Nobeyama 45 m mapping observations toward Orion A. II. Classification of cloud structures and variation of the 13CO/C18O abundance ratio due to far-UV radiation

@article{Ishii2019Nobeyama4M,
  title={Nobeyama 45 m mapping observations toward Orion A. II. Classification of cloud structures and variation of the 13CO/C18O abundance ratio due to far-UV radiation},
  author={Shun Ishii and Fumitaka Nakamura and Yoshito Shimajiri and Ryohei Kawabe and Takashi Tsukagoshi and Kazuhito Dobashi and Tomomi Shimoikura},
  journal={Publications of the Astronomical Society of Japan},
  year={2019},
  volume={71}
}
  • Shun Ishii, Fumitaka Nakamura, +4 authors Tomomi Shimoikura
  • Published 2019
  • Physics
  • Publications of the Astronomical Society of Japan
  • We present results of the classification of cloud structures toward the Orion A Giant Molecular Cloud based on wide-field $^{12}$CO ($J$ = 1--0), $^{13}$CO ($J$ = 1-0), and C$^{18}$O ($J$ = 1-0) observations using the Nobeyama 45 m radio telescope. We identified 78 clouds toward Orion A by applying Spectral Clustering for Interstellar Molecular Emission Segmentation (SCIMES) to the data cube of the column density of $^{13}$CO. Well-known subregions such as OMC-1, OMC-2/3, OMC-4, OMC-5, NGC 1977… CONTINUE READING

    References

    Publications referenced by this paper.
    SHOWING 1-10 OF 64 REFERENCES