Infrared bolometric corrections for AGB stars with circumstellar shells

Astronomy and Astrophysics – Astrophysics

Scientific paper

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Asymptotic Giant Branch Stars, Infrared Stars, Mira Variables, Stellar Envelopes, Stellar Evolution, Astronomical Photometry, Bolometers, Color-Color Diagram, Infrared Spectra

Scientific paper

The two-color diagram based on the IRAS 12, 25, and 60-micron flux densities has proven to be a very useful tool for studying the evolution of stars with circumstellar shells that are at the top of the asymptotic giant branch (Van der Veen and Habing, 1988). For a proper analysis of the data it is essential to know the total flux, and therefore it is useful to define an infrared bolometric correction in terms of the IRAS photometry. In this paper, such an IR-bolometric correction is derived for AGB stars associated with different regions in the IRAS two-color diagram. These corrections can then be used in statistical studies that make use of the diagram.

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