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2015•Americanae (AECID Library)Open access

Photometric redshifts and clustering of emission line galaxies selected jointly by DES and eBOSS

S. Jouvel, Timothée Delubac, Johan Comparat, Carnero, A., H. Camacho, Filipe Batoni Abdalla, Kneib, J-P, A. Merson, M. Lima, F. Sobreira, Luiz Nicolaci da Costa, Francisco Prada, Guangtun Zhu, A. Benoit-Lévy, A. de La Macora, N. Kuropatkin, Huey-Wen Lin, T. M. C. Abbott, S. Allam, M. Banerji, E. Bertin, D. Brooks, Diego Capozzi, M. Carrasco Kind, J. Carretero, Francisco Javier Castander, C. E. Cunha, S. Desai, P. Doel, T. F. Eifler, Juan Estrada, A. Fausti Neto, B. Flaugher, P. Fosalba, Joshua A. Frieman, ENRIQUE GAZTAÑAGA, D. W. Gerdes, Daniel Gruen, R. A. Gruendl, Gaston Gutierrez, K. Honscheid, David J. James, Kyler Kuehn, O. Lahav, T.S. Li, M. A. G. Maia, Marisa Cristina March, JL Marshall, R. Miquel, Will J. Percival, Plazas, A. A., Kevin A. Reil, A. Kathy Romer, A. Roodman, Eli S Rykoff, M. Sako, Eusebio Sanchez, B. Santiago, V. Scarpine, Ignacio Sevilla-Noarbe, Matthew Santos, Eric Suchyta, Gregory Tarlé, J. Thaler, D. Thomas, Alistair R. Walker, Y. Zhang, Joel R. Brownstein

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Abstract

We present the results of the first test plates of the extended Baryon Oscillation Spectroscopic Survey. This paper focuses on the emission line galaxies (ELG) population targetted from the Dark Energy Survey (DES) photometry. We analyse the success rate, efficiency, redshift distribution, and clustering properties of the targets. From the 9000 spectroscopic redshifts targetted, 4600 have been selected from the DES photometry. The total success rate for redshifts between 0.6 and 1.2 is 71\% and 68\% respectively for a bright and faint, on average more distant, samples including redshifts measured from a single strong emission line. We find a mean redshift of 0.8 and 0.87, with 15 and 13\% of unknown redshifts respectively for the bright and faint samples. In the redshift range 0.6

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What this paper is about

We present the results of the first test plates of the extended Baryon Oscillation Spectroscopic Survey. This paper focuses on the emission line galaxies (ELG) population targetted from the Dark Energy Survey (DES) photometry. We analyse the success rate, efficiency, redshift distribution, and clustering properties of the targets. From the 9000 spectroscopic redshifts targetted, 4600 have been selected from the DES photometry. The total success rate for redshifts between 0.6 and 1.2 is 71\% and 68\% respectively for a bright and faint, on average more distant, samples including redshifts measured from a single strong emission line. We find a mean redshift of 0.8 and 0.87, with 15 and 13\% of unknown redshifts respectively for the bright and faint samples. In the redshift range 0.6

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Available abstract

We present the results of the first test plates of the extended Baryon Oscillation Spectroscopic Survey. This paper focuses on the emission line galaxies (ELG) population targetted from the Dark Energy Survey (DES) photometry. We analyse the success rate, efficiency, redshift distribution, and clustering properties of the targets. From the 9000 spectroscopic redshifts targetted, 4600 have been selected from the DES photometry. The total success rate for redshifts between 0.6 and 1.2 is 71\% and 68\% respectively for a bright and faint, on average more distant, samples including redshifts measured from a single strong emission line. We find a mean redshift of 0.8 and 0.87, with 15 and 13\% of unknown redshifts respectively for the bright and faint samples. In the redshift range 0.6

Key concepts: Redshift, Astrophysics, Physics, Galaxy, Photometry (optics), Population, Photometric redshift, Astronomy

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Photometric redshifts and clustering of emission line galaxies selected jointly by DES and eBOSS — Research Paper | ScholarLens