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Photometric Calibrators for All-Sky Surveys: The GSPC-II Program

Published online by Cambridge University Press:  26 July 2016

A. Ferrari
Affiliation:
Osservatorio Astronomico di Torino, 10025 Pino Torinese, Italy
E.D. Siciliano
Affiliation:
Space Telescope Science Institute, Baltimore, MD, U.S.A.
A. Pizzuti
Affiliation:
Osservatorio Astronomico di Torino, 10025 Pino Torinese, Italy
B. Bucciarelli
Affiliation:
Osservatorio Astronomico di Torino, 10025 Pino Torinese, Italy Space Telescope Science Institute, Baltimore, MD, U.S.A.
G. Massone
Affiliation:
Osservatorio Astronomico di Torino, 10025 Pino Torinese, Italy
M. Postman
Affiliation:
Space Telescope Science Institute, Baltimore, MD, U.S.A.
D.M. Rehner
Affiliation:
Space Telescope Science Institute, Baltimore, MD, U.S.A. Astronomy Programs, Computer Sciences Corporation
C.R. Sturch
Affiliation:
Space Telescope Science Institute, Baltimore, MD, U.S.A. Astronomy Programs, Computer Sciences Corporation
M.G. Lattanzi
Affiliation:
Osservatorio Astronomico di Torino, 10025 Pino Torinese, Italy Space Telescope Science Institute, Baltimore, MD, U.S.A. Astrophysics Dept., SSD, ESA
B.M. Lasker
Affiliation:
Space Telescope Science Institute, Baltimore, MD, U.S.A.

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Accurate astrometric and photometric calibrations of all-sky photographic surveys, such as the Palomar Quick-V survey and the UK SERC-J survey, digitised for the construction of the Hubble Space Telescope Guide Star Catalog, are of extreme astrophysical value. Their wide range of applications includes, for example, galactic structure, stellar populations, extragalactic studies, and deep sky catalogs for mission planning and telescope operations. The Guide Star Photometric Catalog (GSPC-I, Lasker et al. 1988) provides stellar calibration sequences, placed approximately in the center of each survey plate, with a limiting magnitude of V = 15 mag. The goal of our program is to extend these calibrators to V = 20 mag in the Johnson-Kron-Cousins B, V and R passbands, with an accuracy of 0.05 mag. This is accomplished by taking CCD frames centered on the faintest star of each GSPC-I sequence. Typically, both long and short exposures are acquired in each field in order to link the bright and faint ends of the sequence.

Type
Part Six: Calibration: Astrometric and Photometric
Copyright
Copyright © Kluwer 1994 

References

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