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- W1576965568 abstract "We have applied the Baade-Wesselink method to two field RR Lyrae stars, i.e. SW And and RR Cet, and derived their distances and physical parameters. With respect to previous B-W analyses we have applied the following improvements: a) use of all sets of available data, after proper comparison for homogeneity and compatibility; b) use of the most recent and accurate model atmospheres, with turbulent velocity V(turb) = 4 km/s and the no-overshooting approximation, and comparison with other treatments of convection; c) use of the instantaneous gravity along the pulsation cycle rather than the mean value; d) comparison with modified radial velocity curves according to various assumptions on radial velocity gradients in the atmosphere; and e) careful reanalysis of the temperature scale. The main aim of this study is to evaluate the effect of the above items on the B-W results and verify whether any (or a combination) of them can possibly account for the discrepancy of the absolute magnitude zero-point with respect to other independent determinations." @default.
- W1576965568 created "2016-06-24" @default.
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- W1576965568 date "1999-09-21" @default.
- W1576965568 modified "2023-09-27" @default.
- W1576965568 title "Revised Baade-Wesselink Analysis of RR Lyrae Stars" @default.
- W1576965568 hasPublicationYear "1999" @default.
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