Depleted carbon monoxide in fragment C of the Jupiter-family comet 73P/Schwassmann-Wachmann 3

M. A. DiSanti, W. M. Anderson, G. L. Villanueva, B. P. Bonev, K. Magee-Sauer, E. L. Gibb, M. J. Mumma

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Abstract

Carbon monoxide emission was targeted in fragment C of the recently split Jupiter-family comet 73P/Schwassmann-Wachmann 3 during its 2006 apparition, using the Cryogenic Echelle Spectrograph (CSHELL) at the NASA IRTF on Mauna Kea, Hawaii. Simultaneous sounding with H2O near 4.65 μm revealed highly depleted CO, consistent with a mixing ratio of 0.5% ± 0.13%. Along with depleted CH3OH but nearly normal HCN, this may indicate that this comet formed in the inner giant planets' region or, alternatively, that it formed relatively late, after significant clearing of the protosolar nebula.

Original languageEnglish (US)
Pages (from-to)L101-L104
JournalAstrophysical Journal
Volume661
Issue number1 II
DOIs
StatePublished - May 20 2007

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

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    DiSanti, M. A., Anderson, W. M., Villanueva, G. L., Bonev, B. P., Magee-Sauer, K., Gibb, E. L., & Mumma, M. J. (2007). Depleted carbon monoxide in fragment C of the Jupiter-family comet 73P/Schwassmann-Wachmann 3. Astrophysical Journal, 661(1 II), L101-L104. https://doi.org/10.1086/518716