Interferometry of pulsating red giants from 0.65 to 3.5 microns

Details Interferometry of pulsating red giants from 0.65 to 3.5 microns Interferometry of pulsating red giants from 0.65 to 3.5 microns

May 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aspc..310..327i&link_type=abstract

Variable Stars in the Local Group, IAU Colloquium 193, Proceedings of the conference held 6-11 July, 2003 at Christchurch, New Z

Astronomy and Astrophysics

Astronomy

6

Scientific paper

We present the results of two multi wavelength studies of the angular diameters of the Mira like stars o Cet, W Hya and R Leo. The MAPPIT experiment was able to deliver diameters of these stars over a continuous wavelength region from 0.65 - 1 micron, while the Keck aperture-masking experiment was able to deliver diameters between 1.2 and 3.5 microns. Strong size variations with wavelength were recorded for all stars, and we discuss the implications for model atmospheres of these stars, and speculate on the necessity of including dust scattering in radiative transfer calculations.

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