Giant bow shock pairs associated with herbig-haro jets

Details Giant bow shock pairs associated with herbig-haro jets Giant bow shock pairs associated with herbig-haro jets

Feb 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995ap%26ss.224..151o&link_type=abstract

Astrophysics and Space Science, Volume 224, Issue 1-2, pp. 151-154

Astronomy and Astrophysics

Astrophysics

Hh Objects, Bow Shocks, Episodic Outflows, Ysos

Scientific paper

Two pairs of giant (linear size ˜1 pc) bow shock structures have been discovered, each located symmetrically about HH 1/2 and HH 124. Their Herbig-Haro (HH) natures have been confirmed by narrow band CCD imaging on and off [SII] 6717/6731 and/or slit spectroscopy. Multiple bow shocks are known associated with a few HH objects such as HH 34, and are interpreted as evidence for recurrent outflow activity of the exciting sources. The giant bow shocks associated with HH 1/2 or HH 124 provide further, beautiful examples of this phenomenon and, with dynamical ages of nearly 20000 yr in both pairs, extend its timescale by more than an order of magnitude.

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