomas Krühler,Giorgos Leloudas,M. R. Magee,Luke J. Shingles,K. W. Smith,David Young,John L. Tonry,Rubina Kotak,Avishay Gal-Yam,J. D. Lyman,D. Homan,C. Agliozzo,C. Agliozzo,Joseph P. Anderson,C. Angus,Chris Ashall,Cristina Barbarino,Franz E. Bauer,Franz E. Bauer,Franz E. Bauer,Marco Berton,Marco Berton,M. T. Botticella,Mattia Bulla,J. Bulger,Giacomo Cannizzaro,Giacomo Cannizzaro,Zach Cano,Régis Cartier,Aleksandar Cikota,P. Clark,A. De Cia,M. Della Valle,Larry Denneau,M. Dennefeld,Luc Dessart,Georgios Dimitriadis,Nancy Elias-Rosa,R. E. Firth,H. Flewelling,A. Flörs,A. Franckowiak,C. Frohmaier,Lluís Galbany,Santiago González-Gaitán,Jochen Greiner,Mariusz Gromadzki,A. Nicuesa Guelbenzu,Claudia P. Gutiérrez,A. Hamanowicz,A. Hamanowicz,Lorraine Hanlon,Jussi Harmanen,Kasper E. Heintz,Kasper E. Heintz,A. Heinze,M.-S. Hernandez,Simon Hodgkin,Isobel Hook,Luca Izzo,Phil A. James,Peter G. Jonker,Peter G. Jonker,Wolfgang Kerzendorf,S. Klose,Z. Kostrzewa-Rutkowska,Z. Kostrzewa-Rutkowska,Marek Kowalski,Markus Kromer,Markus Kromer,Hanindyo Kuncarayakti,Andy Lawrence,T. Lowe,Eugene A. Magnier,Ilan Manulis,Antonio Martin-Carrillo,Seppo Mattila,O. McBrien,André Müller,Jakob Nordin,D. O'Neill,F. Onori,F. Onori,J. Palmerio,Andrea Pastorello,Ferdinando Patat,G. Pignata,G. Pignata,Ph. Podsiadlowski,Maria Letizia Pumo,Maria Letizia Pumo,S. J. Prentice,Arne Rau,A. Razza,A. Razza,A. Rest,A. Rest,T. M. Reynolds,Rupak Roy,Rupak Roy,Ashley J. Ruiter,Ashley J. Ruiter,Krzysztof A. Rybicki,Lána Salmon,Patricia Schady,A. S. B. Schultz,T. Schweyer,Ivo R. Seitenzahl,Ivo R. Seitenzahl,M. Smith,Jesper Sollerman,B. Stalder,Christopher W. Stubbs,Mark Sullivan,Helene Szegedi,Francesco Taddia,Stefan Taubenberger,Giacomo Terreran,Giacomo Terreran,B. van Soelen,J. Vos,Richard J. Wainscoat,Nicholas A. Walton,Christopher Waters,H. Weiland,Mark Willman,P. Wiseman,Darryl Wright,Łukasz Wyrzykowski,O. Yaron +140 more
TL;DR: Observations and physical modelling of a rapidly fading electromagnetic transient in the galaxy NGC 4993, which is spatially coincident with GW170817, indicate that neutron-star mergers produce gravitational waves and radioactively powered kilonovae, and are a nucleosynthetic source of the r-process elements.
Journal ArticleDOI
Supernova SN 2011fe from an exploding carbon–oxygen white dwarf star
Peter Nugent,Peter Nugent,Mark Sullivan,S. Bradley Cenko,R. C. Thomas,Daniel Kasen,Daniel Kasen,D. Andrew Howell,D. Andrew Howell,D. Bersier,Joshua S. Bloom,Shrinivas R. Kulkarni,M. T. Kandrashoff,Alexei V. Filippenko,Jeffrey M. Silverman,Geoffrey W. Marcy,Andrew W. Howard,Howard Isaacson,Kate Maguire,Nao Suzuki,J. E. Tarlton,Yen-Chen Pan,Lars Bildsten,Benjamin J. Fulton,Benjamin J. Fulton,Jerod T. Parrent,Jerod T. Parrent,David J. Sand,David J. Sand,Philipp Podsiadlowski,Federica B. Bianco,Federica B. Bianco,Benjamin Dilday,Benjamin Dilday,Melissa L. Graham,Melissa L. Graham,J. D. Lyman,Phil A. James,Mansi M. Kasliwal,Nicholas M. Law,Robert M. Quimby,Isobel Hook,Emma S. Walker,Paolo A. Mazzali,Elena Pian,Eran O. Ofek,Eran O. Ofek,Avishay Gal-Yam,Dovi Poznanski,Dovi Poznanski,Dovi Poznanski +50 more
TL;DR: Early observations of type Ia supernova SN 2011fe in the galaxy M101 at a distance from Earth of 6.4 megaparsecs find that the exploding star was probably a carbon–oxygen white dwarf, and from the lack of an early shock it is concluded that the companion was likely a main-sequence star.
Journal ArticleDOI
The type Ia supernova SNLS-03D3bb from a super-Chandrasekhar-mass white dwarf star
D. Andrew Howell,Mark Sullivan,Peter Nugent,Richard S. Ellis,Alex Conley,Damien Le Borgne,Raymond G. Carlberg,Julien Guy,David D. Balam,Stéphane Basa,D. Fouchez,Isobel Hook,Eric Hsiao,James D. Neill,Reynald Pain,K. Perrett,Christopher J. Pritchet +16 more
TL;DR: It is shown that the high-redshift supernova SNLS-03D3bb has an exceptionally high luminosity and low kinetic energy that both imply a super-Chandrasekhar-mass progenitor, which may provide an explanation for the observed trend that overluminous type Ia supernovae occur only in ‘young’ environments.
Journal ArticleDOI
Cosmic Star Formation History and Its Dependence on Galaxy Stellar Mass
Stéphanie Juneau,Stéphanie Juneau,Karl Glazebrook,David Crampton,Patrick J. McCarthy,Sandra Savaglio,Roberto Abraham,Raymond G. Carlberg,Hsiao-Wen Chen,Damien Le Borgne,Ronald O. Marzke,Kathy Roth,Inger Jorgensen,Isobel Hook,Richard Murowinski +14 more
TL;DR: In this paper, the authors examined the cosmic star formation rate and its dependence on galaxy stellar mass over the redshift range 0.8 1010.8 to 1.5 and showed that the formation era for galaxies was extended and proceeded from high-to low-mass systems.