The authors present observations of VY CMa, W Hya, Orion A and R Leo in SiO J = 1-0, v = 1 and two masers taken with the Itapetinga Radio Telescope between March 1988 and October 1989.
Revista Mexicana de Astronomia y Astrofisica, vol. 21
- Pub Date:
- November 1990
- SiO Masers: Star Formation;
- SiO Masers: Variability;
- SiO Masers: Circumstellar Shells