Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26a...262..491l&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 262, no. 2, p. 491-500.
Astronomy and Astrophysics
Astronomy
45
Astronomical Interferometry, Molecular Spectra, Silicon Oxides, Stellar Evolution, Thermal Emission, Variable Stars, Line Spectra, Radio Astronomy, Stellar Mass
Scientific paper
Interferometric observations of the SiO v = 0 J = 2-1 emission from the O-rich evolved stars RX Boo, VY CMa, R Cas, Omicron Cet, NML Cyg, W Hya, R Leo, IK Tau, IRC + 10011, and IRC + 10420, the carbon star IRC + 10216, and the S-type star Chi Cyg are reported. Except for IRC + 10216, the source diameters do not vary with radial velocity; this behavior is not expected for envelopes expanding with an almost constant velocity, which would have a clear maximum at the central velocities, and shows that the terminal velocity is not yet attained at distances of the order of 5 x 10 exp 15 from the star. It is suggested that such a phenomenon is due to grain formation extending over a region comparable to the SiO emitting shell, which is much larger than previously believed.
Bachiller Rafael
Baudry Alain
Bujarrabal Valentin
Cernicharo Jose
Delannoy Jean
No associations
LandOfFree
Interferometric observations of SiO V = 0 thermal emission from evolved stars does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Interferometric observations of SiO V = 0 thermal emission from evolved stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Interferometric observations of SiO V = 0 thermal emission from evolved stars will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1761312