Astronomy and Astrophysics (ISSN 0004-6361), vol. 218, no. 1-2, July 1989, p. 257-263. Research supported by CAICYT and SERC.
Bibcode
Phillips, J. P.; Mampaso, A.
Referencia bibliográfica
Fecha de publicación:
7
1989
Descripción
Nine type I post-main-sequence nebulae were observed in CO J = 2-1 using
the NRAO 12-m antenna at Kitt Peak. It is found that, at the most, 20
percent of type I sources have antenna temperatures of greater than 0.2
K. The results suggest secondary kinematic splitting of the primary
emission shell, and confirm the presence of high velocity outflows
distinguished by an anomalous spatiokinematic morphology.