Discrete survey of 5-cm OH emission from planetary and proto-planetary nebulae
Idioma
en
Communication dans un congrès
Este ítem está publicado en
Proceedings of the International Astronomical Union, IAU Symposium, Proceedings of the International Astronomical Union, IAU Symposium, Astrophysical Masers and their Environments, 12 to 16 March 2007, 2007, Alice Springs. 2007, vol. 242, p. 344-345
Resumen en inglés
We have undertaken a comprehensive search for the first excited state of OH emission (J=5/2, 2?3/2) in Planetary and Proto- Planetary Nebulae. With the Effelsberg telescope, we confirm the detection of Vy 2?2 and we present ...Leer más >
Palabras clave en inglés
Maser
stars: AGB and post-AGB
radio lines: stars