Minho Choi and Youngung Lee 1998 ApJ 498 L71 doi:10.1086/311292
Minho Choi1 and Youngung Lee2
Show affiliationsWe observed the H13CO+ J=1→0 line toward the driving source of the Herbig-Haro object HH 1-2 system using the Berkeley-Illinois-Maryland Association interferometer and the Taeduk Radio Astronomy Observatory telescope. Our map shows a 37'' (0.08 pc) scale elongation around VLA 2 and a bulge around VLA 1. The elongation is nearly perpendicular to the HH 1-2 axis as previously observed in the HCO+ 4 → 3 line. We suggest that this molecular core is a toroidal structure around a newly formed star. While VLA 1 has been considered the central object of the system, because of its higher brightness, our map shows that VLA 2 is more closely associated with the molecular core.
ISM: individual (HH 1-2); ISM: molecules; ISM: structure; stars: formation
Issue 1 (1998 May 1)
Received 1997 September 30, accepted for publication 1998 February 26
Published 1998 April 7
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