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Revista mexicana de astronomía y astrofísica

Print version ISSN 0185-1101


MOLINA, R. E.. Determination of stellar atmospheric parameters for a sample of post-AGB stars. Rev. mex. astron. astrofis [online]. 2018, vol.54, n.2, pp.397-408. ISSN 0185-1101.

We report for the first time the stellar atmospheric parameters for a a set of post-AGB stars classified by Suárez et al. (2006). The stellar spectra were obtained in the optical region, with low-resolution and have different spectral ranges. We select a sample of 70 objects with A-K spectral types and luminosities I and Ie. The large majority of these objects have been scarcely studied and are located toward the galactic south pole region. We employ a set of empirical relationships that use pseudo-equivalent widths as spectral features to estimate the effective temperature, surface gravity and metallicity. The criteria chosen to select the absorption lines are similar to those employed by the MK classification system.

Keywords : stars: fundamental parameters; stars: AGB and post-AGB.

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