Title:	Observations of the bright-rimmed molecular clouds near the Cepheus OB2 association
Authors:	Indrani, C. Sridharan, T.K.
Keywords:	Bright-rimmed clouds OB associations
Issue Date:	1994
Publisher:	Indian Academy of Sciences, Bangalore, India.
Citation:	Journal of Astrophysics and Astronomy, 1994, Vol.15, p157-163.
Abstract:	Massive stars have significant influence on the evolution of the interstellar medium. Bright rims, cometary morphology of clouds, as well as their motion are some examples of the influence of massive stars on nearby molecular clouds. The cometary clouds in the Gum-Vela region are very good examples. In an attempt to understand the kinematics of the clouds in such regions we have carried out CO line observations towards bright-rimmed clouds near the OB Association Cep OB2. The radial velocities of the clouds are consistent with an expansion of the system at approximately equals 4 kms-1 away from the dominant O6.5 V star in the association, HD206267. We find the rocket mechanism to be the most likely cause for expansion as found for both the Gum-Vela and the Rosette globules. We conclude that such expanding motions are quite common in regions near massive stars and make a brief comparison of the Cepheus system with the Gum- Vela system.
URI:	http://hdl.handle.net/2289/772
ISSN:	0250-6335
Copyright:	Indian Academy of Sciences, Bangalore, India.
Appears in Collections:	Research Papers (A&A)

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