Astronomy and Astrophysics – Astronomy
Scientific paper
May 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aas...198.4803m&link_type=abstract
American Astronomical Society, 198th AAS Meeting, #48.03; Bulletin of the American Astronomical Society, Vol. 33, p.850
Astronomy and Astrophysics
Astronomy
3
Scientific paper
In the course of a large and deep optical imaging survey covering more than 4 square degrees of the Taurus molecular cloud complex, the source PSC4158+2805 was imaged with CFH12k, a wide-field CCD mosaic imager operating at the prime focus of the Canada-France-Hawaii telescope. Images are obtained in RIz and Hα. For the first time the source appears extended, very nebulous, and with a striking bipolar appearance. The dark lane is interpreted in terms of a disk seen quasi edge-on. Surprisingly for Taurus, it also appears in silhouette against the background. A jet is also detected in Hα, perpendicular to the axis of the disk. Both sides of the jet are detected and a bow shock is seen more than 70 arcsecs to the North of the driving source. The jet is resolved and is not linear. PSC4158+2805 is very reminiscent of HH 30, an archetype of the low-mass star formation process. Properties of the disk and jets of this interesting new source will be discussed in details.
Cuillandre Jean Charles
Dougados Catherine
Fahlman Gregory G.
Forveille Thierry
Lai Olivier
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