Detection of CO and Ethane in Comet 21P/Giacobini-Zinner: Evidence for Variable Chemistry in the Outer Solar Nebula | Zendy

M. J. Mumma | Zendy; M. A. DiSanti | Zendy; N. Dello Russo | Zendy; K. MageeSauer | Zendy; T. W. Rettig | Zendy

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Detection of CO and Ethane in Comet 21P/Giacobini-Zinner: Evidence for Variable Chemistry in the Outer Solar Nebula

Author(s) -

M. J. Mumma,

M. A. DiSanti,

N. Dello Russo,

K. MageeSauer,

T. W. Rettig

Publication year - 2000

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/312530

Subject(s) - physics , comet , formation and evolution of the solar system , astrobiology , solar system , astrophysics , astronomy , nebula , carbon monoxide , astrochemistry , comet dust , interplanetary dust cloud , interstellar medium , stars , galaxy , biochemistry , chemistry , catalysis

Ethane and carbon monoxide were detected in a short-period comet of probable Kuiper Belt origin. Ethane is substantially less abundant compared with Hyakutake and Hale-Bopp, two comets from the giant-planet region of the solar nebula, suggesting a heliocentric gradient in ethane in precometary ices. It is argued that processing by X-rays from the young Sun may be responsible.

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