The 2.5 m Telescope of the Sloan Digital Sky Survey

Gunn, James E.; Siegmund, Walter A.; Mannery, Edward J.; Owen, Russell; Hull, Charles L. H.; Leger, R. French; Carey, Larry N.; Knapp, G. R.; York, Donald G.; Boroski, William N.; Kent, Stephen M.; Lupton, Robert H.; Rockosi, Constance M.; Evans, Michael L.; Waddell, Patrick; Anderson, John E.; Annis, J.; Barentine, John C.; Bartoszek, L.; Bastian, Steven; Bracker, Stephen B.; Brewington, H.; Briegel, C.; Brinkmann, J.; Brown, Yorke J.; Carr, Michael; Czarapata, Paul C.; Drennan, C.; Dombeck, T.; Federwitz, Glenn R.; Gillespie, Bruce; Gonzales, Carlos Gomez; Hansen, S.; Harvanek, Michael; Hayes, J. J. E.; Jordan, Wendell P.; Kinney, E.; Klaene, Mark A.; Kleinman, S. J.; Krön, Richard G.; Kresinski, Jurek; Lee, Glenn; Limmongkol, Siriluk; Lindenmeyer, C.; Long, Daniel C.; Loomis, Craig; McGehee, P.; Mantsch, P.; Neilsen, Eric H.; Neswold, R.; Newman, Peter R.; Nitta, A.; Peoples, J.; Pier, Jeffrey R.; Prieto, P.; Prosapio, Angela; Rivetta, C.; Schneider, Donald P.; Snedden, Stephanie A.; Wang, Shu I.

doi:10.1086/500975

Cited by 2,187 publications

(1,441 citation statements)

References 54 publications

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“…Important roles have also been played by projects with large sky coverage such as the Sloan Digital Sky Survey (SDSS; Gunn et al 2006), the Two Micron All Sky Survey (2MASS; Skrutskie et al 2006), and the Wide Field Infrared Explorer (WISE; Wright et al 2010). The number of confirmed metal-rich white dwarfs with circumstellar dust consisted of a single system from 1987 until 2005, but has grown to nearly three dozen (and counting) within a decade.…”

Section: The Spitzer Revolution and Eramentioning

confidence: 99%

Circumstellar debris and pollution at white dwarf stars

Farihi

2016

New Astronomy Reviews

300

265

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Circumstellar disks of planetary debris are now known or suspected to closely orbit hundreds of white dwarf stars. To date, both data and theory support disks that are entirely contained within the preceding giant stellar radii, and hence must have been produced during the white dwarf phase. This picture is strengthened by the signature of material falling onto the pristine stellar surfaces; disks are always detected together with atmospheric heavy elements. The physical link between this debris and the white dwarf host abundances enables unique insight into the bulk chemistry of extrasolar planetary systems via their remnants. This review summarizes the body of evidence supporting dynamically active planetary systems at a large fraction of all white dwarfs, the remnants of first generation, main-sequence planetary systems, and hence provide insight into initial conditions as well as long-term dynamics and evolution.

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Section: The Spitzer Revolution and Eramentioning

confidence: 99%

Circumstellar debris and pollution at white dwarf stars

Farihi

2016

New Astronomy Reviews

300

265

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“…MaNGA is an on-going integral field unit (IFU) survey on the SDSS 2.5 m telescope (Gunn et al 2006), as part of the SDSS-IV survey (SDSS Collaboration et al 2016;Blanton et al 2017). MaNGA makes use of a modification of the BOSS spectrographs (Smee et al 2013) to bundle fibers into hexagons (Drory et al 2015).…”

Section: Manga Targetsmentioning

confidence: 99%

SDSS-IV MaNGA-resolved Star Formation and Molecular Gas Properties of Green Valley Galaxies: A First Look with ALMA and MaNGA

Lin

Belfiore

Pan

et al. 2017

ApJ

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We study the role of cold gas in quenching star formation in the green valley by analyzing ALMA 12 CO (1-0) observations of three galaxies with resolved optical spectroscopy from the MaNGA survey. We present resolution-matched maps of the star formation rate and molecular gas mass. These data are used to calculate the star formation efficiency (SFE) and gas fraction ( f gas ) for these galaxies separately in the central "bulge" regions and outer disks. We find that, for the two galaxies whose global specific star formation rate (sSFR) deviates most from the star formation main sequence, the gas fraction in the bulges is significantly lower than that in their disks, supporting an "inside-out" model of galaxy quenching. For the two galaxies where SFE can be reliably determined in the central regions, the bulges and disks share similar SFEs. This suggests that a decline in f gas is the main driver of lowered sSFR in bulges compared to disks in green valley galaxies. Within the disks, there exist common correlations between the sSFR and SFE and between sSFR and f gas on kiloparsec scales-the local SFE or f gas in the disks declines with local sSFR. Our results support a picture in which the sSFR in bulges is primarily controlled by f gas , whereas both SFE and f gas play a role in lowering the sSFR in disks. A larger sample is required to confirm if the trend established in this work is representative of the green valley as a whole.

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“…The galaxies are selected from multi-colour SDSS imaging (Fukugita et al 1996;Gunn et al 1998;Smith et al 2002;Gunn, Siegmund & et al 2006;Doi et al 2010) over 10 252 deg 2 divided in two patches on the sky and cover a redshift range of z = 0.2 − 0.75. The final BOSS DR12 analysis splits this redshift range in three overlapping redshift bins defined by 0.2 < z < 0.5, 0.4 < z < 0.6 and 0.5 < z < 0.75 with the effective redshifts z eff = 0.38, 0.51 and 0.61.…”

Section: The Boss Dr1datasetmentioning

confidence: 99%

Constraining the relative velocity effect using the Baryon Oscillation Spectroscopic Survey

Beutler

Seljak

Vlah

2017

Monthly Notices of the Royal Astronomical Society

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We analyse the power spectrum of the Baryon Oscillation Spectroscopic Survey (BOSS), Data Release 12 (DR12) to constrain the relative velocity effect, which represents a potential systematic for measurements of the Baryon Acoustic Oscillation (BAO) scale. The relative velocity effect is sourced by the different evolution of baryon and cold dark matter perturbations before decoupling. Our power spectrum model includes all 1-loop redshift-space terms corresponding to v bc parameterised by the bias parameter b v 2 . We also include the linear terms proportional to the relative density, δ bc , and relative velocity dispersion, θ bc , which we parameterise with the bias parameters b bc δ and b bc θ . Our data does not support a detection of the relative velocity effect in any of these parameters. Combining the low and high redshift bins of BOSS, we find limits of b v 2 = 0.012 ± 0.015 (±0.031), b bc δ = −1.0 ± 2.5 (±6.2) and b bc θ = −114 ± 55 (±175) with 68% (95%) confidence levels. These constraints restrict the potential systematic shift in D A (z), H(z) and f σ 8 , due to the relative velocity, to 1%, 0.8% and 2%, respectively. Given the current uncertainties on the BAO measurements of BOSS these shifts correspond to 0.53σ, 0.5σ and 0.22σ for D A (z), H(z) and f σ 8 , respectively.

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The 2.5 m Telescope of the Sloan Digital Sky Survey

Cited by 2,187 publications

References 54 publications

Circumstellar debris and pollution at white dwarf stars

Circumstellar debris and pollution at white dwarf stars

SDSS-IV MaNGA-resolved Star Formation and Molecular Gas Properties of Green Valley Galaxies: A First Look with ALMA and MaNGA

Constraining the relative velocity effect using the Baryon Oscillation Spectroscopic Survey

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