TY - JOUR
T1 - THE DATA REDUCTION PIPELINE for the SDSS-IV MaNGA IFU GALAXY SURVEY
AU - Law, David R.
AU - Cherinka, Brian
AU - Yan, Renbin
AU - Andrews, Brett H.
AU - Bershady, Matthew A.
AU - Bizyaev, Dmitry
AU - Blanc, Guillermo A.
AU - Blanton, Michael R.
AU - Bolton, Adam S.
AU - Brownstein, Joel R.
AU - Bundy, Kevin
AU - Chen, Yanmei
AU - Drory, Niv
AU - D'Souza, Richard
AU - Fu, Hai
AU - Jones, Amy
AU - Kauffmann, Guinevere
AU - MacDonald, Nicholas
AU - Masters, Karen L.
AU - Newman, Jeffrey A.
AU - Parejko, John K.
AU - Sánchez-Gallego, José R.
AU - Sánchez, Sebastian F.
AU - Schlegel, David J.
AU - Thomas, Daniel
AU - Wake, David A.
AU - Weijmans, Anne Marie
AU - Westfall, Kyle B.
AU - Zhang, Kai
N1 - Publisher Copyright:
© 2016. The American Astronomical Society. All rights reserved..
PY - 2016/10
Y1 - 2016/10
N2 - Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) is an optical fiber-bundle integral-field unit (IFU) spectroscopic survey that is one of three core programs in the fourth-generation Sloan Digital Sky Survey (SDSS-IV). With a spectral coverage of 3622-10354 A and an average footprint of ∼500 arcsec2 per IFU the scientific data products derived from MaNGA will permit exploration of the internal structure of a statistically large sample of 10,000 low-redshift galaxies in unprecedented detail. Comprising 174 individually pluggable science and calibration IFUs with a near-constant data stream, MaNGA is expected to obtain ∼100 million raw-frame spectra and ∼10 million reduced galaxy spectra over the six-year lifetime of the survey. In this contribution, we describe the MaNGA Data Reduction Pipeline algorithms and centralized metadata framework that produce sky-subtracted spectrophotometrically calibrated spectra and rectified three-dimensional data cubes that combine individual dithered observations. For the 1390 galaxy data cubes released in Summer 2016 as part of SDSS-IV Data Release 13, we demonstrate that the MaNGA data have nearly Poisson-limited sky subtraction shortward of ∼8500 A and reach a typical 10σ limiting continuum surface brightness μ = 23.5 AB arcsec-2 in a five-arcsecond-diameter aperture in the g-band. The wavelength calibration of the MaNGA data is accurate to 5 km s-1 rms, with a median spatial resolution of 2.54 arcsec FWHM (1.8 kpc at the median redshift of 0.037) and a median spectral resolution of σ = 72 km s-1.
AB - Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) is an optical fiber-bundle integral-field unit (IFU) spectroscopic survey that is one of three core programs in the fourth-generation Sloan Digital Sky Survey (SDSS-IV). With a spectral coverage of 3622-10354 A and an average footprint of ∼500 arcsec2 per IFU the scientific data products derived from MaNGA will permit exploration of the internal structure of a statistically large sample of 10,000 low-redshift galaxies in unprecedented detail. Comprising 174 individually pluggable science and calibration IFUs with a near-constant data stream, MaNGA is expected to obtain ∼100 million raw-frame spectra and ∼10 million reduced galaxy spectra over the six-year lifetime of the survey. In this contribution, we describe the MaNGA Data Reduction Pipeline algorithms and centralized metadata framework that produce sky-subtracted spectrophotometrically calibrated spectra and rectified three-dimensional data cubes that combine individual dithered observations. For the 1390 galaxy data cubes released in Summer 2016 as part of SDSS-IV Data Release 13, we demonstrate that the MaNGA data have nearly Poisson-limited sky subtraction shortward of ∼8500 A and reach a typical 10σ limiting continuum surface brightness μ = 23.5 AB arcsec-2 in a five-arcsecond-diameter aperture in the g-band. The wavelength calibration of the MaNGA data is accurate to 5 km s-1 rms, with a median spatial resolution of 2.54 arcsec FWHM (1.8 kpc at the median redshift of 0.037) and a median spectral resolution of σ = 72 km s-1.
KW - methods: data analysis
KW - surveys
KW - techniques: imaging spectroscopy
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U2 - 10.3847/0004-6256/152/4/83
DO - 10.3847/0004-6256/152/4/83
M3 - Article
AN - SCOPUS:84991717801
SN - 0004-6256
VL - 152
JO - Astronomical Journal
JF - Astronomical Journal
IS - 4
M1 - 83
ER -