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Featured researches published by A. M. Pérez-García.


Archive | 2010

Metallicity Estimation Using N2 Method with OSIRIS

M. A. Lara-López; J. Cepa; Hector O. Castaneda; E. J. Alfaro; A. Bongiovanni; M. Fernández; J. Gallego; J. J. González; J. I. González-Serrano; A. M. Pérez-García; M. Pović; M. Sánchez-Portal

The OTELO (OSIRIS Tunable Emission Line Object Survey project) is an emission line survey using the OSIRIS Tunable Filters on the GTC 10.4m telescope (Cepa et al. 2008). Observing in selected atmospheric windows relatively free of sky emission lines, and with a total survey area of 0.1square degree distributed in different fields, it is expected to reach 5 sigma depth of 10−18erg/cm2/s, detecting objects with EW<0.2. OTELO will be the deepest emission line survey to date. As part of the preparatory activities, we have selected from the simulation of OTELO spectra, including errors, the best combination of tunable filters bandwidth (FWHM) and sampling, that will allow deblending Hα from [Nii]λ6,583 lines with a flux error lower than 20%. With the selected instrumental configuration it will be possible to estimate the objects chemical abundances using the N2 method in very low metallicity systems. We estimate that OTELO will allow to estimate the metallicities of more than 3,000 Hα star forming emitters up to a redshift 0.4.


Astronomy and Astrophysics | 2008

OTELO survey: deep BVRI broad-band photometry of the Groth strip I. Number counts and two-point correlation functions

J. Cepa; A. M. Pérez-García; A. Bongiovanni; Emilio J. Alfaro; Hector O. Castaneda; J. Gallego; J. I. González-Serrano; M. Sánchez-Portal; J. Gonzalez

We describe the OTELO survey and present deep BVRI imaging data of the Groth field. Galaxy number counts and galaxy clustering are analyzed. We find an excellent agreement between observed and mock data number counts. We also find a evidences about a galaxy clustering evolution and a strong dependence of the angular correlation function with the observed V−I color. Our data favor a flattening of the clustering amplitude with median apparent magnitude. The good general agreement between our clustering analysis and the estimates from the mock data is remarkable.


Astronomy and Astrophysics | 2008

OTELO survey: deep BVRI broad-band photometry of the Groth strip

J. Cepa; A. M. Pérez-García; A. Bongiovanni; E. J. Alfaro; Hector O. Castaneda; J. Gallego; J. I. González-Serrano; M. Sanchez-Portal; J. J. González


Revista Mexicana De Astronomia Y Astrofisica | 2005

Ly emitters at z 6 in the otelo survey

J. I. González-Serrano; J. Cepa; A. M. Pérez-García; J. Gallego; E. J. Alfaro; M. Sanchez-Portal; J. J. González


Revista Mexicana De Astronomia Y Astrofisica | 2005

QSOs and the survey otelo

J. I. González-Serrano; J. Cepa; J. Gallego; E. J. Alfaro; M. Sanchez-Portal; J. J. González; A. M. Pérez-García


arXiv: Instrumentation and Methods for Astrophysics | 2015

Present and future of the OTELO project

M. Ramón-Pérez; J. Gallego; A. Bongiovanni; A. Ederoclite; M. Sanchez-Portal; J. Cepa; J. J. González; A. M. Pérez-García; Hector O. Castaneda; E. J. Alfaro; J. I. González-Serrano


Revista Mexicana de Astronomía y Astrofísica (México) Vol.24 | 2015

The OTELO Project

J. Cepa; E. J. Alfaro; Joss Bland-Hawthorn; Hector O. Castaneda; J. Gallego; J. I. González-Serrano; J. J. González; D. Heath Jones; A. M. Pérez-García; M. Sanchez-Portal


Revista Mexicana De Astronomia Y Astrofisica | 2007

OTELO: optical data for x-ray sources in the groth strip

M. Sánchez-Portal; A. M. Pérez-García; J. Cepa; J. I. González-Serrano; E. J. Alfaro; Hector O. Castaneda; J. Gallego; J. J. González


Revista Mexicana De Astronomia Y Astrofisica | 2007

OTELO: the stellar component of the groth field

A. M. Pérez-García; E. J. Alfaro; J. Cepa; A. Bongiovanni; Hector O. Castaneda; J. Gallego; J. J. González; J. I. González-Serrano; M. Sanchez-Portal


arXiv: Astrophysics | 2005

XMM-Newton and Deep Optical Observations of the OTELO fields: the Groth-Westphal Strip

M. Sanchez-Portal; A. M. Pérez-García; J. Cepa; Emilio J. Alfaro; Hector O. Castaneda; J. Gallego; J. J. González-González; J. I. González-Serrano

Collaboration


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J. Cepa

University of La Laguna

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J. Gallego

Complutense University of Madrid

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J. I. González-Serrano

Spanish National Research Council

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E. J. Alfaro

Spanish National Research Council

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Hector O. Castaneda

Spanish National Research Council

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M. Sanchez-Portal

Pontifical University of Salamanca

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J. J. González

National Autonomous University of Mexico

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Emilio J. Alfaro

Spanish National Research Council

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