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CALIFA, the Calar Alto Legacy Integral Field Area survey, II : first public data release

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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 angstrom with a spectral resolution of 6.0 angstrom (FWHM), and (ii) a medium-resolution V1200 setup covering the nominal wavelength range 3650-4840 angstrom with a spectral resolution of 2.3 angstrom (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 x 10(-18) erg s(-1) cm(-2) angstrom(-1) arcsec(-2) at 5635 angstrom and 2.2 x 10(-18) erg s(-1) cm(-2) angstrom(-1) arcsec(-2) at 4500 angstrom 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 x 10(-17) erg s(-1) cm(-2) arcsec(-2) and 0.6 x 10(-17) erg s(-1) cm(-2) arcsec(-2), respectively. The median spatial resolution is 3 ''.7, and the absolute spectrophotometric calibration is better than 15% (1 sigma). We also describe the available interfaces and tools that allow easy access to this first public CALIFA data at http://califa.caha.es/DR1.
Keywords
DIGITAL SKY SURVEY, POTSDAM MULTIAPERTURE SPECTROPHOTOMETER, STELLAR, POPULATION SYNTHESIS, SPECTROSCOPIC DATA, GALACTIC NUCLEI, LINE, GALAXIES, DATA RELEASE, PPAK, PMAS, I., techniques: spectroscopic, Galaxy: general, surveys

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MLA
Husemann, B., et al. “CALIFA, the Calar Alto Legacy Integral Field Area Survey, II : First Public Data Release.” ASTRONOMY & ASTROPHYSICS, vol. 549, 2013.
APA
Husemann, B., Jahnke, K., Sanchez, S., Barrado, D., Bekeraite, S., Bomans, D., … Ziegler, B. (2013). CALIFA, the Calar Alto Legacy Integral Field Area survey, II : first public data release. ASTRONOMY & ASTROPHYSICS, 549.
Chicago author-date
Husemann, B, K Jahnke, SF Sanchez, D Barrado, S Bekeraite, DJ Bomans, A Castillo-Morales, et al. 2013. “CALIFA, the Calar Alto Legacy Integral Field Area Survey, II : First Public Data Release.” ASTRONOMY & ASTROPHYSICS 549.
Chicago author-date (all authors)
Husemann, B, K Jahnke, SF Sanchez, D Barrado, S Bekeraite, DJ Bomans, A Castillo-Morales, C Catalan-Torrecilla, R Cid Fernandes, J Falcon-Barroso, R Garcia-Benito, RM Gonzalez Delgado, J Iglesias-Paramo, BD Johnson, D Kupko, R Lopez-Fernandez, M Lyubenova, RA Marino, D Mast, A Miskolczi, A Monreal-Ibero, A Gil de Paz, E Perez, I Perez, FF Rosales-Ortega, T Ruiz-Lara, U Schilling, G van de Ven, J Walcher, J Alves, AL de Amorim, N Backsmann, JK Barrera-Ballesteros, J Bland-Hawthorn, C Cortijo, R-J Dettmar, M Demleitner, AI Diaz, H Enke, E Florido, H Flores, L Galbany, A Gallazzi, B Garcia-Lorenzo, JM Gomes, N Gruel, T Haines, L Holmes, B Jungwiert, V Kalinova, C Kehrig, RC Kennicutt Jr, J Klar, MD Lehnert, AR Lopez-Sanchez, A de Lorenzo-Caceres, E Marmol-Queralto, I Marquez, J Mendez-Abreu, M Molla, A del Olmo, Sharon Meidt van der Wel, P Papaderos, J Puschnig, A Quirrenbach, MM Roth, P Sanchez-Blazquez, K Spekkens, R Singh, V Stanishev, SC Trager, JM Vilchez, V Wild, L Wisotzki, S Zibetti, and B Ziegler. 2013. “CALIFA, the Calar Alto Legacy Integral Field Area Survey, II : First Public Data Release.” ASTRONOMY & ASTROPHYSICS 549.
Vancouver
1.
Husemann B, Jahnke K, Sanchez S, Barrado D, Bekeraite S, Bomans D, et al. CALIFA, the Calar Alto Legacy Integral Field Area survey, II : first public data release. ASTRONOMY & ASTROPHYSICS. 2013;549.
IEEE
[1]
B. Husemann et al., “CALIFA, the Calar Alto Legacy Integral Field Area survey, II : first public data release,” ASTRONOMY & ASTROPHYSICS, vol. 549, 2013.
@article{8622848,
  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 angstrom with a spectral resolution of 6.0 angstrom (FWHM), and (ii) a medium-resolution V1200 setup covering the nominal wavelength range 3650-4840 angstrom with a spectral resolution of 2.3 angstrom (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 x 10(-18) erg s(-1) cm(-2) angstrom(-1) arcsec(-2) at 5635 angstrom and 2.2 x 10(-18) erg s(-1) cm(-2) angstrom(-1) arcsec(-2) at 4500 angstrom 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 x 10(-17) erg s(-1) cm(-2) arcsec(-2) and 0.6 x 10(-17) erg s(-1) cm(-2) arcsec(-2), respectively. The median spatial resolution is 3 ''.7, and the absolute spectrophotometric calibration is better than 15% (1 sigma). We also describe the available interfaces and tools that allow easy access to this first public CALIFA data at http://califa.caha.es/DR1.},
  articleno    = {A87},
  author       = {Husemann, B and Jahnke, K and Sanchez, SF and Barrado, D and Bekeraite, S and Bomans, DJ and Castillo-Morales, A and Catalan-Torrecilla, C and Cid Fernandes, R and Falcon-Barroso, J and Garcia-Benito, R and Gonzalez Delgado, RM and Iglesias-Paramo, J and Johnson, BD and Kupko, D and Lopez-Fernandez, R and Lyubenova, M and Marino, RA and Mast, D and Miskolczi, A and Monreal-Ibero, A and Gil de Paz, A and Perez, E and Perez, I and Rosales-Ortega, FF and Ruiz-Lara, T and Schilling, U and van de Ven, G and Walcher, J and Alves, J and de Amorim, AL and Backsmann, N and Barrera-Ballesteros, JK and Bland-Hawthorn, J and Cortijo, C and Dettmar, R-J and Demleitner, M and Diaz, AI and Enke, H and Florido, E and Flores, H and Galbany, L and Gallazzi, A and Garcia-Lorenzo, B and Gomes, JM and Gruel, N and Haines, T and Holmes, L and Jungwiert, B and Kalinova, V and Kehrig, C and Kennicutt, RC, Jr and Klar, J and Lehnert, MD and Lopez-Sanchez, AR and de Lorenzo-Caceres, A and Marmol-Queralto, E and Marquez, I and Mendez-Abreu, J and Molla, M and del Olmo, A and van der Wel, Sharon Meidt and Papaderos, P and Puschnig, J and Quirrenbach, A and Roth, MM and Sanchez-Blazquez, P and Spekkens, K and Singh, R and Stanishev, V and Trager, SC and Vilchez, JM and Wild, V and Wisotzki, L and Zibetti, S and Ziegler, B},
  issn         = {0004-6361},
  journal      = {ASTRONOMY & ASTROPHYSICS},
  keywords     = {DIGITAL SKY SURVEY,POTSDAM MULTIAPERTURE SPECTROPHOTOMETER,STELLAR,POPULATION SYNTHESIS,SPECTROSCOPIC DATA,GALACTIC NUCLEI,LINE,GALAXIES,DATA RELEASE,PPAK,PMAS,I.,techniques: spectroscopic,Galaxy: general,surveys},
  language     = {eng},
  pages        = {25},
  title        = {CALIFA, the Calar Alto Legacy Integral Field Area survey, II : first public data release},
  url          = {http://dx.doi.org/10.1051/0004-6361/201220582},
  volume       = {549},
  year         = {2013},
}

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