SIMBAD references

2013MNRAS.430.3422A - Mon. Not. R. Astron. Soc., 430, 3422-3431 (2013/April-3)

Thermal emission at 3.6-8 µm from WASP-19b: a hot Jupiter without a stratosphere orbiting an active star.

ANDERSON D.R., SMITH A.M.S., MADHUSUDHAN N., WHEATLEY P.J., COLLIER CAMERON A., HELLIER C., CAMPO C., GILLON M., HARRINGTON J., MAXTED P.F.L., POLLACCO D., QUELOZ D., SMALLEY B., TRIAUD A.H.M.J. and WEST R.G.

Abstract (from CDS):

We report detection of thermal emission from the exoplanet WASP-19b at 3.6, 4.5, 5.8 and 8.0 µm. We used the InfraRed Array Camera on the Spitzer Space Telescope to observe two occultations of WASP-19b by its host star. We combine our new detections with previous measurements of WASP-19b's emission at 1.6 and 2.09µm to construct a spectral energy distribution of the planet's dayside atmosphere. By comparing this with model-atmosphere spectra, we find that the dayside atmosphere of WASP-19b lacks a strong temperature inversion. As WASP-19 is an active star (logR'HK = -4.50±0.03), this finding supports the hypothesis of Knutson, Howard and Isaacson that inversions are suppressed in hot Jupiters orbiting active stars. The available data are unable to differentiate between a carbon-rich and an oxygen-rich atmosphere.

Abstract Copyright: © 2013 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2013)

Journal keyword(s): methods: data analysis - techniques: photometric - occultations - planets and satellites: atmospheres - planets and satellites: individual: WASP-19b - stars: individual: WASP-19

Simbad objects: 11

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2020.09.21-09:25:50

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