Near-IR speckle imaging of massive young stellar objects

Details Near-IR speckle imaging of massive young stellar objects Near-IR speckle imaging of massive young stellar objects

2004-07-05

arxiv.org/abs/astro-ph/0407079v1

Astron.Astrophys. 427 (2004) 505-518

Astronomy and Astrophysics

Astrophysics

17 pages, 16 figures, accepted for publication in A&A

Scientific paper

10.1051/0004-6361:20034438

We present near-IR speckle images of 21 massive Young Stellar Objects (YSOs) associated with outflows. The aim of this study is to search for sub-arcsecond reflection nebulae associated with the outflow cavity. We find that 6 of the massive YSOs show a conical nebula which can be interpreted in terms of reflected light from the dusty walls of the outflow cavity. In all cases, the small scale structures seen in our images are compared with outflow indicators found in the literature. No clear correlation is found between the presence of the reflection nebulosity and any property such as degree of embeddedness. We also note that 3 of the sources show close companions, one of them belonging also to the sample with conical nebula.

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