A Bok globule in the Orion nebula

We use an area scanner coupled with a monochromator to study the variation of the first four Balmer lines across a globule seen projected on the Orion nebula. The analysis demonstrates the reality of the globule and allows an estimate of the amount of foreground emission. We derive a mass for the gl...

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Bibliographic Details
Published in:Monthly notices of the Royal Astronomical Society 1992-09, Vol.258 (1), p.147-151
Main Authors: Schmidt, Edward G., Taylor, Donald J.
Format: Article
Language:English
Subjects:
Astronomy
Earth, ocean, space
Exact sciences and technology
H II regions
H ii regions. Emission and reflection nebulae
Interstellar medium (ism) and nebulae in milky way
interstellar medium: clouds
interstellar medium: individual objects: Orion nebula
Stellar systems. Galactic and extragalactic objects and systems. The universe
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Summary:We use an area scanner coupled with a monochromator to study the variation of the first four Balmer lines across a globule seen projected on the Orion nebula. The analysis demonstrates the reality of the globule and allows an estimate of the amount of foreground emission. We derive a mass for the globule between 0.002 and 0.0033 M⊙ under various assumptions. We conclude that the globule is too low in mass to be a protostar.
ISSN:0035-8711
1365-2966
DOI:10.1093/mnras/258.1.147