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28 March 2024
 
  » arxiv » astro-ph/0006433

 Article overview


Intrinsic colour calibration for F, G, K stars
Piercarlo Bonifacio ; Elisabetta Caffau ; Paolo Molaro ;
Date 29 Jun 2000
Subject astro-ph
Affiliation Osservatorio Astronomico di Trieste, Istituto Magistrale S.P.P. e L. annesso al Convitto Nazionale Paolo Diacono, S. Pietro al Nat. Udine
AbstractWe 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.
Source arXiv, astro-ph/0006433
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