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High C/O Ratio and Weak Thermal Inversion in the Very Hot Atmosphere of Exoplanet WASP-12b
Nikku Madhusudhan, Joseph Harrington, Kevin B. Stevenson +16
The carbon-to-oxygen ratio (C/O) in a planet provides critical information about its primordial origins and subsequent evolution. A primordial C/O greater than 0.8 causes a carbide…
Possible thermochemical disequilibrium in the atmosphere of the exoplanet GJ 436b
Kevin B. Stevenson, Joseph Harrington, Sarah Nymeyer +7
The nearby extrasolar planet GJ 436b--which has been labelled as a 'hot Neptune'--reveals itself by the dimming of light as it crosses in front of and behind its parent star as see…
On the Orbit of Exoplanet WASP-12b
Christopher J. Campo, Joseph Harrington, Ryan A. Hardy +17
We observed two secondary eclipses of the exoplanet WASP-12b using the Infrared Array Camera on the Spitzer Space Telescope. The close proximity of WASP-12b to its G-type star resu…