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Disc signatures in a new population of low mass YSOs in Ophiuchi

作     者:De Oliveira, Catarina Alves Casali, Mark 

作者机构:ESO 85748 Garching bei München Karl-Schwarzschild-Str. 2 Germany 

出 版 物:《Proceedings of the International Astronomical Union》 (Proc. Int. Astron. Union)

年 卷 期:2007年第3卷第S249期

页      面:355-358页

学科分类:0709[理学-地质学] 07[理学] 0708[理学-地球物理学] 0704[理学-天文学] 0825[工学-航空宇航科学与技术] 

主  题:Activity Stars: pre-main-sequence 

摘      要:The deepest near-IR variability survey of the Ophiuchi cluster with the WFCAM/UKIRT has been used to uncover a new population of young low mass objects. Evidence for the existence of discs around the new objects has been found when combining data with IRAC/Spitzer observations. A new insight on the frequency and dynamics of discs around low mass YSOs is given, essential for understanding the origin and evolution of circumstellar discs and ultimately the environment for planet formation. © 2008 International Astronomical Union.

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