There is increasing observational evidence that hot, highly ionized interstellar and intergalactic gas plays a significant role in the evolution of galaxies in the local universe. The primary spectral diagnostics of the warm-hot interstellar/intergalactic medium are ultraviolet and X-ray absorption lines of Ovi and Ovii. In this paper, I summarize some of the recent highlights of spectroscopic ...

We present and validate a new network of atmospheric thermo-chemical photo-chemical sulfur reactions. use 1-D chemical kinetics model to investigate these reactions as part broader HCNO in series hot warm Jupiters. find that temperatures approaching $1400\,\mathrm{K}$ are favourable for the production H2S HS around $\mathrm{10^{-3}\,bar}$, level where detection by transit spectroscopy may be po...