Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995mnras.275..711p&link_type=abstract
Monthly Notices of the Royal Astronomical Society, Volume 275, Issue 3, pp. 711-719.
Astronomy and Astrophysics
Astronomy
8
Stars: Formation, Stars: Pre-Main-Sequence, Ism: Individual: Hh124, Ism: Jets And Outflows, Ism: Reflection Nebulae, Infrared: Stars
Scientific paper
We report our findings from near-infrared imaging of the Herbig-Haro object HH124. The outflow driving source is found to be deeply embedded near the symmetry centre of the outflow. This near-infrared source, which we identify with IRAS 06382+1017, is associated with an infrared reflection nebula. The reflection nebula morphology and the spatial distribution of H_2 emission in the vicinity of HH124D lead us to propose, as one possibility, the existence of two outflows. An alternative interpretation of the reflection nebula morphology is reflection off a dusty torus situated in the equatorial plane of IRAS 06382+1017. We also report a tentative detection of Brgamma emission associated with IRAS 06382+1017. This emission may originate from the circumstellar accretion disc's boundary layer or from a stellar wind, and indicates that IRAS 06382+1017 is a young, active T Tauri star. The H_2 1-0 S(1) emission in HH124 is clumpy, especially in HH124C. The overall spatial distribution of the H_2 emission in the different shock fronts is consistent with emission on the wings of bow shocks with a higher shock velocity for HH124C than for HH124E.
Howard Eric M.
Piche' Francois
Pipher Judith L.
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