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Title: Globular and Open Clusters Observed by SDSS/SEGUE: the Giant Stars

Journal Article · · The Astronomical Journal (Online)
 [1];  [1];  [2];  [3];  [4];  [5];  [6];  [7];  [8];  [1];  [9];  [10];  [11]
  1. Case Western Reserve Univ., Cleveland, OH (United States)
  2. Grove City College, PA (United States)
  3. Ewha Womans Univ., Seoul (Korea, Rep. of)
  4. Case Western Reserve Univ., Cleveland, OH (United States); Michigan State Univ., East Lansing, MI (United States)
  5. Case Western Reserve Univ., Cleveland, OH (United States); Univ. of Wisconsin, Madison, WI (United States)
  6. Australian National Univ., Canberra, ACT (Australia)
  7. Univ. of California, Santa Cruz, CA (United States)
  8. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
  9. Univ. of Notre Dame, IN (United States)
  10. The Ohio State Univ., Columbus, OH (United States)
  11. Pennsylvania State Univ., University Park, PA (United States)
+ Show Author Affiliations

We present griz observations for the clusters M92, M13 and NGC 6791 and gr photometry for M71, Be 29 and NGC 7789. In addition we present new membership identifications for all these clusters, which have been observed spectroscopically as calibrators for the SDSS/SEGUE survey; this paper focuses in particular on the red giant branch stars in the clusters. In a number of cases, these giants were too bright to be observed in the normal SDSS survey operations, and we describe the procedure used to obtain spectra for these stars. For M71, also present a new variable reddening map and a new fiducial for the gr giant branch. For NGC 7789, we derived a transformation from Teff to g-r for giants of near solar abundance, using IRFM Teff measures of stars with good ugriz and 2MASS photometry and SEGUE spectra. The result of our analysis is a robust list of known cluster members with correctly dereddened and (if needed) transformed gr photometry for crucial calibration efforts for SDSS and SEGUE.

Research Organization:
Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP)
Grant/Contract Number:
AC02-07CH11359
OSTI ID:
1249201
Report Number(s):
arXiv:1511.03606; FERMILAB-PUB-15-632-AE; 1423502
Journal Information:
The Astronomical Journal (Online), Vol. 151, Issue 1; ISSN 1538-3881
Publisher:
IOP PublishingCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 3 works
Citation information provided by
Web of Science

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Abundances and possible diffusion of elements in M67 stars text January 2013
A uvbyCaHbeta Analysis of the Old Open Cluster, NGC 6819 text January 2014
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An Improved Photometric Calibration of the Sloan Digital Sky Survey Imaging Data text January 2007
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Cited By (1)

Identifying Multiple Populations in M71 Using CN journal January 2020

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