Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984mnras.206...37b&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 206, Jan. 1, 1984, p. 37-46.
Astronomy and Astrophysics
Astronomy
4
Astronomical Photometry, Astronomical Spectroscopy, B Stars, Nebulae, Anisotropy, Bipolarity, Photosphere, Ray Tracing, Stellar Envelopes, Stellar Spectra
Scientific paper
The bipolar nebula at longitude 310 deg in the galactic plane, discovered by Bruck (1983), is a symmetrical, butterfly-shaped object whose central star is fainter in blue than the extensive lobes. The object is interpreted as a B8 star illuminating the side nebulae through gaps in a circumstellar obscuring cloud whose extinction, estimated in view of both photometric and geometrical considerations, is 3 mag. IR excess in the central star indicates a dust temperature of 780 K. The existence of the H-alpha and H-beta lines in emission in a spectrum of the central star suggests that it is surrounded by a nonisotropically radiating chromosphere whose light does not reach the side lobes. While appearing to be a newly formed star, the object is unique in being found inside an isolated Bok globule of some 50 solar masses.
Bruck Mary T.
Godwin Philip J.
No associations
LandOfFree
Photometric and spectroscopic observations of an unusual bipolar nebula in a BOK globule does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Photometric and spectroscopic observations of an unusual bipolar nebula in a BOK globule, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photometric and spectroscopic observations of an unusual bipolar nebula in a BOK globule will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-937614