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A large scale survey of dense cores and molecular outflows in Ophiuchus

Published online by Cambridge University Press:  03 August 2017

Akira Mizuno ,
Satonori Nozawa ,
Takahiro Iwata  and
Yasuo Fukui
Akira Mizuno
Affiliation:
Department of Astrophysics, Nagoya University, Nagoya 464-01, Japan
Satonori Nozawa
Affiliation:
Research Institute of Atmospherics, Nagoya University, Toyokawa 442, Japan
Takahiro Iwata
Affiliation:
Department of Astrophysics, Nagoya University, Nagoya 464-01, Japan
Yasuo Fukui
Affiliation:
Department of Astrophysics, Nagoya University, Nagoya 464-01, Japan

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We have been surveying dense molecular cores in Ophiuchus region including ρ Oph, L234, and L43 with the 4m radio telescope at Nagoya University since 1985. We have already mapped ∼18° × 12° area with 2′ or 4′ grid spacing in 13CO (J=1-0) spectra. We have identified ∼50 dense cores (we call ”13CO cores”). Typical mass, density, and size of the 13CO cores are ∼20 M⊙, ∼3 × 103 cm−3, and ∼0.3 pc, respectively (Nozawa et al. 1990). We also surveyed molecular outflows in 12CO (J=1-0) spectra toward 13 IRAS point sources associated with 13CO cores in Ophiuchus. As a result of the survey, we have found 5 molecular outflows in the filamentary dark clouds and 5 regions exhibiting high velocity wings in the ρ Oph main body.

Type
Poster Sessions
Information
Symposium - International Astronomical Union , Volume 147: Fragmentation of Molecular Clouds and Star Formation , 1991 , pp. 462 - 463
Copyright
Copyright © Kluwer 1991 

References

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