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The Evolution of Protostellar Outflow Cavities, Kinematics, and Angular Distribution of Momentum and Energy in Orion A: Evidence for Dynamical Cores

  • Authors: Cheng-Han Hsieh, 承翰 謝, Héctor G. Arce, Zhi-Yun Li, Michael Dunham, Stella Offner, Ian W. Stephens, Amelia Stutz, Tom Megeath, Shuo Kong, Adele Plunkett, John J. Tobin, Yichen Zhang, Diego Mardones, Jaime E. Pineda, Thomas Stanke, John Carpenter

Cheng-Han Hsieh et al 2023 The Astrophysical Journal 947 .

  • Provider: AAS Journals

Caption: Figure 4.

Average 13CO(2–1)/C18O(2–1) brightness temperature ratio in the redshifted outflow lobe of HOPS 169. The ratio is calculated for every velocity channel using data above 3σ within the outflow mask region. The blue points represent the data and the red line denotes the best-fit second-degree polynomial. The polynomial is truncated at the isotopic ratio of 8.7. The error bars represent the dispersion around the mean of the brightness temperature ratio across the redshifted outflow lobe.

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