SiO Observations of Mass-Losing AGB Stars

Details SiO Observations of Mass-Losing AGB Stars SiO Observations of Mass-Losing AGB Stars

Feb 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995ap%26ss.224..421a&link_type=abstract

Astrophysics and Space Science, Volume 224, Issue 1-2, pp. 421-422

Astronomy and Astrophysics

Astrophysics

2

Stars: Agb, Stars: Variable, Stars: Mass-Loss

Scientific paper

We have observed the first overtone rotation-vibration absorption bands of SiO near λ = 4µm for a sample of 23 oxygen-rich Mira and Semiregular variables using the ESO NTT and IRSPEC. We discuss the strength of the SiO absorption in terms of the near infrared, IRAS and pulsational properties of the stars. Especially among the Miras there are big differences in the strength of the SiO bands between individual objects, which are probably due to pulsational variability.

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