Department of Physics and Astronomy: Publications and Other Research

 

Date of this Version

8-1987

Document Type

Article

Citation

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC 99:868-876, August 1987

Comments

Copyright 1987 Astronomical Society of the Pacific. Provided by the NASA Astrophysics Data System.

Abstract

A general framework is given for the inversion of a "two-point" formulation of the Baade-Wesselink technique. This means that phases of equal radius are selected and used to get information regarding brightness and temperature. The inversion method is used to evaluate the surface brightness/(V -R) relation in two classical Cepheids, V482 Sco and R TrA. The slope found is consistent with previously reported values, but it is argued that the radius determinations will be very uncertain, Finally, a proposal is made for employing the B-W inversion to construct a parameterization for brightness and temperature. This leads to the determination of radii and, ultimately, of temperatures and luminosities as well.

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