@article {2012ApJS..203...21A, title = {The Ninth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the SDSS-III Baryon Oscillation Spectroscopic Survey}, journal = {\apjs}, volume = {203}, number = {2}, year = {2012}, month = {dec}, pages = {21}, keywords = {Astrophysics - Cosmology and Nongalactic Astrophysics, Astrophysics - Instrumentation and Methods for Astrophysics, atlases, catalogs, surveys}, doi = {10.1088/0067-0049/203/2/21}, author = {Ahn, Christopher P. and Alexandroff, Rachael and Allende Prieto, Carlos and Anderson, Scott F. and Anderton, Timothy and Andrews, Brett H. and Aubourg, {\'E}ric and Bailey, Stephen and Balbinot, Eduardo and Barnes, Rory and Bautista, Julian and Beers, Timothy C. and Beifiori, Alessandra and Berlind, Andreas A. and Bhardwaj, Vaishali and Bizyaev, Dmitry and Blake, Cullen H. and Blanton, Michael R. and Blomqvist, Michael and Bochanski, John J. and Bolton, Adam S. and Borde, Arnaud and Bovy, Jo and Brandt, W. N. and Brinkmann, J. and Brown, Peter J. and Brownstein, Joel R. and Bundy, Kevin and Busca, N. G. and Carithers, William and Carnero, Aurelio R. and Carr, Michael A. and Casetti-Dinescu, Dana I. and Chen, Yanmei and Chiappini, Cristina and Comparat, Johan and Connolly, Natalia and Crepp, Justin R. and Cristiani, Stefano and Croft, Rupert A. C. and Cuesta, Antonio J. and da Costa, Luiz N. and Davenport, James R. A. and Dawson, Kyle S. and de Putter, Roland and De Lee, Nathan and Delubac, Timoth{\'e}e and Dhital, Saurav and Ealet, Anne and Ebelke, Garrett L. and Edmondson, Edward M. and Eisenstein, Daniel J. and Escoffier, S. and Esposito, Massimiliano and Evans, Michael L. and Fan, Xiaohui and Femen{\'\i}a Castell{\'a}, Bruno and Fern{\'a}ndez Alvar, Emma and Ferreira, Leticia D. and Filiz Ak, N. and Finley, Hayley and Fleming, Scott W. and Font-Ribera, Andreu and Frinchaboy, Peter M. and Garc{\'\i}a-Hern{\'a}ndez, D. A. and Garc{\'\i}a P{\'e}rez, A. E. and Ge, Jian and G{\'e}nova-Santos, R. and Gillespie, Bruce A. and Girardi, L{\'e}o and Gonz{\'a}lez Hern{\'a}ndez, Jonay I. and Grebel, Eva K. and Gunn, James E. and Guo, Hong and Haggard, Daryl and Hamilton, Jean-Christophe and Harris, David W. and Hawley, Suzanne L. and Hearty, Frederick R. and Ho, Shirley and Hogg, David W. and Holtzman, Jon A. and Honscheid, Klaus and Huehnerhoff, J. and Ivans, Inese I. and Ivezi{\'c}, {\v Z}eljko and Jacobson, Heather R. and Jiang, Linhua and Johansson, Jonas and Johnson, Jennifer A. and Kauffmann, Guinevere and Kirkby, David and Kirkpatrick, Jessica A. and Klaene, Mark A. and Knapp, Gillian R. and Kneib, Jean-Paul and Le Goff, Jean-Marc and Leauthaud, Alexie and Lee, Khee-Gan and Lee, Young Sun and Long, Daniel C. and Loomis, Craig P. and Lucatello, Sara and Lundgren, Britt and Lupton, Robert H. and Ma, Bo and Ma, Zhibo and MacDonald, Nicholas and Mack, Claude E. and Mahadevan, Suvrath and Maia, Marcio A. G. and Majewski, Steven R. and Makler, Martin and Malanushenko, Elena and Malanushenko, Viktor and Manchado, A. and Mandelbaum, Rachel and Manera, Marc and Maraston, Claudia and Margala, Daniel and Martell, Sarah L. and McBride, Cameron K. and McGreer, Ian D. and McMahon, Richard G. and M{\'e}nard, Brice and M{\'e}sz{\'a}ros, Sz. and Miralda-Escud{\'e}, Jordi and Montero-Dorta, Antonio D. and Montesano, Francesco and Morrison, Heather L. and Muna, Demitri and Munn, Jeffrey A. and Murayama, Hitoshi and Myers, Adam D. and Neto, A. F. and Nguyen, Duy Cuong and Nichol, Robert C. and Nidever, David L. and Noterdaeme, Pasquier and Nuza, Sebasti{\'a}n E. and Ogando, Ricardo L. C. and Olmstead, Matthew D. and Oravetz, Daniel J. and Owen, Russell and Padmanabhan, Nikhil and Palanque-Delabrouille, Nathalie and Pan, Kaike and Parejko, John K. and Parihar, Prachi and P{\^a}ris, Isabelle and Pattarakijwanich, Petchara and Pepper, Joshua and Percival, Will J. and Perez-Fournon, Ismael and P{\'e}rez-R{\`a}fols, Ignasi and Petitjean, Patrick and Pforr, Janine and Pieri, Matthew M. and Pinsonneault, Marc H. and Porto de Mello, G. F. and Prada, Francisco and Price-Whelan, Adrian M. and Raddick, M. Jordan and Rebolo, Rafael and Rich, James and Richards, Gordon T. and Robin, Annie C. and Rocha-Pinto, Helio J. and Rockosi, Constance M. and Roe, Natalie A. and Ross, Ashley J. and Ross, Nicholas P. and Rossi, Graziano and Rubi{\~n}o-Mart{\'\i}n, J. A. and Samushia, Lado and Sanchez Almeida, J. and S{\'a}nchez, Ariel G. and Santiago, Bas{\'\i}lio and Sayres, Conor and Schlegel, David J. and Schlesinger, Katharine J. and Schmidt, Sarah J. and Schneider, Donald P. and Schultheis, Mathias and Schwope, Axel D. and Sc{\'o}ccola, C. G. and Seljak, Uro{\v s} and Sheldon, Erin and Shen, Yue and Shu, Yiping and Simmerer, Jennifer and Simmons, Audrey E. and Skibba, Ramin A. and Skrutskie, M. F. and Slosar, A. and Sobreira, Flavia and Sobeck, Jennifer S. and Stassun, Keivan G. and Steele, Oliver and Steinmetz, Matthias and Strauss, Michael A. and Streblyanska, Alina and Suzuki, Nao and Swanson, Molly E. C. and Tal, Tomer and Thakar, Aniruddha R. and Thomas, Daniel and Thompson, Benjamin A. and Tinker, Jeremy L. and Tojeiro, Rita and Tremonti, Christy A. and Vargas Maga{\~n}a, M. and Verde, Licia and Viel, Matteo and Vikas, Shailendra K. and Vogt, Nicole P. and Wake, David A. and Wang, Ji and Weaver, Benjamin A. and Weinberg, David H. and Weiner, Benjamin J. and West, Andrew A. and White, Martin and Wilson, John C. and Wisniewski, John P. and Wood-Vasey, W. M. and Yanny, Brian and Yeche, Christophe and York, Donald G. and Zamora, O. and Zasowski, Gail and Zehavi, Idit and Zhao, Gong-Bo and Zheng, Zheng and Zhu, Guangtun and Zinn, Joel C.} }