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Title: | Overview of the SDSS-IV MaNGA Survey: Mapping nearby Galaxies at Apache Point Observatory | Authors: | Bundy, Kevin Bershady, Matthew A. Law, David R. Yan, Renbin Drory, Niv MacDonald, Nicholas Wake, David A. Cherinka, Brian Sánchez-Gallego, José R. Weijmans, Anne-Marie Thomas, Daniel Tremonti, Christy Masters, Karen Coccato, Lodovico Diamond-Stanic, Aleksandar M. Aragón-Salamanca, Alfonso Avila-Reese, Vladimir Badenes, Carles Falcón-Barroso, Jésus BELFIORE, FRANCESCO MICHEL CONCETTO Bizyaev, Dmitry Blanc, Guillermo A. Bland-Hawthorn, Joss Blanton, Michael R. Brownstein, Joel R. Byler, Nell Cappellari, Michele Conroy, Charlie Dutton, Aaron A. Emsellem, Eric Etherington, James Frinchaboy, Peter M. Fu, Hai Gunn, James E. Harding, Paul Johnston, Evelyn J. Kauffmann, Guinevere Kinemuchi, Karen Klaene, Mark A. Knapen, Johan H. Leauthaud, Alexie Li, Cheng Lin, Lihwai Maiolino, Roberto Malanushenko, Viktor Malanushenko, Elena Mao, Shude Maraston, Claudia McDermid, Richard M. Merrifield, Michael R. Nichol, Robert C. Oravetz, Daniel Pan, Kaike Parejko, John K. Sanchez, Sebastian F. Schlegel, David Simmons, Audrey Steele, Oliver Steinmetz, Matthias Thanjavur, Karun Thompson, Benjamin A. Tinker, Jeremy L. van den Bosch, Remco C. E. Westfall, Kyle B. Wilkinson, David Wright, Shelley Xiao, Ting Zhang, Kai |
Issue Date: | 2015 | Journal: | THE ASTROPHYSICAL JOURNAL | Number: | 798 | Issue: | 1 | First Page: | 7 | Abstract: | We present an overview of a new integral field spectroscopic survey called MaNGA (Mapping Nearby Galaxies at Apache Point Observatory), one of three core programs in the fourth-generation Sloan Digital Sky Survey (SDSS-IV) that began on 2014 July 1. MaNGA will investigate the internal kinematic structure and composition of gas and stars in an unprecedented sample of 10,000 nearby galaxies. We summarize essential characteristics of the instrument and survey design in the context of MaNGA's key science goals and present prototype observations to demonstrate MaNGA's scientific potential. MaNGA employs dithered observations with 17 fiber-bundle integral field units that vary in diameter from 12'' (19 fibers) to 32'' (127 fibers). Two dual-channel spectrographs provide simultaneous wavelength coverage over 3600-10300 Å at R ~ 2000. With a typical integration time of 3 hr, MaNGA reaches a target r-band signal-to-noise ratio of 4-8 (Å<SUP>-1</SUP> per 2'' fiber) at 23 AB mag arcsec<SUP>-2</SUP>, which is typical for the outskirts of MaNGA galaxies. Targets are selected with M <SUB>*</SUB> >~ 10<SUP>9</SUP> M <SUB>☉</SUB> using SDSS-I redshifts and i-band luminosity to achieve uniform radial coverage in terms of the effective radius, an approximately flat distribution in stellar mass, and a sample spanning a wide range of environments. Analysis of our prototype observations demonstrates MaNGA's ability to probe gas ionization, shed light on recent star formation and quenching, enable dynamical modeling, decompose constituent components, and map the composition of stellar populations. MaNGA's spatially resolved spectra will enable an unprecedented study of the astrophysics of nearby galaxies in the coming 6 yr. | Acknowledgments: | We are grateful for careful comments on the manuscript by Don Schneider and input from the SAMI, CALIFA, and ATLAS 3D teams. We also thank Adam Bolton, Stephane Courteau, Natascha Forster-Schreiber, Bruce Gillespie, Gary Hill, Arlette Pécontal, Rob Sharp, Ray Sharples, and Dennis Zaritsky for valuable feedback on the MaNGA instrumentation and survey design. Funding for SDSS-III and SDSS-IV has been provided by the Alfred P. Sloan Foundation and Participating Institutions. Additional funding for SDSS-III comes from the National Science Foundation and the U.S. Department of Energy Office of Science. Further information about both projects is available at www.sdss.org . SDSS is managed by the Astrophysical Research Consortium for the Participating Institutions in both collaborations. In SDSS-III these include the University of Arizona, the Brazilian Participation Group, Brookhaven National Laboratory, Carnegie Mellon University, University of Florida, the French Participation Group, the German Participation Group, Harvard University, the Instituto de Astrofisica de Canarias, the Michigan State/Notre Dame/JINA Participation Group, Johns Hopkins University, Lawrence Berkeley National Laboratory, Max Planck Institute for Astrophysics, Max Planck Institute for Extraterrestrial Physics, New Mexico State University, New York University, Ohio State University, Pennsylvania State University, University of Portsmouth, Princeton University, the Spanish Participation Group, University of Tokyo, University of Utah, Vanderbilt University, University of Virginia, University of Washington, and Yale University. The Participating Institutions in SDSS-IV are Carnegie Mellon University, Colorado University, Boulder, Harvard-Smithsonian Center for Astrophysics Participation Group, Johns Hopkins University, Kavli Institute for the Physics and Mathematics of the Universe, Max-Planck-Institut fuer Astrophysik (MPA Garching), Max-Planck-Institut fuer Extraterrestrische Physik (MPE), Max-Planck-Institut fuer Astronomie (MPIA Heidelberg), National Astronomical Observatories of China, New Mexico State University, New York University, The Ohio State University, Penn State University, Shanghai Astronomical Observatory, United Kingdom Participation Group, University of Portsmouth, University of Utah, University of Wisconsin, and Yale University. This work was supported in part by a World Premier International Research Center Initiative (WPI Initiative), MEXT, Japan. J.H.K. acknowledges financial support to the DAGAL network from the People Programme (Marie Curie Actions) of the European Union's Seventh Framework Programme FP7/2007-2013/ under REA grant agreement no. PITN-GA-2011-289313. This work has also been supported by the Strategic Priority Research Program “The Emergence of Cosmological Structures” of the Chinese Academy of Sciences Grant No. XDB09000000 (S.M., C.L.) and by the National Natural Science Foundation of China (NSFC) under grant no. 11333003 (S.M.). M.C. acknowledges support from a Royal Society University Research Fellowship. C.C. acknowledges support from the Sloan and Packard Foundations. A.M.D. acknowledges support from The Grainger Foundation. | URI: | http://hdl.handle.net/20.500.12386/31289 | URL: | https://iopscience.iop.org/article/10.1088/0004-637X/798/1/7 | ISSN: | 0004-637X | DOI: | 10.1088/0004-637X/798/1/7 | Bibcode ADS: | 2015ApJ...798....7B | Fulltext: | open |
Appears in Collections: | 1.01 Articoli in rivista |
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1412.1482-compr.pdf | preprint | 4.15 MB | Adobe PDF | View/Open |
Bundy_2015_ApJ_798_7.pdf | [Administrators only] | 4.29 MB | Adobe PDF |
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