Infrared continuum radiation from red giants

Details Infrared continuum radiation from red giants Infrared continuum radiation from red giants

Jan 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...312..284r&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 312, Jan. 1, 1987, p. 284-289.

Astronomy and Astrophysics

Astrophysics

5

Continuous Spectra, Infrared Stars, Mira Variables, Red Giant Stars, Stellar Envelopes, Stellar Spectra, Late Stars, Stellar Mass, Stellar Models

Scientific paper

An analytical model is presented for the IR continuum radiation from red giant stars undergoing or recently having undergone rapid mass loss. The expanding circumstellar envelopes are expected to absorb most photospheric emissions, thereby rendering the red giants, e.g., Mira variables and OH/IR stars, undetectable at optical wavelengths. The model quantifies the radiative equilibrium between a dust grain and the surrounding radiation field. Predictions obtained with the model are shown to be useful for red giants which were detected by the IRAS but were not categorized due to the obscuring cirucmstellar envelope.

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