How an exoplanet’s transits reveal starspots on HAT-P-11.
If we don’t understand starspots, we won’t understand exoplanet atmospheres.
Besides our Earth, lightning has also been observed on Jupiter and Saturn, identified by the optical flash or the radio signal. In today’s bite, the authors take an even further step. They analyze whether lightning can explain the mysterious radio signals from the exoplanet HAT-P-11b.
HAT-P-11b is a Neptune-size transiting exoplanet with water in its atmosphere. Here we discuss the first detection of its secondary eclipse.
The orbits of some recently discovered exoplanets seem to be synchronised with the rotation of their host stars. Can this mystery be explained?