The Cygnus X region XXII . A probable HAeBe star with a giant bipolar outflow in DR 16
نویسنده
چکیده
From medium-resolution radio images, DR 16 was suspected to be a large cometary nebula. To test this suggestion we obtained a higher resolution (15′′) VLA continuum map. We also analyzed data from the Canadian Galactic Plane Survey in continuum, H i line, and IR. These data were supplemented by published near-infrared (J, H, K) stellar photometric results and MSX 8.28 μm data. We suggest that DR 16 is the diffuse H ii region of an ongoing star formation site at a distance of about 3 kpc. The complicated radio picture arises from the superposition of diffuse H ii with the remains of a giant bipolar outflow. The outflow was generated by a probable Herbig AeBe star, and the lobes are the remnants of its working surfaces. Additional ring-like features are discussed. DR 16 is part of a larger volume of space in the local spiral arm where star formation is an ongoing
منابع مشابه
Jets , accretion , coronae and all that : The enigmatic X - rays from the Herbig star HD 163296 ⋆ ⋆ ⋆
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