Barnard 18,LBN 812 (DG 37) ,Herbig Haro 319,466,467,468 (Taurus) END
Latest image: More resolution at :
The B18 cloud is one of the most active sites of protostellar
outflow production in Taurus.The central part of the B18 cloud located about 40 (1.6 pc)
west of IRAS 04325+2402 contains a concentration of a dozen
young stars including ZZ, HK, FY, and FZ Tau, and several
previously known HH objects such as HH 393 near ZZ Tauri
(Gomez et al. 1997), HH 319 (Haro et al. 1953).The new images clearly show that HH 319
located about 1 northeast of FY and FZ Tau, is a bow shock
with an orientation indicating motion toward the southeast. Thus
these two nearby stars are not associated with this outflow,
whose source must be an embedded infrared object located in the
dark cloud to the northwest. HH 319 S is a compact 10 diameter
partial ring of emission located about 30 due south of HH 319
near FY and FZ Tau. The northern part of the ring is brightest.
References:
DEEP IMAGING SURVEYS OF STAR-FORMING CLOUDS. V. NEW HERBIG–HARO
SHOCKS AND GIANT OUTFLOWS IN TAURUS
John Bally, Josh Walawender, and Bo Reipurth
The Astronomical Journal, 144:143 (7pp), 2012 November doi:10.1088/0004-6256/144/5/143
C 2012. The American Astronomical Society.
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