Hostname: page-component-6bf8c574d5-w79xw Total loading time: 0 Render date: 2025-02-21T14:57:36.995Z Has data issue: false hasContentIssue false
  • English
  • Français

Calibration of Photometric Systems from Homogeneous Spectrophotometric Data

Published online by Cambridge University Press:  04 August 2017

Lukas Labhardt  and
Roland Buser
Lukas Labhardt
Affiliation:
Astronomical Institute, University of Basel
Roland Buser
Affiliation:
Astronomical Institute, University of Basel

Extract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

The atlas of stellar spectrophotometric data published by Gunn and Stryker (GS, 1983) constitutes an extremely valuable tool for the evaluation and calibration of photometric systems. The resolution of the scanner fluxes (10 or 20 Å), given for a broad wavelength range (λλ 3160–10620 Å) and the systematic coverage of stellar types are (almost) ideal for calculating synthetic colors for Becker's (1946) photographic RGU system which has been extensively applied in galactic structure work (cf. Buser 1981). Since RGU photometry is tightly linked to UBV data (Steinlin 1968, Buser 1978b), the Gunn-Stryker atlas has been used in the present paper to evaluate these two systems and subsequently investigate the resulting calibration of the RGU colors in terms of MK spectral classification.

Type
Research Article
Information
Symposium - International Astronomical Union , Volume 111: Calibration of Fundamental Stellar Quantities , 1985 , pp. 519 - 521
Copyright
Copyright © Reidel 1985 

References

Becker, W. 1946, Veröff. Univ. Sternwarte Göttingen, 79.Google Scholar
Buser, R. 1978a, Astron. Astrophys., 62, 411.Google Scholar
Buser, R. 1978b, Astron. Astrophys., 62, 425.Google Scholar
Buser, R., (ed.) 1981, Galaktische Struktur und Entwicklung, preprint Astron. Inst. Univ. of Basel, No. 2, 271 pp.Google Scholar
Buser, R. and Kurucz, R. L. 1985, in IAU Symposium No. 111, Calibration of Fundamental Stellar Quantities, Hayes, D. S., Pasinetti, L. E., and Davis Philip, A. G. eds. (Reidel, Dordrecht), p.513.Google Scholar
Code, A. D. and Meade, M. R. 1979, Astrophys. J. Suppl., 39, 195.Google Scholar
FitzGerald, M. P. 1970, Astron. Astrophys. 4, 234.Google Scholar
Gunn, J. E. and Stryker, L. L. 1983, Astrophys. J. Suppl., 52, 121.Google Scholar
Heck, A., Egret, D., Jaschek, M. and Jaschek, C. 1984, IUE Low-Dispersion Spectra Reference Atlas - Part I. Normal Stars. ESA SP-1052. Paris.Google Scholar
Matthews, T. A. and Sandage, A. R. 1963, Astrophys. J., 138, 30.Google Scholar
Meade, M. R. and Code, A. D. 1980, Astrophys. J. Suppl., 42, 283.Google Scholar
Nicolet, B. 1978, Astron. Astrophys. Suppl., 34, 1.Google Scholar
Steinlin, U. W. 1968, Z. Astrophys., 69, 276.Google Scholar
Straižs, V. and Sviderskienė, Z. 1972, Bull. Vilnius Astron. Obs. 35.Google Scholar
Whitford, A. E. 1958, Astron. J., 63, 201.Google Scholar