A Caltech Library Service

Calibration of the Lick red CCD bandpasses

Djorgovski, S. (1985) Calibration of the Lick red CCD bandpasses. Publications of the Astronomical Society of the Pacific, 97 (597). pp. 1119-1126. ISSN 0004-6280. doi:10.1086/131674.

[img] PDF (ADS) - Published Version
See Usage Policy.


Use this Persistent URL to link to this item:


Red bandpasses indigenous to the Lick Observatory CCD imaging and photometry are defined and described. A set of primary calibration standards which define the magnitude zero points is presented. Color equations, relating these bandpasses to the other, commonly used photometric systems are evaluated by numerical integration of stellar spectra, and compared to the real data. It is estimated that the present calibration is accurate and consistent to about 2-3 percent as a magnitude predictor, if the primary standards are used; this accuracy is only about 3-5 percent if VR photometry is used for calibration, and only about 5-8 percent if BV photometry is used. (These estimates do not include the errors of measurement). This is sufficient for most scientific applications of data taken in these bandpasses, although it may be improved somewhat in a future work.

Item Type:Article
Related URLs:
URLURL TypeDescription
Djorgovski, S.0000-0002-0603-3087
Additional Information:© 1985 Astronomical Society of the Pacific. Provided by the NASA Astrophysics Data System. Received 10 June 1985, revised 1985 July 12. Based in part on the research done at Lick Observatory, University of California. I am very grateful to the staff of Lick Observatory for their continuous help with the equipment and observations. CCD quantum efficiency curves were communicated by J. Miller and L. Robinson, and the lens transmission curves by R. Stover. Hy Spinrad invented the filters and helped in measurement of their transmission curves. Data used to construct Figure 8 were obtained by S. Kulkarni and P. McCarthy. Some of the software used for this work was developed by T. Lauer, R. Stover, and D. Terndrup. Marc Davis provided support, occasional help, and much needed prodding. Ivan King provided indoctrination on magnitudes and much good advice. I acknowledge helpful criticism of an anonymous referee. This work was partly supported by NSF grant AST 81-18557, and a University of California Regents fellowship.
Funding AgencyGrant Number
NSFAST 81-18557
University of CaliforniaUNSPECIFIED
Subject Keywords:photometry
Issue or Number:597
Record Number:CaltechAUTHORS:20190731-125856656
Persistent URL:
Official Citation:S. Djorgovski 1985 PASP 97 1119
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:97553
Deposited By: Tony Diaz
Deposited On:31 Jul 2019 20:08
Last Modified:16 Nov 2021 17:32

Repository Staff Only: item control page