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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 | 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. | Source: | arXiv, astro-ph/0006433 | Services: | Forum | Review | PDF | Favorites |
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