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Propane on Titan

Roe, H. G. and Greathouse, T. K. and Richter, M. J. and Lacy, J. H. (2003) Propane on Titan. Astrophysical Journal, 597 (1). L65-L68. ISSN 0004-637X. doi:10.1086/379816.

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We present the first observations of propane (C_3H_8) on Titan that unambiguously resolve propane features from other numerous stratospheric emissions. This is accomplished using a R = λ/δλ ≈ 10^5 spectrometer (the Texas Echelon Cross Echelle Spectrograph) to observe propane's ν_(26) rotation-vibration band near 748 cm^(-1). We find a best-fit fractional abundance of propane in Titan's stratosphere of (6.2 ± 1.2) × 10^(-7) in the altitude range to which we are sensitive (90-250 km or 13-0.24 mbar).

Item Type:Article
Related URLs:
URLURL TypeDescription Paper
Richter, M. J.0000-0002-8594-2122
Lacy, J. H.0000-0001-6783-2328
Additional Information:© 2003. The American Astronomical Society. Received 2003 August 27; accepted 2003 September 18; published 2003 October 9. We thank several people who shared their time and advice, including especially L. Lara, B. Blass, G. Bjoraker, R. Gamache, V. Typke, and the referee. Observations with TEXES are supported by NSF grant AST 02-05518. T. K. G. and M. J. R. were supported by the SOFIA project through USRA grant 8500-98-005.
Funding AgencyGrant Number
NSFAST 02-05518
Universities Space Research Association (USRA)8500-98-005
Subject Keywords:infrared: solar system; molecular data; planets and satellites: individual (Titan)
Issue or Number:1
Record Number:CaltechAUTHORS:20170408-160402372
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Official Citation:H. G. Roe et al 2003 ApJ 597 L65
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:76120
Deposited By: 1Science Import
Deposited On:14 Jun 2017 16:20
Last Modified:15 Nov 2021 16:57

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