Star formation : circumstellar environment around Young Stellar Objects

dc.contributor.author	Manoj, P
dc.date.accessioned	2006-03-15T08:41:02Z
dc.date.available	2006-03-15T08:41:02Z
dc.date.issued	2005-09
dc.identifier.citation	BASI, Vol. 33, No. 3, pp. 327-331	en
dc.identifier.uri	http://hdl.handle.net/2248/789
dc.description.abstract	In this thesis we have undertaken a detailed study of the evolution of young circumstellar disks from the early pre-main sequence phase to the main sequence phase. We have used several observational diagnostics of the disks such as emission-lines, infrared excess and polarization, and have followed their evolution in time. From our study, we show that the accretion activity in intermediate mass young stars declines rapidly and is terminated in about 3-5 Myr. The inner disk is found to dissipate on similar timescale. Further, we show that the optical depth of the circumstellar dust disks decreases steadily with increasing stellar age from the early pre-main sequence phase to the late main sequence phase	en
dc.format.extent	107673 bytes
dc.format.mimetype	application/pdf
dc.language.iso	en	en
dc.publisher	Astronomical Society of India	en
dc.subject	circumstellar matter -- stars	en
dc.subject	formation -- stars	en
dc.subject	pre-main se- quence -- stars	en
dc.subject	activity -- stars	en
dc.title	Star formation : circumstellar environment around Young Stellar Objects	en
dc.type	Article	en