THE TENTH DATA RELEASE OF THE SLOAN DIGITAL SKY SURVEY: FIRST SPECTROSCOPIC DATA FROM THE SDSS-III APACHE POINT OBSERVATORY GALACTIC EVOLUTION EXPERIMENT

AbstractThe SDSS Apache Point Observatory Galactic Evolution Experiment (APOGEE) has collected high resolution near-IR spectra for several hundred thousand stars throughout the Milky Way. We review some of the results related to chemistry of stars in the disk, where APOGEE has a particular advantage by virtue of being able to work in more obscured areas. The ability to measure carbon and nitrogen abundances in giants in the near-IR provides insight into stellar ages. We summarize results on the variation of mean metallicity, metallicity distribution functions, and the [α/Fe]–[Fe/H] relation across the Galactic disk, as well as results on the structural parameters in mono-abundance populations. Many of these results suggest that radial migration has played a significant role in the Galactic disk. It may be possible to disentangle radial mixing using multi-element abundance patterns.

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The Apache Point Observatory Galactic Evolution Experiment (APOGEE)

Proceedings of the International Astronomical Union ◽

10.1017/s1743921310003558 ◽

2009 ◽

Vol 5 (S262) ◽

pp. 428-429

Author(s):

Ricardo P. Schiavon ◽

Steven R. Majewski

Keyword(s):

Large Scale ◽

Near Infrared ◽

Milky Way ◽

Galactic Evolution ◽

Sloan Digital Sky Survey ◽

Elemental Abundances ◽

Sky Survey ◽

The Galaxy ◽

Evolution Experiment ◽

Under Construction

AbstractThe Apache Point Observatory Galactic Evolution Experiment (APOGEE) is a large scale, high-resolution, near-infrared spectroscopic survey of Milky Way stellar populations and one of the four experiments in the Sloan Digital Sky Survey III (SDSS-III). APOGEE will be based on a new multi-fiber cryogenic spectrograph, currently under construction, expected to begin survey observations on the 2.5 m Sloan telescope in the Spring of 2011. APOGEE will measure high-precision radial velocities and elemental abundances for ~15 elements for ~ 105 stars, and is expected to shed new light on the processes that led to the formation of the Galaxy.

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THE NINTH DATA RELEASE OF THE SLOAN DIGITAL SKY SURVEY: FIRST SPECTROSCOPIC DATA FROM THE SDSS-III BARYON OSCILLATION SPECTROSCOPIC SURVEY

The Astrophysical Journal Supplement Series ◽

10.1088/0067-0049/203/2/21 ◽

2012 ◽

Vol 203 (2) ◽

pp. 21 ◽

Cited By ~ 957

Author(s):

Christopher P. Ahn ◽

Rachael Alexandroff ◽

Carlos Allende Prieto ◽

Scott F. Anderson ◽

Timothy Anderton ◽

...

Keyword(s):

Spectroscopic Data ◽

Sloan Digital Sky Survey ◽

Sky Survey ◽

Data Release

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The 13th Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the SDSS-IV Survey Mapping Nearby Galaxies at Apache Point Observatory

The Astrophysical Journal Supplement Series ◽

10.3847/1538-4365/aa8992 ◽

2017 ◽

Vol 233 (2) ◽

pp. 25 ◽

Cited By ~ 217

Author(s):

Franco D. Albareti ◽

Carlos Allende Prieto ◽

Andres Almeida ◽

Friedrich Anders ◽

Scott Anderson ◽

...

Keyword(s):

Spectroscopic Data ◽

Sloan Digital Sky Survey ◽

Sky Survey ◽

Data Release ◽

Nearby Galaxies

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The Apache Point Observatory Galactic Evolution Experiment (APOGEE) in Sloan Digital Sky Survey III (SDSS-III)

Proceedings of the International Astronomical Union ◽

10.1017/s1743921310001298 ◽

2009 ◽

Vol 5 (S265) ◽

pp. 480-481 ◽

Cited By ~ 8

Author(s):

Steven R. Majewski ◽

John C. Wilson ◽

Fred Hearty ◽

Ricardo R. Schiavon ◽

Michael F. Skrutskie

Keyword(s):

Large Scale ◽

Near Infrared ◽

Milky Way ◽

Chemical Species ◽

Galactic Evolution ◽

Sloan Digital Sky Survey ◽

Red Giants ◽

Sky Survey ◽

Evolution Experiment ◽

Novel Design

AbstractThe Apache Point Observatory Galactic Evolution Experiment (APOGEE) is a large-scale, near-infrared (H-band), high-resolution (R ~ 30,000), high S/N (≳100) spectroscopic survey of Milky Way stellar populations. APOGEE will operate from 1.51–1.68μm, a region that includes useful absorption lines from at least fifteen chemical species including α, odd-Z, and iron peak elements. The APOGEE instrument has a novel design featuring 300 science fibers feeding light to a mosaiced VPH grating and a six-element camera encased in a liquid nitrogen-cooled cryostat. A three year bright-time observing campaign will enable APOGEE to observe approximately 100,000 red giants across the Galactic bulge, disk and halo.

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Final Targeting Strategy for the Sloan Digital Sky Survey IV Apache Point Observatory Galactic Evolution Experiment 2 North Survey

The Astronomical Journal ◽

10.3847/1538-3881/ac260c ◽

2021 ◽

Vol 162 (6) ◽

pp. 302

Author(s):

Rachael L. Beaton ◽

Ryan J. Oelkers ◽

Christian R. Hayes ◽

Kevin R. Covey ◽

S. D. Chojnowski ◽

...

Keyword(s):

Near Infrared ◽

Survey Design ◽

Target Selection ◽

Lessons Learned ◽

Galactic Evolution ◽

Sloan Digital Sky Survey ◽

Scientific Success ◽

Sky Survey ◽

Evolution Experiment ◽

Targeting Strategy

Abstract The Apache Point Observatory Galactic Evolution Experiment 2 (APOGEE-2) is a dual-hemisphere, near-infrared (NIR), spectroscopic survey with the goal of producing a chemodynamical mapping of the Milky Way. The targeting for APOGEE-2 is complex and has evolved with time. In this paper, we present the updates and additions to the initial targeting strategy for APOGEE-2N presented in Zasowski et al. (2017). These modifications come in two implementation modes: (i) “Ancillary Science Programs” competitively awarded to Sloan Digital Sky Survey IV PIs through proposal calls in 2015 and 2017 for the pursuit of new scientific avenues outside the main survey, and (ii) an effective 1.5 yr expansion of the survey, known as the Bright Time Extension (BTX), made possible through accrued efficiency gains over the first years of the APOGEE-2N project. For the 23 distinct ancillary programs, we provide descriptions of the scientific aims, target selection, and how to identify these targets within the APOGEE-2 sample. The BTX permitted changes to the main survey strategy, the inclusion of new programs in response to scientific discoveries or to exploit major new data sets not available at the outset of the survey design, and expansions of existing programs to enhance their scientific success and reach. After describing the motivations, implementation, and assessment of these programs, we also leave a summary of lessons learned from nearly a decade of APOGEE-1 and APOGEE-2 survey operations. A companion paper, F. Santana et al. (submitted; AAS29036), provides a complementary presentation of targeting modifications relevant to APOGEE-2 operations in the Southern Hemisphere.

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Testing homogeneity in the Sloan Digital Sky Survey Data Release Twelve with Shannon entropy

Monthly Notices of the Royal Astronomical Society ◽

10.1093/mnras/stv2166 ◽

2015 ◽

Vol 454 (3) ◽

pp. 2647-2656 ◽

Cited By ~ 16

Author(s):

Biswajit Pandey ◽

Suman Sarkar

Keyword(s):

Survey Data ◽

Shannon Entropy ◽

Sloan Digital Sky Survey ◽

Sky Survey ◽

Data Release ◽

Testing Homogeneity

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A New Catalog of Isolated Galaxies

Proceedings of the International Astronomical Union ◽

10.1017/s1743921310007064 ◽

2009 ◽

Vol 5 (S267) ◽

pp. 464-464

Author(s):

J. A. Vázquez-Mata ◽

H. M. Hernández-Toledo ◽

Changbom Park ◽

Yun-Young Choi

Keyword(s):

Galaxy Formation ◽

Environmental Effects ◽

Comparative Studies ◽

Sloan Digital Sky Survey ◽

Selection Algorithm ◽

Isolated Galaxies ◽

Galaxy Formation And Evolution ◽

Sky Survey ◽

Data Release ◽

Formation And Evolution

We present a new catalog of isolated galaxies (coined as UNAM–KIAS) obtained through an automated systematic search. The 1520 isolated galaxies were found in ~ 1.4 steradians of the sky in the Sloan Digital Sky Survey Data Release 5 (SDSS DR5) photometry. The selection algorithm was implemented from a variation of the criteria developed by Karachentseva (1973), with full redshift information. This new catalog is aimed to carry out comparative studies of environmental effects and constraining the currently competing scenarios of galaxy formation and evolution.

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