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Complex organic molecules tracing the comet-forming zones in protoplanetary disks

Published online by Cambridge University Press:  12 October 2020

Catherine Walsh Open the ORCID record for Catherine Walsh [Opens in a new window]  and
John D. Ilee
Catherine Walsh
Affiliation:
School of Physics and Astronomy, University of Leeds, Leeds LS2 9JT, UK email: [email protected]
John D. Ilee
Affiliation:
School of Physics and Astronomy, University of Leeds, Leeds LS2 9JT, UK email: [email protected]
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Abstract

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Resolved emission from gas-phase methanol can reveal the abundance and distribution of the comet-forming ice reservoir in protoplanetary disks. ALMA Cycle 4 observations of four transitions of gas-phase methanol in TW Hya allow the first model-independent determination of the rotational temperature of methanol in a prototoplanetary disk. The data confirm that the methanol is rotationally cold (Trot < 50 K), and well constrain the column density to 2 × 1012 cm−2. Astrochemical models will constrain the chemical origin of methanol in TW Hya.

Keywords

astrochemistryplanetary systems: protoplanetary disks
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 15 , Symposium S350: Laboratory Astrophysics: From Observations to Interpretation , April 2019 , pp. 463 - 464
Copyright
© International Astronomical Union 2020

References

Bergner, J. B., Guzmán, V. V, Öberg, K. I., Loomis, R. A., & Peagues, J. 2018, ApJ, 857, 69 CrossRefGoogle Scholar
Favre, C., Fedele, D., Semenov, D., et al. 2018, ApJL, 862, L2 CrossRefGoogle Scholar
Loomis, R., Cleeves, L. I., Öberg, K. I., et al. 2018a, ApJ, 859, 131 CrossRefGoogle Scholar
Loomis, R., Öberg, K. I., Andrews, S. M., et al. 2018b, AJ, 155, 182 CrossRefGoogle Scholar
Ö, K. I., Guzmán, V. V., Furuya, K., et al. 2015, Nature, 520, 198 Google Scholar
Walsh, C., Millar, T. J., Nomura, H., et al. 2014, A&A, 563, 33 Google Scholar
Walsh, C., Loomis, R. A., Ö, K. I., et al. 2016, ApJL, 823, L10 CrossRefGoogle Scholar
Watanabe, N. & Kouchi, A. 2002, ApJL, 571, L173 Google Scholar