CALIFA: a diameter-selected sample for an integral field spectroscopy galaxy survey

C. J. Walcher, L. Wisotzki, S. Bekeraité, B. Husemann, J. Iglesias-Páramo, N. Backsmann, J. Barrera Ballesteros, C. Catalán-Torrecilla, C. Cortijo, A. del Olmo, B. Garcia Lorenzo, J. Falcón-Barroso, L. Jilkova, V. Kalinova, D. Mast, R. A. Marino, J. Méndez-Abreu, A. Pasquali, S. F. Sánchez, S. TragerS. Zibetti, J. A. L. Aguerri, J. Alves, J. Bland-Hawthorn, A. Boselli, A. Castillo Morales, R. Cid Fernandes, H. Flores, L. Galbany, A. Gallazzi, R. García-Benito, A. Gil de Paz, R. M. González-Delgado, K. Jahnke, B. Jungwiert, C. Kehrig, M. Lyubenova, I. Márquez Perez, J. Masegosa, A. Monreal Ibero, E. Pérez, A. Quirrenbach, F. F. Rosales-Ortega, M. M. Roth, P. Sanchez-Blazquez, K. Spekkens, E. Tundo, G. van de Ven, M. A. W. Verheijen, J. V. Vilchez, B. Ziegler

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Samenvatting

We describe and discuss the selection procedure and statistical properties of the galaxy sample used by the Calar Alto Legacy Integral Field Area (CALIFA) survey, a public legacy survey of 600 galaxies using integral field spectroscopy. The CALIFA "mother sample" was selected from the Sloan Digital Sky Survey (SDSS) DR7 photometric catalogue to include all galaxies with an r-band isophotal major axis between 45'' and 79.2'' and with a redshift 0.005 <z <0.03. The mother sample contains 939 objects, 600 of which will be observed in the course of the CALIFA survey. The selection of targets for observations is based solely on visibility and thus keeps the statistical properties of the mother sample. By comparison with a large set of SDSS galaxies, we find that the CALIFA sample is representative of galaxies over a luminosity range of -19 > Mr > -23.1 and over a stellar mass range between 109.7 and 1011.4 M⊙. In particular, within these ranges, the diameter selection does not lead to any significant bias against - or in favour of - intrinsically large or small galaxies. Only below luminosities of Mr = -19 (or stellar masses
Originele taal-2English
ArtikelnummerA1
Aantal pagina's18
TijdschriftJournal of Astrophysics and Astronomy
Volume569
DOI's
StatusPublished - sep-2014

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