P
Pierre Gratier
Researcher at Centre national de la recherche scientifique
Publications - 150
Citations - 7042
Pierre Gratier is an academic researcher from Centre national de la recherche scientifique. The author has contributed to research in topics: Galaxy & Molecular cloud. The author has an hindex of 45, co-authored 141 publications receiving 6189 citations. Previous affiliations of Pierre Gratier include University of Bordeaux & École Normale Supérieure.
Papers
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Journal ArticleDOI
The CO-to-H2 Conversion Factor from Infrared Dust Emission across the Local Group
Adam K. Leroy,Alberto D. Bolatto,Karl D. Gordon,Karin Sandstrom,Pierre Gratier,Erik Rosolowsky,Charles W. Engelbracht,N. Mizuno,Edvige Corbelli,Yasuo Fukui,Akiko Kawamura +10 more
TL;DR: In this paper, the authors estimate the conversion factor relating CO emission to H2 mass, αCO, in five Local Group galaxies that span approximately an order of magnitude in metallicity.
Journal ArticleDOI
The CO-to-H2 Conversion Factor From Infrared Dust Emission Across the Local Group
Adam K. Leroy,Alberto D. Bolatto,Karl D. Gordon,Karin Sandstrom,Pierre Gratier,Erik Rosolowsky,Charles W. Engelbracht,N. Mizuno,Edvige Corbelli,Yasuo Fukui,Akiko Kawamura +10 more
TL;DR: In this paper, the authors modeled the dust mass along the line of sight from infrared (IR) emission and then solved for the alpha-CO that best allows a single gas-to-dust ratio (delta_GDR) to describe each system.
Journal ArticleDOI
The 2014 kida network for interstellar chemistry
Valentine Wakelam,Jean-Christophe Loison,E. Herbst,B. Pavone,Astrid Bergeat,K. Béroff,Marin Chabot,Alexandre Faure,Alexandre Faure,Daniele Galli,Wolf D. Geppert,Dieter Gerlich,Pierre Gratier,Nanase Harada,Kevin M. Hickson,Pascal Honvault,Pascal Honvault,Stephen J. Klippenstein,S. D. Le Picard,Gunnar Nyman,M. Ruaud,Stephan Schlemmer,Ian R. Sims,D. Talbi,Jonathan Tennyson,Roland Wester +25 more
TL;DR: In this paper, the authors used a network of chemical reactions and associated rate coefficients to study the chemical composition of the gas and the ices in the interstellar medium, which is based on the network of reactions.
Journal ArticleDOI
The 2014 KIDA network for interstellar chemistry
Valentine Wakelam,Jean-Christophe Loison,E. Herbst,B. Pavone,Astrid Bergeat,K. Béroff,Marin Chabot,Alexandre Faure,Alexandre Faure,Daniele Galli,Wolf D. Geppert,Dieter Gerlich,Pierre Gratier,Nanase Harada,Kevin M. Hickson,Pascal Honvault,Pascal Honvault,Stephen J. Klippenstein,S. D. Le Picard,Gunnar Nyman,M. Ruaud,Stephan Schlemmer,Ian R. Sims,D. Talbi,Jonathan Tennyson,Roland Wester +25 more
TL;DR: In this paper, a new updated version of the kida.uva public gas-phase network is presented, which is based on a network of chemical reactions and associated rate coefficients.
Journal ArticleDOI
Molecular and Atomic Gas in the Local Group Galaxy M33
Pierre Gratier,J. Braine,Nemesio Rodriguez-Fernandez,K. F. Schuster,C. Kramer,Emmanuel M. Xilouris,Fatemeh Tabatabaei,Carsten Henkel,Edvige Corbelli,Frank P. Israel,P. van der Werf,D. Calzetti,Santiago García-Burillo,Albrecht Sievers,Francoise Combes,Tommy Wiklind,N. Brouillet,Fabrice Herpin,Sylvain Bontemps,Susanne Aalto,B. S. Koribalski,F. F. S. van der Tak,Martina C. Wiedner,M. Roellig,Bhaswati Mookerjea +24 more
TL;DR: In this paper, high resolution large scale observations of the molecular and atomic gas in the Local Group Galaxy M33 were carried out using the 30m IRAM telescope in the CO(2-1) line achieving a resolution of 12"x2.6 km/s.