CALIFA, the Calar Alto Legacy Integral Field Area survey. II. First public data release

Author(s)

B. Husemann, K. Jahnke, S. F. Sánchez, D. Barrado, S. Bekerait*error*ė, D. J. Bomans, África Castillo-Morales, C. Catalán-Torrecilla, R. Cid Fernandes, J. Falcón-Barroso, R. García-Benito, R. M. González Delgado, J. Iglesias-Páramo, B. D. Johnson, D. Kupko, R. López-Fernandez, M. Lyubenova, R. A. Marino, D. Mast, A. Miskolczi, A. Monreal-Ibero, A. Gil de Paz, E. Pérez, I. Pérez, F. F. Rosales-Ortega, T. Ruiz-Lara, U. Schilling, G. van de Ven, J. Walcher, J. Alves, A. L. de Amorim, N. Backsmann, J. K. Barrera-Ballesteros, J. Bland-Hawthorn, C. Cortijo, R.-J. Dettmar, M. Demleitner, A. I. Díaz, H. Enke, E. Florido, H. Flores, L. Galbany, A. Gallazzi, B. García-Lorenzo, J. M. Gomes, N. Gruel, T. Haines, L. Holmes, B. Jungwiert, V. Kalinova, C. Kehrig, R. C. Kennicutt, J. Klar, M. D. Lehnert, Á. R. López-Sánchez, A. de Lorenzo-Cáceres, E. Mármol-Queraltó, I. Márquez, J. Mendez-Abreu, M. Mollá, A. del Olmo, S. E. Meidt, P. Papaderos, J. Puschnig, A. Quirrenbach, M. M. Roth, P. Sánchez-Blázquez, K. Spekkens, R. Singh, V. Stanishev, S. C. Trager, J. M. Vilchez, V. Wild, L. Wisotzki, S. Zibetti, B. Ziegler

Abstract

We present the first public data release (DR1) of the Calar Alto Legacy

Integral Field Area (CALIFA) survey. It consists of science-grade

optical datacubes for the first 100 of eventually 600 nearby (0.005 <

z <0.03) galaxies, obtained with the integral-field spectrograph

PMAS/PPak mounted on the 3.5 m telescope at the Calar Alto observatory.

The galaxies in DR1 already cover a wide range of properties in

color-magnitude space, morphological type, stellar mass, and gas

ionization conditions. This offers the potential to tackle a variety of

open questions in galaxy evolution using spatially resolved

spectroscopy. Two different spectral setups are available for each

galaxy, (i) a low-resolution V500 setup covering the nominal wavelength

range 3745-7500 Å with a spectral resolution of 6.0 Å

(FWHM), and (ii) a medium-resolution V1200 setup covering the nominal

wavelength range 3650-4840 Å with a spectral resolution of 2.3

Å (FWHM). We present the characteristics and data structure of the

CALIFA datasets that should be taken into account for scientific

exploitation of the data, in particular the effects of vignetting, bad

pixels and spatially correlated noise. The data quality test for all 100

galaxies showed that we reach a median limiting continuum sensitivity of

1.0 × 10-18 erg s-1 cm-2

Å-1 arcsec-2 at 5635 Å and 2.2 ×

10-18 erg s-1 cm-2 Å-1

arcsec-2 at 4500 Å for the V500 and V1200 setup

respectively, which corresponds to limiting r and g band surface

brightnesses of 23.6 mag arcsec-2 and 23.4 mag

arcsec-2, or an unresolved emission-line flux detection limit

of roughly 1 × 10-17 erg s-1 cm-2

arcsec-2 and 0.6 × 10-17 erg s-1

cm-2 arcsec-2, respectively. The median spatial

resolution is 3farcs7, and the absolute spectrophotometric calibration

is better than 15% (1σ). We also describe the available interfaces

and tools that allow easy access to this first publicCALIFA data at

califa.caha.es/DR1

 

Based on observations collected at the Centro Astronómico Hispano

Alemán (CAHA) at Calar Alto, operated jointly by the Max-

Planck-Institut für Astronomie (MPIA) and the Instituto de

Astrofísica de Andalucía (CSIC).

Organisation(s)

Department of Astrophysics

External organisation(s)

Universidade do Porto, INAF - Osservatorio Astrofisico di Arcetri, National Institute of Astrophysics, Optics and Electronics (INAOE), Universidad Autónoma de Madrid, University of Missouri–Kansas City, Institute of Astrophysics of the Canary Islands, Max-Planck-Institut für Astronomie, Universidad de Granada, The University of Sydney, Instituto Superior Técnico, Macquarie University, University of Copenhagen, Universidad Complutense de Madrid, University of La Laguna, Leibniz-Institut für Astrophysik Potsdam, Instituto de Astrofísica de Andalucía (CSIC), Centro Astronómico Hispano Alemán (CAHA), Ruhr-Universität Bochum (RUB), Universidade Federal de Santa Catarina, Université Paris VI - Pierre-et-Marie-Curie, Scientific Software Center, Université de recherche Paris Sciences et Lettres, University of Sheffield, Royal Military College of Canada, Czech Academy of Sciences, University of Cambridge, Australian Astronomical Observatory, Landessternwarte Königstuhl (LSW), University of Groningen, University of St. Andrews, Université Paris VII - Paris-Diderot

Journal

Astronomy & Astrophysics

Volume

549

No. of pages

25

ISSN

0004-6361

DOI

https://doi.org/10.1051/0004-6361/201220582

Publication date

01-2013

Peer reviewed

Yes

Austrian Fields of Science 2012

103004 Astrophysics, 103003 Astronomy

Keywords

Portal url

https://ucrisportal.univie.ac.at/en/publications/califa-the-calar-alto-legacy-integral-field-area-survey-ii-first-public-data-release(ba306055-e73f-48aa-b4c8-45bc58384ef0).html