Saturn's Stratospheric Acetylene And Ethane Emission

Brigette E. Hesman, D. E. Jennings, P. V. Sada, G. L. Bjoraker, A. A. Simon-Miller, C. A. Nixon, R. J. Boyle, G. H. McCabe

Research output: Contribution to journalArticle

Abstract

Hydrocarbons in the upper atmosphere of Saturn are known, from Voyager and early Cassini results, to vary in emission intensity with latitude. Of particular interest is the marked increase in temperature and hydrocarbon line intensity near the South Pole (Greathouse et al. 2005, Orton and Yanamandra-Fisher, 2005, Flasar et al. 2005). Latitudinal variations in hydrocarbon abundances can be determined from measurements of hydrocarbon emission lines using temperatures derived from Cassini’s Composite InfRared Spectrometer (CIRS). Latitudinal, temporal, and vertical variations of stratospheric hydrocarbons provide constraints on dynamics, seasonal climate models, and photochemical models. In an effort to monitor temporal and latitudinal variations of hydrocarbons in Saturn’s southern hemisphere we are conducting a ground-based campaign using Celeste, an infrared (5-25 μm) high-resolution (
Original languageEnglish
JournalAmerican Astronomical Society Meeting 210
Volume210
Publication statusPublished - 1 May 2007
Externally publishedYes

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ethane
acetylene
Saturn
hydrocarbon
upper atmosphere
Southern Hemisphere
climate modeling
spectrometer
temperature

Cite this

Hesman, B. E., Jennings, D. E., Sada, P. V., Bjoraker, G. L., Simon-Miller, A. A., Nixon, C. A., ... McCabe, G. H. (2007). Saturn's Stratospheric Acetylene And Ethane Emission. American Astronomical Society Meeting 210, 210.
Hesman, Brigette E. ; Jennings, D. E. ; Sada, P. V. ; Bjoraker, G. L. ; Simon-Miller, A. A. ; Nixon, C. A. ; Boyle, R. J. ; McCabe, G. H. / Saturn's Stratospheric Acetylene And Ethane Emission. In: American Astronomical Society Meeting 210. 2007 ; Vol. 210.
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Hesman, BE, Jennings, DE, Sada, PV, Bjoraker, GL, Simon-Miller, AA, Nixon, CA, Boyle, RJ & McCabe, GH 2007, 'Saturn's Stratospheric Acetylene And Ethane Emission', American Astronomical Society Meeting 210, vol. 210.

Saturn's Stratospheric Acetylene And Ethane Emission. / Hesman, Brigette E.; Jennings, D. E.; Sada, P. V.; Bjoraker, G. L.; Simon-Miller, A. A.; Nixon, C. A.; Boyle, R. J.; McCabe, G. H.

In: American Astronomical Society Meeting 210, Vol. 210, 01.05.2007.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Saturn's Stratospheric Acetylene And Ethane Emission

AU - Hesman, Brigette E.

AU - Jennings, D. E.

AU - Sada, P. V.

AU - Bjoraker, G. L.

AU - Simon-Miller, A. A.

AU - Nixon, C. A.

AU - Boyle, R. J.

AU - McCabe, G. H.

PY - 2007/5/1

Y1 - 2007/5/1

N2 - Hydrocarbons in the upper atmosphere of Saturn are known, from Voyager and early Cassini results, to vary in emission intensity with latitude. Of particular interest is the marked increase in temperature and hydrocarbon line intensity near the South Pole (Greathouse et al. 2005, Orton and Yanamandra-Fisher, 2005, Flasar et al. 2005). Latitudinal variations in hydrocarbon abundances can be determined from measurements of hydrocarbon emission lines using temperatures derived from Cassini’s Composite InfRared Spectrometer (CIRS). Latitudinal, temporal, and vertical variations of stratospheric hydrocarbons provide constraints on dynamics, seasonal climate models, and photochemical models. In an effort to monitor temporal and latitudinal variations of hydrocarbons in Saturn’s southern hemisphere we are conducting a ground-based campaign using Celeste, an infrared (5-25 μm) high-resolution (

AB - Hydrocarbons in the upper atmosphere of Saturn are known, from Voyager and early Cassini results, to vary in emission intensity with latitude. Of particular interest is the marked increase in temperature and hydrocarbon line intensity near the South Pole (Greathouse et al. 2005, Orton and Yanamandra-Fisher, 2005, Flasar et al. 2005). Latitudinal variations in hydrocarbon abundances can be determined from measurements of hydrocarbon emission lines using temperatures derived from Cassini’s Composite InfRared Spectrometer (CIRS). Latitudinal, temporal, and vertical variations of stratospheric hydrocarbons provide constraints on dynamics, seasonal climate models, and photochemical models. In an effort to monitor temporal and latitudinal variations of hydrocarbons in Saturn’s southern hemisphere we are conducting a ground-based campaign using Celeste, an infrared (5-25 μm) high-resolution (

M3 - Article

VL - 210

JO - American Astronomical Society Meeting 210

JF - American Astronomical Society Meeting 210

ER -

Hesman BE, Jennings DE, Sada PV, Bjoraker GL, Simon-Miller AA, Nixon CA et al. Saturn's Stratospheric Acetylene And Ethane Emission. American Astronomical Society Meeting 210. 2007 May 1;210.