2000/06/29 by P. Bonifacio, Piercarlo Bonifacio, E. Caffau +3 · 11 citations
Physics and Astronomy · #Astronomy and Astrophysical Research #Calibration #Cepheid variable #Line (geometry) #Offset (computer science) #Photometry (optics) #Scientific Research and Discoveries #Stars #Stellar, planetary, and galactic studies #astro-ph
paper · pdf · doi:10.1051/aas:2000253
published in Astronomy & Astrophysics Supplement Series 145(3), 473-479 (EDP Sciences) · To be published in A&AS
arxiv created 2000/06/29 · openalex publication_date 2000/09/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We derive an intrinsic colour calibration for F–K stars using broad band Johnson colours and line indices KP and . Through this calibration we can determine of an individual star within 0.03 mag. The values thus derived are in excellent agreement with those derived from Strömgren 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.