Speaker
Description
At present, over 3,500 exoplanets have been discovered. In addition to the discovery of new exoplanets, the characterization of planetary atmosphere is a rapidly developing area. One method that is used to study planetary atmosphere is transmission spectroscopy, which measures the variation of transit depth with wavelength. Inflated exoplanets are favorable for transmission spectroscopy, due to their large atmospheric opacities. GJ3470b, a hot inflated Neptune exoplanet, was observed using Thai telescopes between 2013 and 2016. The GJ3470b transmission spectroscopic result favour an H/He-dominated haze (mean molecular weight 1.08 $\pm$ 0.20) with high particle abundance at high altitude and methane in its atmosphere. Moreover, the primary photometric results of our 2016-2017 observation season targets will also be provided.
