Mira's Apparent Size Variations due to a Surrounding Semiopaque H2O Layer

Details Mira's Apparent Size Variations due to a Surrounding Semiopaque H2O Layer Mira's Apparent Size Variations due to a Surrounding Semiopaque H2O Layer

Aug 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004apj...611l..37w&link_type=abstract

The Astrophysical Journal, Volume 611, Issue 1, pp. L37-L40.

Astronomy and Astrophysics

Astronomy

31

Infrared: Stars, Stars: Agb And Post-Agb, Stars: Atmospheres, Stars: Individual: Constellation Name: Ο Ceti, Techniques: Interferometric

Scientific paper

The variations in Mira's apparent size across the near- and mid-infrared are explained in terms of a single H2O shell surrounding the star. This simple model, consisting of a 2200 K H2O shell of column density 7×1019 cm-2 and radius 30.3 mas surrounding a 2700 K star of radius 12.8 mas, successfully reproduces a wide variety of interferometric and photometric observations that have been made near maximum phase.

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