Analysis of infrared photometry of Algol

Details Analysis of infrared photometry of Algol Analysis of infrared photometry of Algol

Jan 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984ap%26ss..98..163m&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 98, no. 1, Jan. 1984, p. 163-169.

Astronomy and Astrophysics

Astronomy

4

Eclipsing Binary Stars, Infrared Astronomy, Infrared Photometry, Stellar Spectrophotometry, Variable Stars, Atmospheric Models, Photosphere, Stellar Atmospheres, Stellar Color

Scientific paper

Infrared (JHKLM) photometry of β Per, due to Zeilik (1980), has been analysed by computer-based optimization methods. The data have been used primarily to find empirical mean flux ratios as known IR wavelengths for the two photospheres of the eclipsing pair. These flux ratios have then been compared with values predicted by various model atmosphere calculations. The ratio of effective temperatures can be given as TB/TA = 0.42±0.02, but there remains some small discrepancy between the empirical results and model calculations at the longest wavelengths (KLM). The possibility of "IR-excess" at longer wavelengths is considered, but the evidence is marginal.

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