2014ApJ...789L..11V

Query : 2014ApJ...789L..11V

2014ApJ...789L..11V - Astrophys. J., 789, L11 (2014/July-1)

Cloud base signature in transmission spectra of exoplanet atmospheres.

VAHIDINIA S., CUZZI J.N., MARLEY M. and FORTNEY J.

Abstract (from CDS):

We present an analytical model for the transmission spectrum of a transiting exoplanet, showing that a cloud base can produce an observable inflection point in the spectrum. The wavelength and magnitude of the inflection can be used to break the degeneracy between the atmospheric pressure and the abundance of the main cloud material, however, the abundance still depends on cloud particle size. An observed inflection also provides a specific point on the atmospheric P-T profile, giving us a "thermometer" to directly validate or rule out postulated cloud species. We apply the model to the transit spectrum of HD 189733b.

Abstract Copyright: ∼

Journal keyword(s): methods: analytical - planets and satellites: atmospheres - radiative transfer - scattering

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 HD 189733b Pl 20 00 43.7129433648 +22 42 39.073143456           ~ 1610 1

Query : 2014ApJ...789L..11V

Basic data :
HD 189733b -- Extra-solar Planet
Other object types: otypes_help 		Pl? (), Pl (2005A&A), * (HD)
ICRS coord. (ep=J2000) : 		20 00 43.7129433648 +22 42 39.073143456 (Optical) [ 0.0097 0.0119 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		19 58 34.1039144743 +22 34 31.825058532 [ 0.0097 0.0119 90 ]
Gal coord. (ep=J2000) : 		060.9630654133127 -03.9222685127365 [ 0.0097 0.0119 90 ]
Proper motions mas/yr : 		-3.208 -250.323 [0.011 0.014 90] A 2020yCat.1350....0G
Parallaxes (mas): 		50.5668 [0.0162] A 2020yCat.1350....0G
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HD 189733b

References (1610 between 1850 and 2026) (Total 1610)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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HD 189733b

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