A Molecular Disk Survey of Low-Mass Stars in the TW Hya Association. Issue Volume 10:Issue S314(2015) (November 2015)

• Record Type: Journal Article
• Authors: Rodriguez, David R.; van der Plas, Gerrit; Kastner, Joel H.; Schneider, Adam C.; Faherty, Jacqueline K.; Mardones, Diego; Mohanty, Subhanjoy; Principe, David
• Editors: Kastner, J. H.; Stelzer, B.; Metchev, S. A.
• Is Part Of: Proceedings of the International Astronomical Union. Volume 10:Issue S314(2015)
• Page Start: 207
• Page End: 208
• Publication Date: 2015-11
• Subjects: open clusters and associations: individual (TWA)—protoplanetary disks—stars: evolution—stars: pre-main sequence; Astronomy -- Congresses; Astronomy -- Periodicals; 520
• DOI: 10.1017/S174392131500616X
• Languages: English
• ISSNs: 1743-9213

Abstract

Abstract: We have carried out an ALMA Cycle 2 survey of 15 confirmed or candidate low-mass (<0.2 M ⊙ ) members of the TW Hya Association (TWA) with the goal of detecting line emission from CO molecular gas and continuum emission from cold dust. Our targets have spectral types of M4-L0 and hence represent the extreme low end of the TWA's mass function. The survey has yielded a detection of 12 CO(2–1) emission around TWA 34. This newly discovered ~10 Myr-old molecular gas disk lies just ~50pc from Earth.