skip to main content

SciTech ConnectSciTech Connect

Title: APASS Landolt-Sloan BVgri photometry of Rave stars. I. Data, effective temperatures, and reddenings

We provide AAVSO Photometric All-Sky Survey (APASS) photometry in the Landolt BV and Sloan g'r'i' bands for all 425,743 stars included in the fourth RAVE Data Release. The internal accuracy of the APASS photometry of RAVE stars, expressed as the error of the mean of data obtained and separately calibrated over a median of four distinct observing epochs and distributed between 2009 and 2013, is 0.013, 0.012, 0.012, 0.014, and 0.021 mag for the B, V, g', r', and i' bands, respectively. The equally high external accuracy of APASS photometry has been verified on secondary Landolt and Sloan photometric standard stars not involved in the APASS calibration process and on a large body of literature data on field and cluster stars, confirming the absence of offsets and trends. Compared with the Carlsberg Meridian Catalog (CMC-15), APASS astrometry of RAVE stars is accurate to a median value of 0.098 arcsec. Brightness distribution functions for the RAVE stars have been derived in all bands. APASS photometry of RAVE stars, augmented by 2MASS JHK infrared data, has been χ{sup 2} fitted to a densely populated synthetic photometric library designed to widely explore temperature, surface gravity, metallicity, and reddening. Resulting T {sub eff} andmore » E {sub B–V}, computed over a range of options, are provided and discussed, and will be kept updated in response to future APASS and RAVE data releases. In the process, we find that the reddening caused by a homogeneous slab of dust, extending for 140 pc on either side of the Galactic plane and responsible for E{sub B−V}{sup poles} = 0.036 ± 0.002 at the Galactic poles, is a suitable approximation of the actual reddening encountered at Galactic latitudes |b| ≥ 25°.« less
Authors:
;  [1] ;  [2] ;  [3] ;  [4] ; ;  [5] ;  [6] ; ;  [7] ;  [8] ;  [9] ; ;  [10] ;  [11] ;  [12] ;  [13] ; ;  [14] ;  [15] more »; « less
  1. INAF Osservatorio Astronomico di Padova, I-36012 Asiago (VI) (Italy)
  2. AAVSO, Cambridge, MA (United States)
  3. ANS Collaboration, c/o Astronomical Observatory, Padova (Italy)
  4. Faculty of Mathematics and Physics, University of Ljubljana, 1000 Ljubljana (Slovenia)
  5. Observatoire Astronomique, Université de Strasbourg, CNRS, 11 rue de l'université F-67000 Strasbourg (France)
  6. Sydney Institute for Astronomy, University of Sydney, NSW 2006 (Australia)
  7. Astronomisches Rechen-Institut, Zentrum für Astronomie der Universität Heidelberg, Mönchhofstr. 12-14, D-69120 Heidelberg (Germany)
  8. Mount Stromlo Observatory, RSAA, Australian National University, Weston Creek, Canberra, ACT 2611 (Australia)
  9. Jeremiah Horrocks Institute, University of Central Lancashire, Preston, PR1 2HE (United Kingdom)
  10. Institute of Astronomy, Cambridge University, Madingley Road, Cambridge CB3 0HA (United Kingdom)
  11. Kapteyn Astronomical Institute, University of Groningen, PO Box 800, 9700 AV Groningen (Netherlands)
  12. Lowell Observatory, Flagstaff, AZ (United States)
  13. Department of Physics and Astronomy, University of Victoria, Victoria, BC V8P 5C2 (Canada)
  14. Department of Physics and Astronomy, Macquarie University, NSW 2109 (Australia)
  15. Mullard Space Science Laboratory, University College London, Holmbury St. Mary, Dorking, RH5 6NT (United Kingdom)
Publication Date:
OSTI Identifier:
22342234
Resource Type:
Journal Article
Resource Relation:
Journal Name: Astronomical Journal (New York, N.Y. Online); Journal Volume: 148; Journal Issue: 5; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ACCURACY; APPROXIMATIONS; BRIGHTNESS; CALIBRATION; CATALOGS; COMPARATIVE EVALUATIONS; DATA ANALYSIS; DISTRIBUTION FUNCTIONS; GRAVITATION; LIBRARIES; METALLICITY; PHOTOMETRY; SKY; SLABS; STAR CLUSTERS; STARS; SURFACES