CORS Baade-Wesselink distance to the LMC NGC 1866 blue populous cluster

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DOIResolve DOI: http://doi.org/10.1088/0004-637X/748/1/69
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TypeArticle
Journal titleThe Astrophysical Journal
ISSN0004-637X
Volume748
Issue1
Article number69
AbstractWe used optical, near-infrared photometry, and radial velocity data for a sample of 11 Cepheids belonging to the young LMC blue populous cluster NGC 1866 to estimate their radii and distances on the basis of the CORS Baade-Wesselink method. This technique, based on an accurate calibration of surface brightness as a function of (U - B), (V - K) colors, allows us to estimate, simultaneously, the linear radius and the angular diameter of Cepheid variables, and consequently to derive their distance. A rigorous error estimate on radii and distances was derived by using Monte Carlo simulations. Our analysis gives a distance modulus for NGC 1866 of 18.51 ± 0.03mag, which is in agreement with several independent results. © 2012 The American Astronomical Society. All rights reserved.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); NRC Herzberg Institute of Astrophysics (HIA-IHA)
Peer reviewedYes
NPARC number21269366
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Record identifierfa89ed4b-1ab1-48e1-881a-796fbf21e6c2
Record created2013-12-12
Record modified2016-07-18
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