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Y. R. Rahal
Researcher at University of Paris
Publications - 17
Citations - 1533
Y. R. Rahal is an academic researcher from University of Paris. The author has contributed to research in topics: Gravitational microlensing & Stars. The author has an hindex of 9, co-authored 17 publications receiving 1324 citations. Previous affiliations of Y. R. Rahal include University of Paris-Sud.
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Journal ArticleDOI
Limits on the Macho Content of the Galactic Halo from the EROS-2 Survey of the Magellanic Clouds
P. Tisserand,L. Le Guillou,C. Afonso,J. N. Albert,Johannes Andersen,Reza Ansari,Éric Aubourg,P. Bareyre,Jean-Philippe Beaulieu,X. Charlot,Ch. Coutures,Ch. Coutures,Roger Ferlet,Pascal Fouqué,J. F. Glicenstein,Bertrand Goldman,Andrew Gould,David S. Graff,M. Gros,J. Haissinski,C. Hamadache,J. de Kat,Thierry Lasserre,E. Lesquoy,E. Lesquoy,C. Loup,C. Magneville,J. B. Marquette,E. Maurice,Anaëlle Maury,A. Milsztajn,Marc Moniez,Nathalie Palanque-Delabrouille,O. Perdereau,Y. R. Rahal,J. Rich,Michel Spiro,Alfred Vidal-Madjar,L. Vigroux,L. Vigroux,S. Zylberajch +40 more
TL;DR: The EROS-2 project was designed to test the hypothesis that massive compact halo objects (the so-called ''machos'') could be a major component of the dark matter halo of the Milky Way galaxy.
Journal ArticleDOI
Limits on Galactic dark matter with 5 years of EROS SMC data
C. Afonso,C. Afonso,C. Afonso,J. N. Albert,Johannes Andersen,R. Ansari,Éric Aubourg,P. Bareyre,P. Bareyre,Jean-Philippe Beaulieu,G. Blanc,X. Charlot,F. Couchot,Ch. Coutures,Roger Ferlet,P. Fouque,J. F. Glicenstein,Bertrand Goldman,Bertrand Goldman,Bertrand Goldman,Andrew Gould,Andrew Gould,David S. Graff,M. Gros,J. Haissinski,C. Hamadache,J. de Kat,Thierry Lasserre,L. Le Guillou,É. Lesquoy,É. Lesquoy,C. Loup,Christophe Magneville,J. B. Marquette,E. Maurice,Anaëlle Maury,A. Milsztajn,M. Moniez,Nathalie Palanque-Delabrouille,O. Perdereau,L. Prevot,Y. R. Rahal,J. Rich,Michel Spiro,P. Tisserand,Alfred Vidal-Madjar,L. Vigroux,S. Zylberajch +47 more
TL;DR: In this article, the authors used EROS data towards the Small Magellanic Cloud (SMC) to search for gravitational microlensing events, using a new, more accurate method to assess the impact of stellar blending on the efficiency.
Journal ArticleDOI
Galactic Bulge microlensing optical depth from EROS-2
C. Hamadache,L. Le Guillou,P. Tisserand,C. Afonso,J. N. Albert,Johannes Andersen,Reza Ansari,Éric Aubourg,P. Bareyre,Jean-Philippe Beaulieu,X. Charlot,Ch. Coutures,Ch. Coutures,Roger Ferlet,Pascal Fouqué,J. F. Glicenstein,Bertrand Goldman,Andrew Gould,David S. Graff,M. Gros,J. Haissinski,J. de Kat,E. Lesquoy,E. Lesquoy,C. Loup,C. Magneville,J. B. Marquette,E. Maurice,Anaëlle Maury,A. Milsztajn,Marc Moniez,Nathalie Palanque-Delabrouille,O. Perdereau,Y. R. Rahal,J. Rich,Michel Spiro,Alfred Vidal-Madjar,L. Vigroux,L. Vigroux,S. Zylberajch +39 more
TL;DR: In this paper, a new EROS-2 measurement of the optical depth toward the Galactic Bulge was presented, with light curves of $5.6\times 10^{6}$ clump-giant stars distributed over $66 \deg^2$ of the Bulge during seven Bulge seasons.
Journal ArticleDOI
Limits on the Macho Content of the Galactic Halo from the EROS-2 Survey of the Magellanic Clouds
P. Tisserand,L. Le Guillou,C. Afonso,J. N. Albert,Johannes Andersen,Reza Ansari,Éric Aubourg,P. Bareyre,Jean-Philippe Beaulieu,X. Charlot,Ch. Coutures,Ch. Coutures,Roger Ferlet,Pascal Fouqué,J. F. Glicenstein,Bertrand Goldman,Andrew Gould,David S. Graff,M. Gros,J. Haissinski,C. Hamadache,J. de Kat,Thierry Lasserre,E. Lesquoy,E. Lesquoy,C. Loup,C. Magneville,J. B. Marquette,E. Maurice,Anaëlle Maury,A. Milsztajn,Marc Moniez,Nathalie Palanque-Delabrouille,O. Perdereau,Y. R. Rahal,J. Rich,Michel Spiro,Alfred Vidal-Madjar,L. Vigroux,L. Vigroux,S. Zylberajch +40 more
TL;DR: The EROS-2 project was designed to test the hypothesis that massive compact halo objects (the so-called ''machos'') could be a major component of the dark matter halo of the Milky Way galaxy as discussed by the authors.
Journal ArticleDOI
Type Ia supernova rate at a redshift of ~;0.1
Guillermo A. Blanc,C. Afonso,C. Alard,J. N. Albert,Greg Aldering,Alexis Amadon,Johannes Andersen,R. Ansari,Éric Aubourg,Christophe Balland,P. Bareyre,Jean-Philippe Beaulieu,X. Charlot,Alex Conley,Ch. Coutures,Tomas Dahlen,F. Derue,Xiaohui Fan,Roger Ferlet,Gastón Folatelli,Pascal Fouqué,G. Garavini,J. F. Glicenstein,Bertrand Goldman,Ariel Goobar,Andrew Gould,David S. Graff,M. Gros,J. Haissinski,C. Hamadache,D. Hardin,I. M. Hook,J. deKat,Stephen M. Kent,A. Kim,Thierry Lasserre,L. LeGuillou,E. Lesquoy,C. Loup,C. Magneville,J. B. Marquette,E. Maurice,Anaëlle Maury,A. Milsztajn,M. Moniez,M. Mouchet,Heidi Jo Newberg,S. Nobili,Nathalie Palanque-Delabrouille,O. Perdereau,L. Prevot,Y. R. Rahal,Nicolas Regnault,J. Rich,Pilar Ruiz-Lapuente,Michel Spiro,P. Tisserand,Alfred Vidal-Madjar,L. Vigroux,Nicholas A. Walton,S. Zylberajch +60 more
TL;DR: In this paper, Blanc et al. reported a Type Ia supernova supernova rate at a redshift of ∼ 1.12, and showed that the rate of supernova burst was at most 1.5 to 2.5 times the rate at the International Organization of Astronomical Astronomical Organization (IOA).