SHOCKED MOLECULAR-HYDROGEN EMISSION IN THE BIPOLAR OUTFLOW NGC-6334-I

Citation
P. Persi et al., SHOCKED MOLECULAR-HYDROGEN EMISSION IN THE BIPOLAR OUTFLOW NGC-6334-I, Astronomy and astrophysics, 307(2), 1996, pp. 591-598
Citations number
31
Categorie Soggetti
Astronomy & Astrophysics
Journal title
ISSN journal
00046361
Volume
307
Issue
2
Year of publication
1996
Pages
591 - 598
Database
ISI
SICI code
0004-6361(1996)307:2<591:SMEITB>2.0.ZU;2-L
Abstract
Sub-arcsec images in the J, H, K and H-2 and nearby continuum of the b ipolar outflow NGC 6334 I are presented. Three knots of Hz emission ar e found which coincide with recently discovered NH3(3,3) masers. Two o f these are aligned along the CO bipolar outflow, indicating that the hydrogen molecular emission is shock excited. We have also detected a loop-shaped infrared nebula extending to the east of the massive mid-i nfrared source IRS 1 which illuminates the reflection nebula. IRS1 con sists of at least four components in the near-infrared. The interactio n of the stellar wind from these young stellar objects with the surrou nding medium could excite the third H-2 emission knot and associated a mmonia maser.