Expanding CO Shells in the Orion A Molecular Cloud

@article{Feddersen2018ExpandingCS,
  title={Expanding CO Shells in the Orion A Molecular Cloud},
  author={Jesse R. Feddersen and H'ector G. Arce and Shuo Kong and Yoshito Shimajiri and Fumitaka Nakamura and Chihomi Hara and Shun Ishii and Kazushige Sasaki and Ryohei Kawabe},
  journal={The Astrophysical Journal},
  year={2018},
  volume={862},
  pages={121}
}
  • Jesse R. Feddersen, H'ector G. Arce, +6 authors Ryohei Kawabe
  • Published 2018
  • Physics
  • The Astrophysical Journal
  • We present the discovery of expanding spherical shells around low to intermediate-mass young stars in the Orion A giant molecular cloud using observations of $^{12}$CO (1-0) and $^{13}$CO (1-0) from the Nobeyama Radio Observatory 45-meter telescope. The shells have radii from 0.05 to 0.85 pc and expand outward at 0.8 to 5 km/s. The total energy in the expanding shells is comparable to protostellar outflows in the region. Together, shells and outflows inject enough energy and momentum to… CONTINUE READING

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