Measurement of Methane Line Broadening in Hot Hydrogen/Helium Atmospheres at $\hat{I}»$ = 1.60-1.63 μm for Substellar Object Spectroscopy

Ko Hosokawa, Takayuki Kotani, Hajime Kawahara +4

Recent high-dispersion spectroscopy from ground-based telescopes and high-precision spectroscopy from space observatories have enabled atmospheric observations of substellar object…