A CO (J = 3-2) Outflow Survey of the Elias 29 Region

• Published in: The Astrophysical journal Vol. 657; no. 1; pp. L33 - L36
• Main Authors: Bussmann, R. S, Wong, T. W, Hedden, A. S, Kulesa, C. A, Walker, C. K
• Format: Journal Article
• Language: English
• Published: Chicago, IL IOP Publishing 01-03-2007; University of Chicago Press
• Subjects: Astronomy; Earth, ocean, space; Exact sciences and technology; Stellar winds; stars: formation; Jets; clouds-ISM: jets and outflows; Star formation; stars: winds, outflows- submillimeter
• ISSN: 1538-4357; 0004-637X; 1538-4357
• DOI: 10.1086/513101

We present a 5 x 5 integrated intensity map of super(12)CO (J= 3-2) emission from the r Ophiuchi cloud core that traces low-luminosity outflow emission from two protostars: Elias 29 and, most likely, LFAM 26. The morphology of the outflow from Elias 29 is bipolar and has a curved axis that traces the S-shaped symmetry seen in H sub(2) emission. The outflow from LFAM 26 is a new detection and oriented in the east-west direction near the plane of the sky with most of the blueshifted emission being absorbed by intervening clouds. The outflow axis of this object also appears to intersect a knot of H sub(2) emission previously attributed to Elias 29. LFAM 26 is a low-luminosity source (L sub(bol) = 0.06 L ), which, in combination with the observed outflow, makes it a candidate very low luminosity object (VeLLO). We derive lower limits to the gas column densities and energetics for both outflows. The mechanical luminosities for Elias 29 and LFAM 26 are 6.4 and 10.3 x 10 super(-3) L , respectively.