The nature of the cometary nebula 1548 C27

Bibcode
1989A&A...213..303V
Vilchez, J. M.; Mampaso, A.; Riera, A.; Phillips, J. P.
Referencia bibliográfica

Astronomy and Astrophysics (ISSN 0004-6361), vol. 213, no. 1-2, April 1989, p. 303-309.

Fecha de publicación:
4
1989
Número de autores
4
Número de autores del IAC
3
Número de citas
8
Número de citas referidas
7
Descripción
Results are presented on optical and near-IR photometry of cometary nebula 1548 C27, together with associated high and intermediate resolution spectroscopy of both the nebular core and jet outflow. Two IR sources were found, one of which, IRS 2, is clearly a reddened main-sequence star, the other, IRS 1, being a probable Herbig Ae/Be type central star with luminosity about 100 solar luminosities, distance about 0.9 kpc, and extinction about 5 mag. The spectroscopy of the nebular core shows evidence for both P-Cygni profiles, and a range of neutral and ionic line velocities consistent with an accelerated outflow with a terminal velocity greater than 700 km/sec. The spectroscopy of the jet outflow feature suggests a typical FWHM of about 70 km/sec, and a more-or-less constant line-of-sight velocity, suggesting little if any flow deceleration.
Tipo
Con árbitro
Estrellas A
Fotometría infrarroja
Estrellas antes de llegar a la secuencia principal
Nebulosas de reflexión
Formación estelar

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