Properties of Circumstellar Envelopes of Be Stars from IR lines

Details Properties of Circumstellar Envelopes of Be Stars from IR lines Properties of Circumstellar Envelopes of Be Stars from IR lines

Aug 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006iaujd...8e..42g&link_type=abstract

Solar and Stellar Activity Cycles, 26th meeting of the IAU, Joint Discussion 8, 17-18 August 2006, Prague, Czech Republic, JD08,

Physics

Scientific paper

We have analyzed the formation of Hydrogen IR emission lines (Brackett, Pfund and Humphreys series) in Be stars on the basis of expanding extended atmosphere models with different temperature laws. We compared our calculated lines with IR spectroscopic observations in the L-band performed in the ESO Observatory Cerro Paranal, Chile. This allowed us to reveal physical characteristics of the circumstellar envelope and test possible departures of radiative equilibrium.

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