I
I. Gavignaud
Researcher at Andrés Bello National University
Publications - 110
Citations - 13829
I. Gavignaud is an academic researcher from Andrés Bello National University. The author has contributed to research in topics: Galaxy & Redshift. The author has an hindex of 56, co-authored 110 publications receiving 13195 citations. Previous affiliations of I. Gavignaud include University of Nottingham & European Southern Observatory.
Papers
More filters
Journal ArticleDOI
Accurate photometric redshifts for the CFHT legacy survey calibrated using the VIMOS VLT deep survey
O. Ilbert,O. Ilbert,Stéphane Arnouts,H. J. McCracken,M. Bolzonella,E. Bertin,O. Le Fevre,Yannick Mellier,G. Zamorani,R. Pello,A. Iovino,Laurence Tresse,V. Le Brun,D. Bottini,B. Garilli,D. Maccagni,J. P. Picat,Roberto Scaramella,Marco Scodeggio,Gianpaolo Vettolani,A. Zanichelli,C. Adami,S. Bardelli,A. Cappi,Stéphane Charlot,Paolo Ciliegi,T. Contini,Olga Cucciati,Sylvie Foucaud,P. Franzetti,I. Gavignaud,Luigi Guzzo,Bruno Marano,Christian Marinoni,A. Mazure,B. Meneux,R. Merighi,Stéphane Paltani,A. Pollo,Lucia Pozzetti,Mario Radovich,E. Zucca,M. Bondi,Angela Bongiorno,G. Busarello,S. de la Torre,Loretta Gregorini,F. Lamareille,G. Mathez,Paola Merluzzi,V. Ripepi,D. Rizzo,Daniela Vergani +52 more
TL;DR: In this article, photometric redshifts for an uniquely large and deep sample of 522286 objects with AB < 25 in the Canada-France Legacy Survey ''Deep Survey'' fields were presented.
Journal ArticleDOI
Accurate photometric redshifts for the CFHT Legacy Survey calibrated using the VIMOS VLT Deep Survey
O. Ilbert,Stephane Arnouts,H. J. McCracken,M. Bolzonella,E. Bertin,O. Le Fevre,Yannick Mellier,G. Zamorani,R. Pello,A. Iovino,L. Tresse,D. Bottini,B. Garilli,V. Le Brun,D. Maccagni,J. P. Picat,Roberto Scaramella,Marco Scodeggio,Gianpaolo Vettolani,A. Zanichelli,C. Adami,S. Bardelli,A. Cappi,Stéphane Charlot,Paolo Ciliegi,T. Contini,O. Cucciati,Sylvie Foucaud,P. Franzetti,I. Gavignaud,Luigi Guzzo,Bruno Marano,Christian Marinoni,Alain Mazure,B. Meneux,R. Merighi,Stéphane Paltani,A. Pollo,Lucia Pozzetti,Mario Radovich,E. Zucca,M. Bondi,Angela Bongiorno,G. Busarello,S. de la Torre,L. Gregorini,F. Lamareille,G. Mathez,Paola Merluzzi,V. Ripepi,D. Rizzo,D. Vergani +51 more
TL;DR: In this article, photometric redshifts for an uniquely large and deep sample of 522286 objects with i'_{AB}<25 in the Canada-France Legacy Survey ''Deep Survey'' fields, which cover a total effective area of 3.2 deg^2, are presented.
Journal ArticleDOI
A test of the nature of cosmic acceleration using galaxy redshift distortions
Luigi Guzzo,M. Pierleoni,B. Meneux,Enzo Branchini,O. Le Fevre,Christian Marinoni,B. Garilli,J. Blaizot,G. De Lucia,A. Pollo,H. J. McCracken,D. Bottini,V. Le Brun,D. Maccagni,J. P. Picat,Roberto Scaramella,Marco Scodeggio,L. Tresse,Gianpaolo Vettolani,A. Zanichelli,C. Adami,Stephane Arnouts,S. Bardelli,M. Bolzonella,Angela Bongiorno,A. Cappi,Stephane Charlot,Stephane Charlot,Paolo Ciliegi,Thierry Contini,O. Cucciati,S. de la Torre,Klaus Dolag,Sylvie Foucaud,P. Franzetti,I. Gavignaud,O. Ilbert,A. Iovino,F. Lamareille,Bruno Marano,Alain Mazure,P. Memeo,R. Merighi,Lauro Moscardini,Stéphane Paltani,R. Pello,Enrique Perez-Montero,Lucia Pozzetti,Mario Radovich,D. Vergani,G. Zamorani,E. Zucca +51 more
TL;DR: Using a new survey of more than 10,000 faint galaxies, the anisotropy parameter β = 0.70 ± 0.26 is measured, which is consistent with the standard cosmological-constant model with low matter density and flat geometry, although the error bars are still too large to distinguish among alternative origins for the accelerated expansion.
Journal ArticleDOI
The VIMOS VLT deep survey. First epoch VVDS-deep survey: 11 564 spectra with 17.5 ≤ IAB ≤ 24, and the redshift distribution over 0 ≤ z ≤ 5
O. Le Fevre,G. Vettolani,B. Garilli,L. Tresse,D. Bottini,V. Le Brun,D. Maccagni,J. P. Picat,Roberto Scaramella,Marco Scodeggio,A. Zanichelli,C. Adami,Magda Arnaboldi,Stephane Arnouts,S. Bardelli,M. Bolzonella,A. Cappi,Stephane Charlot,Stephane Charlot,Paolo Ciliegi,Thierry Contini,Sylvie Foucaud,P. Franzetti,I. Gavignaud,Luigi Guzzo,O. Ilbert,O. Ilbert,A. Iovino,H. J. McCracken,Bruno Marano,Christian Marinoni,Christian Marinoni,G. Mathez,Alain Mazure,B. Meneux,R. Merighi,S. Paltani,R. Pello,A. Pollo,Lucia Pozzetti,Mario Radovich,G. Zamorani,E. Zucca,M. Bondi,Angela Bongiorno,G. Busarello,F. Lamareille,Yannick Mellier,Paola Merluzzi,V. Ripepi,D. Rizzo +50 more
TL;DR: The first epoch sample from the VIMOS VLT Deep Survey (VVDS) was presented in this article, where a total of 11564 objects have been observed over a total area of 0.61deg 2, selected solely on the basis of apparent magnitude 17.5.
Journal ArticleDOI
The VIMOS VLT Deep Survey - First epoch VVDS-Deep survey: 11564 spectra with 17.5<=IAB<=24, and the redshift distribution over 0< z <=5
O. Le Fevre,G. Vettolani,B. Garilli,L. Tresse,D. Bottini V. Le Brun,D. Maccagni,J. P. Picat,R. Scaramella,Marco Scodeggio,A. Zanichelli,C. Adami,S. Bardelli,M. Bolzonella,A. Cappi,Stéphane Charlot,T. Contini,Sylvie Foucaud,P. Franzetti,I. Gavignaud,Luigi Guzzo,O. Ilbert,A. Iovino,H. J. McCracken,Bruno Marano,C. Marinoni,G. Mathez,Alain Mazure,B. Meneux,R. Merighi,S. Paltani,R. Pello,A. Pollo,Lucia Pozzetti,M. Radovich,G. Zamorani,E. Zucca,M. Bondi,Angela Bongiorno,G. Busarello,Paolo Ciliegi,Yannick Mellier,Paola Merluzzi,V. Ripepi,D. Rizzo +43 more
TL;DR: The first epoch sample from the VIMOS VLT Deep Survey (VVDS) was presented in this article, where the authors presented the first time the redshift distribution of a magnitude limited spectroscopic sample down to IAB=24.4.