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Issue A&A
Volume 458, Number 2, November I 2006
Page(s) L21 - L24
Section Letters
DOI http://dx.doi.org/10.1051/0004-6361:20066161



A&A 458, L21-L24 (2006)
DOI: 10.1051/0004-6361:20066161

Letter

A small jet in Chamaeleon I powered by a low-luminosity source

F. Comerón1 and B. Reipurth2

1  European Southern Observatory, Karl-Schwarzschild-Strasse 2, 85748 Garching bei München, Germany
    e-mail: fcomeron@eso.org
2  Institute for Astronomy, University of Hawaii, 640 N. Aohoku Place, Hilo, HI 96720, USA
    e-mail: reipurth@ifa.hawaii.edu

(Received 1 August 2006 / Accepted 6 September 2006)

Abstract
We report the discovery of a small bipolar Herbig-Haro jet, HH 872, powered by the low-luminosity source ESO-H$\alpha$ 574 in Chamaeleon I. The end-to-end projected size of the jet in [SII] images is only 3150 AU. Infrared images marginally resolve the central source showing a structure elongated perpendicularly to the jet axis, possibly a disk seen at a large angle with respect to the plane of the sky. The brightest feature of the jet, peaking at a distance of 1''6 from the central source, is likely to result from enhanced outflow activity in the last decade.


Key words: stars: low-mass, brown dwarfs -- stars: pre-main sequence -- ISM: jets and outflows



© ESO 2006


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