Our analysis predicted that transit observations at shorter wavelengths would provide the best opportunity to discriminate between plausible scenarios. Indeed, a simultaneous and independent analysis using optical photometry shows strong evidence for Rayleigh scattering in GJ 3470b's atmosphere, consistent with an atmosphere dominated by a scattering haze. If this haze is not too optically thick, GJ 3470b's relatively deep primary transit, bright host star, and low density will permit a detailed characterization of its atmosphere via transmission spectroscopy during transit.
I am a postdoctoral fellow at the MPIA in Heidelberg, Germany. My interests lie in exoplanet formation, detection, and characterization, and the development of instrumentation to further those pursuits. I am currently studying extrasolar planets using both photometry and high-resolution spectroscopy. I have worked for three years at the Jet Propulsion Laboratory, and I received my doctorate from UCLA. I also maintain an online repository of useful Python computing tools.
Ian J. M. Crossfield
Office: MPIA 308/4
Heidelberg, D-69117, Germany