A Caltech Library Service

Characterizing the Atmospheres of Hot Jupiters: From Spectra to Multi-Color Maps

Knutson, Heather A. (2008) Characterizing the Atmospheres of Hot Jupiters: From Spectra to Multi-Color Maps. In: Transiting planets. IAU symposium and colloquium proceedings series. No.4. Cambridge University Press , Cambridge, pp. 255-261. ISBN 978-0-521-88984-1.

PDF - Published Version
See Usage Policy.


Use this Persistent URL to link to this item:


We present new observations of the emission spectrum of the hot Jupiter TrES-4 designed to test the theory that the presence of temperature inversions in the atmospheres of these planets are correlated with the amount of radiation received by the planet. Our observations reveal that TrES-4 has an emission spectrum similar to that of HD 209458b, which requires the presence of an inversion layer high in the atmosphere and water emission bands in order to explain the observed features, providing additional support for that theory. We also present new observations of the thermal phase curve of HD 189733b at 24 μm, which we combine with our previous observations at 8 μm to examine how circulation in this planet’s atmosphere varies as a function of depth. We discuss the relationship between the strength of the day-night circulation on both planets and their other observable properties, in particular their emission spectra.

Item Type:Book Section
Related URLs:
URLURL TypeDescription
Knutson, Heather A.0000-0002-0822-3095
Additional Information:© 2009 International Astronomical Union. Published online: 23 February 2009. This work is based on observations made with the Spitzer Space Telescope, which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract to NASA. Support for this work was provided by NASA through an award issued by JPL/Caltech. HAK was supported by a National Science Foundation Graduate Research Fellowship.
Funding AgencyGrant Number
NSF Graduate Research FellowshipUNSPECIFIED
Series Name:IAU symposium and colloquium proceedings series
Issue or Number:4
Record Number:CaltechAUTHORS:20130128-091851020
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:36610
Deposited By: Tony Diaz
Deposited On:30 Jan 2013 22:48
Last Modified:09 Nov 2021 23:23

Repository Staff Only: item control page