A homogeneous distance catalogue for Galactic RV Tauri objects
| Autor: | David J. Frew, Matt S. Owers, Ivan S. Bojičić, Shane B. Vickers, Quentin A. Parker |
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| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Physics
Stellar population Cepheid variable Astrophysics::High Energy Astrophysical Phenomena FOS: Physical sciences Flux Astronomy and Astrophysics Astrophysics Astrophysics::Cosmology and Extragalactic Astrophysics Luminosity Photometry (astronomy) Stars Astrophysics - Solar and Stellar Astrophysics Space and Planetary Science Homogeneous Astrophysics::Solar and Stellar Astrophysics Solar and Stellar Astrophysics (astro-ph.SR) Astrophysics::Galaxy Astrophysics |
| Popis: | A subset of Post-AGB (PAGB) objects are the highly luminous RV Tauri variables that show similarities to Type-II Cepheids. By using a sample of known RV Tauri stars from the Magellanic Clouds we are able to determine period luminosity relationships (PLRs) in various bands that have been used to determine the luminosities of their Galactic counterparts. We have gathered all available photometry in order to generate an SED for each object and determine the total integrated flux. This total flux combined with a calculated or inferred intrinsic luminosity leads to a distance (Vickers et al. 2015). This distance catalogue has allowed us to begin to constrain the physical parameters of this poorly understood evolutionary phase and to determine links between these physical characteristics as a function of their stellar population. 2 pages, 1 figure, to appear in the Proceedings of IAU Symposium 323 (Planetary Nebulae: Multi-Wavelength Probes of Stellar and Galactic Evolution), eds. Xiaowei Liu, Letizia Stanghellini, and Amanda Karakas |
| Databáze: | OpenAIRE |
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