Intrinsic colour calibration for F, G, K stars
Open Access
- 15 September 2000
- journal article
- Published by EDP Sciences in Astronomy and Astrophysics Supplement Series
- Vol. 145 (3) , 473-479
- https://doi.org/10.1051/aas:2000253
Abstract
We derive an intrinsic colour calibration for F--K stars using broad band Johnson colours and line indices KP and HP2. Through this calibration we can determine E(B-V) of an individual star within 0.03 mag. The E(B-V) values thus derived are in excellent agreement with those derived from Stromgren photometry through the Schuster & Nissen (1989) calibration. The agreement is also good with the reddening maps of Burstein & Heiles (1982) and Schlegel et al (1998), although in this case there exists a small offset of about 0.01 mag. This calibration may be applied to the large body of data of the HK survey extension which will be published in the near future.Comment: To be published in A&AKeywords
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