The Seventh Data Release of the Sloan Digital Sky Survey

Abazajian, Kevork N.; Adelman-McCarthy, Jennifer K.; Agüeros, Marcel A.; Allam, S.; Prieto, C. Allende; An, Deokkeun; Anderson, K. S. J.; Anderson, Scott F.; Annis, J.; Bahcall, Neta A.; Bailer‐Jones, C. A. L.; Barentine, John C.; Bassett, Bruce A.; Becker, A. C.; Beers, Timothy C.; Bell, Eric F.; Belokurov, V.; Berlind, Andreas A.; Berman, E.; Bernardi, Mariangela; Bickerton, Steven J.; Bizyaev, Dmitry; Blakeslee, John P.; Blanton, Michael R.; Bochanski, John J.; Boroski, William N.; Brewington, H.; Brinchmann, Jarle; Brinkmann, J.; Brunner, Róbert; Budavri, Tams; Carey, Larry N.; Carliles, Samuel; Carr, Michael; Castander, F. J.; Cinabro, D.; Connolly, Andrew J.; Csabai, István; Cunha, C. E.; Czarapata, Paul C.; Davenport, James R. A.; Haas, E. de; Dilday, B.; Doi, Mamoru; Eisenstein, Daniel J.; Evans, Michael L.; Evans, N. W.; Fan, Xiaohui; Friedman, S. D.; Frieman, Joshua A.; Fukugita, M.; Gänsicke, B. T.; Gates, Evalyn; Gillespie, Bruce; Gilmore, G.; González, B.; González, Carlos Fernández; Grebel, Eva K.; Gunn, James E.; Győry, Zsuzsanna; Hall, Patrick B.; Harding, Paul; Harris, Frederick H.; Harvanek, Michael; Hawley, Suzanne L.; Hayes, J. J. E.; Heckman, Timothy M.; Hendry, John S.; Hennessy, G. S.; Hindsley, Robert B.; Hoblitt, J.; Hogan, Craig J.; Hogg, David W.; Holtzman, Jon A.; Hyde, Joseph; Ichikawa, S.; Ichikawa, Takashi; Im, Myungshin; Ivezić, Eljko; Jester, Sebastian; Jiang, Linhua; Johnson, Jennifer A.; Jorgensen, A. M.; Jurić, Mario; Kent, Stephen M.; Keßler, R.; Kleinman, S. J.; Knapp, G. R.; Konishi, K.; Krön, Richard G.; Krzesiński, Jurek; Kuropatkin, N.; Lampeitl, H.; Lebedeva, Svetlana; Lee, Myung Gyoon; Lee, Young Sun; Leger, R. French; Lépine, Sébastien; Li, Nolan; Lima, M.; Lin, Huan; Long, Daniel C.; Loomis, Craig; Loveday, Jon; Lupton, Robert H.; Magnier, E. A.; Malanushenko, O.; Malanushenko, Viktor; Mandelbaum, Rachel; Margon, B.; Marriner, J.; Martínez–Delgado, David; Matsubara, Takahiko; McGehee, P.; McKay, Timothy A.; Meiksin, Avery; Morrison, Heather; Mullally, Fergal; Munn, Jeffrey A.; Murphy, Tara; Nash, T.; Nebot, A.; Neilsen, Eric H.; Newberg, Heidi Jo; Newman, Peter R.; Nichol, R. C.; Nicinski, Tom; Nieto-Santisteban, María; Nitta, A.; Okamura, S.; Oravetz, Daniel; Ostriker, Jeremiah P.; Owen, Russell; Padmanabhan, Nikhil; Pan, Kaike; Park, Changbom; Pauls, George; Peoples, J.; Percival, Will J.; Pier, Jeffrey R.; Pope, Adrian; Pourbaix, D.; Price, P. A.; Purger, Norbert; Quinn, Thomas; Raddick, M. Jordan; Fiorentin, P. Re; Richards, Gordon T.; Richmond, M.; Riess, Adam G.; Rix, H. W.; Rockosi, Constance M.; Šako, M.; Schlegel, David J.; Schneider, Donald P.; Scholz, R. D.; Schreiber, M. R.; Schwope, A. D.; Seljak, Uroš; Sesar, Branimir; Sheldon, E.; Shimasaku, K.; Sibley, Valena C.; Simmons, Audrey; Sivarani, T.; Smith, J. A.; Smith, M.; Smolić, Vernesa; Snedden, Stephanie A.; Stebbins, Albert; Steinmetz, Matthias; Stoughton, Chris; Strauss, Michael A.; SubbaRao, Mark; Suto, Yasushi; Szalay, Alexander S.; Szapudi, István; Szkody, Paula; Tanaka, Masayuki; Tegmark, Max; Teodoro, L. F. A.; Thakar, Aniruddha R.; Tremonti, Christy; Tucker, D. L.; Uomoto, Alan; Berk, D. E. vanden; Vandenberg, Jan; Vidrih, S.; Vogeley, Michael S.; Voges, W.; Vogt, Nicole P.; Wadadekar, Yogesh; Watters, S.; Weinberg, David H.; West, Andrew A.; White, Simon D. M.; Wilhite, Brian C.; Wonders, Alainna C.; Yanny, B.; Yocum, D. R.; York, Donald G.; Zehavi, Idit; Zibetti, S.; Zucker, D. B.

doi:10.1088/0067-0049/182/2/543

Cited by 4,610 publications

(3,981 citation statements)

References 62 publications

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“…6 All four projects are being carried out by international, multi-institutional collaborations. Pan-STARRS and DES will both carry out large area, multi-band imaging surveys that go a factor of ten or more deeper (in flux) than the SDSS imaging survey (Abazajian et al, 2009), using, respectively, a 1.4-Gigapixel camera on the 1.8-m PS1 telescope on Haleakala in Hawaii and a 0.5-Gigapixel camera on the 4-m Blanco telescope on Cerro Tololo in Chile. These imaging surveys will be used to measure structure growth via weak lensing, to identify galaxy clusters and calibrate their masses via weak lensing, and to measure BAO in galaxy angular clustering using photometric redshifts.…”

Section: Looking Forwardmentioning

confidence: 99%

Observational probes of cosmic acceleration

et al. 2013

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The accelerating expansion of the universe is the most surprising cosmological discovery in many decades, implying that the universe is dominated by some form of "dark energy" with exotic physical properties, or that Einstein's theory of gravity breaks down on cosmological scales. The profound implications of cosmic acceleration have inspired ambitious efforts to understand its origin, with experiments that aim to measure the history of expansion and growth of structure with percent-level precision or higher. We review in detail the four most well established methods for making such measurements: Type Ia supernovae, baryon acoustic oscillations (BAO), weak gravitational lensing, and the abundance of galaxy clusters. We pay particular attention to the systematic uncertainties in these techniques and to strategies for controlling them at the level needed to exploit "Stage IV" dark energy facilities such as BigBOSS, LSST, Euclid, and WFIRST. We briefly review a number of other approaches including redshift-space distortions, the Alcock-Paczynski effect, and direct measurements of the Hubble constant H 0 . We present extensive forecasts for constraints on the dark energy equation of state and parameterized deviations from General Relativity, achievable with Stage III and Stage IV experimental programs that incorporate supernovae, BAO, weak lensing, and cosmic microwave background data. We also show the level of precision required for clusters or other methods to provide constraints competitive with those of these fiducial programs. We emphasize the value of a balanced program that employs several of the most powerful methods in combination, both to cross-check systematic uncertainties and to take advantage of complementary information. Surveys to probe cosmic acceleration produce data sets that support a wide range of scientific investigations, and they continue the longstanding astronomical tradition of mapping the universe in ever greater detail over ever larger scales.

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Section: Looking Forwardmentioning

confidence: 99%

Observational probes of cosmic acceleration

et al. 2013

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“…The sample galaxies in the ranges of z ∼ 0.05 − 0.32 from which CO emission was detected were drawn from SDSS DR7 (Abazajian et al 2009). The stellar mass and SFR of their sample galaxies were provided by the MPA-JHU group.…”

Section: Measurement Of Molecular Gas Mass From Comentioning

confidence: 99%

Redshift evolution of stellar mass versus gas fraction relation in 0 <z< 2 regime: observational constraint for galaxy formation models

Morokuma-Matsui¹,

Baba²

2015

Mon. Not. R. Astron. Soc.

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We investigate the redshift evolution of the molecular gas mass fraction (f mol = M mol M⋆+M mol , where M mol is molecular gas mass and M ⋆ is stellar mass) of galaxies in the redshift range of 0 < z < 2 as a function of the stellar mass by combining CO literature data. We observe a stellar-mass dependence of the f mol evolution where massive galaxies have largely depleted their molecular gas at z = 1, whereas the f mol value of less massive galaxies drastically decreases from z = 1. We compare the observed M ⋆ −f mol relation with theoretical predictions from cosmological hydrodynamic simulations and semi-analytical models for galaxy formation. Although the theoretical studies approximately reproduce the observed mass dependence of f mol evolution, they tend to underestimate the f mol values, particularly of less massive (< 10 10 M ⊙ ) and massive galaxies (> 10 11 M ⊙ ) when compared with the observational values. Our result suggests the importance of the feedback models which suppress the star formation while simultaneously preserving the molecular gas in order to reproduce the observed M ⋆ − f mol relation.

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“…Here the optical observations are taken from the SDSS r-band (Abazajian et al 2009) while the HI centroids are taken from the ALFALFA survey which used the Arecibo radio telescope (Giovanelli et al 2005(Giovanelli et al , 2007Saintonge et al 2008;Kent et al 2008;Martin et al 2009). The astrometric precision (about 24 arcseconds) of these observations are limited by the relatively large beam size of the radio maps.…”

Section: Offset Between Hi and Optical Centroidsmentioning

confidence: 99%

Astrophysical tests of modified gravity: the morphology and kinematics of dwarf galaxies

Vikram

Cabré

Jain

et al. 2013

J. Cosmol. Astropart. Phys.

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This paper is the third in a series on tests of gravity using observations of stars and nearby dwarf galaxies. We carry out four distinct tests using published data on the kinematics and morphology of dwarf galaxies, motivated by the theoretical work of Hui et al. (2009) andJain &Vanderplas (2011). In a wide class of gravity theories a scalar field couples to matter and provides an attractive fifth force. Due to their different self-gravity, stars and gas may respond differently to the scalar force leading to several observable deviations from standard gravity. HI gas, red giant stars and main sequence stars can be displaced relative to each other, and the stellar disk can display warps or asymmetric rotation curves aligned with external potential gradients. To distinguish the effects of modified gravity from standard astrophysical phenomena, we use a control sample of galaxies that are expected to be screened from the fifth force. In all cases we find no significant deviation from the null hypothesis of general relativity. The limits obtained from dwarf galaxies are not yet competitive with the limits from cepheids obtained in our first paper, but can be improved to probe regions of parameter space that are inaccessible using other tests. We discuss how our methodology can be applied to new radio and optical observations of nearby galaxies.

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The Seventh Data Release of the Sloan Digital Sky Survey

Cited by 4,610 publications

References 62 publications

Observational probes of cosmic acceleration

Observational probes of cosmic acceleration

Redshift evolution of stellar mass versus gas fraction relation in 0 <z< 2 regime: observational constraint for galaxy formation models

Astrophysical tests of modified gravity: the morphology and kinematics of dwarf galaxies

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