The Distribution of Optically-Identified Herbig-Haro Objects in the Taurus Dark Cloud

Details The Distribution of Optically-Identified Herbig-Haro Objects in the Taurus Dark Cloud The Distribution of Optically-Identified Herbig-Haro Objects in the Taurus Dark Cloud

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...211.1223k&link_type=abstract

American Astronomical Society, AAS Meeting #211, #12.23; Bulletin of the American Astronomical Society, Vol. 39, p.754

Astronomy and Astrophysics

Astronomy

Scientific paper

HΑ emission from photo-ionized and shock-excited nebulosity lies in the r band of the Sloan Digital Sky Survey (SDSS) and therefore has a distinctive color in SDSS multiband images of the sky. The imaging data for some 40 square degrees in the Taurus Dark Cloud has been mosaiced and searched for Herbig-Haro emission. There is very little photo-ionized gas in this region of low-mass star formation, and the HH objects are easily seen. About a third of the HH objects are newly identified. These include a small emission clump which is probably the working surface of the jet from FS Tau, and a pair of isolated small arcs with no obvious driving source. The dust clouds containing the driving YSOs are frequently hollowed out by the jets from the young stars, and the HH objects are seen to lie along the cavity walls. Several of the dark clouds in the Taurus complex which do not currently contain HH objects have very similar structures, which may be the fossil remains of now-defunct HH objects.
Based on data from the Sloan Digital Sky Survey (www.sdss.org). This research is supported by NASA via grant 1264472 to Princeton University.

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