dc.contributor.author |
Ninan, J. P |
|
dc.contributor.author |
Ojha, D. K |
|
dc.contributor.author |
Bhatt, B. C |
|
dc.contributor.author |
Mallick, K. K |
|
dc.contributor.author |
Tej, A |
|
dc.contributor.author |
Sahu, D. K |
|
dc.contributor.author |
Ghosh, S. K |
|
dc.contributor.author |
Mohan, V |
|
dc.date.accessioned |
2013-02-18T11:06:50Z |
|
dc.date.available |
2013-02-18T11:06:50Z |
|
dc.date.issued |
2012 |
|
dc.identifier.citation |
ASI Conference Series, Vol. 4, pp. 1-8 |
en |
dc.identifier.isbn |
978-81-922926-2-5 |
|
dc.identifier.uri |
http://hdl.handle.net/2248/5992 |
|
dc.description |
Open Access |
en |
dc.description.abstract |
The FU Orionis (FUor) or EX Orionis (EXor) phenomenon has attracted increasing attention in recent years and is now accepted as a crucial element in the early evolution of low-mass stars. FUor and EXor eruptions of young stellar objects (YSOs) are caused by strongly enhanced accretion from the surrounding disk. FUors display optical outbursts of &sim 4 mag or more and last for several decades, whereas EXors show smaller outbursts (Δ m ∼ 2 - 3 mag) that last from a few months to a few years and may occur repeatedly. Therefore, FUor/EXor eruptions represent a rare but very important phenomenon in early stellar evolution, during which a young low-mass YSO brightens by up to several optical magnitudes. Hence, long-term observations of this class of eruptive variables are important to design theoretical models of low-mass star formation. In this paper, we present recent results from our long-term monitoring observations of three rare types of eruptive young variables with the 2-m Himalayan Chandra Telescope (HCT) and the 2-m IUCAA Girawali Observatory (IGO) telescope. |
en |
dc.language.iso |
en |
en |
dc.publisher |
Astronomical Society of India |
en |
dc.relation.uri |
http://www.ncra.tifr.res.in:8081/~basi/ASICS_4/Abstracts/dkojha.html |
en |
dc.rights |
© Astronomical Society of India |
en |
dc.subject |
Stars |
en |
dc.subject |
Formation – stars |
en |
dc.subject |
Pre-main-sequence – stars |
en |
dc.subject |
Variables |
en |
dc.subject |
Other – ISM |
en |
dc.subject |
Clouds -- (ISM:) reflection nebulae |
en |
dc.title |
The outburst and nature of young eruptive low mass stars in dark clouds |
en |
dc.type |
Article |
en |