A carbon star outflow envelope about IC 418

Bibcode
1990Ap&SS.171..173P
DOI
10.1007/BF00646841
Phillips, J. P.; Riera, A.; Mampaso, A.
Referencia bibliográfica

(IAU, European Regional Astronomy Meeting, 11th, La Laguna, Spain, July 3-8, 1989) Astrophysics and Space Science (ISSN 0004-640X), vol. 171, no. 1-2, Sept. 1990, p. 173-176.

Fecha de publicación:
9
1990
Número de autores
3
Número de autores del IAC
0
Número de citas
4
Número de citas referidas
4
Descripción
The results of near-infrared mapping, optical spectroscopy, and millimetric CO J = 2-1 observations of the halo about IC 418 are presented. As a result, it is confirmed that NIR emission extends outside of the principal emission shell, and into a zone characterized by weak optical grain scattering and (in all probability) strong FIR emission. An analysis of the optical and FIR data suggests an overall shell mass of 0.026 solar mass (for an assumed distance 0.412 kpc), although the absence of associated CO emission suggests that the shell, if neutral, must possess a relatively low molecular abundance.
Tipo
Sin árbitro
Estrellas de carbono
Nebulosas planetarias

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