ASTHROS

The ASTHROS experiment is a 2.5-meter diameter radio telescope operating in heterodyne spectro mode at 110-120 microns and around 260 microns. The experiment will be carried into the stratosphere by a balloon, where it will remain for 3 to 4 weeks, launching from the McMurdo base in Antarctica. Numerous observations are planned, primarily mapping hot (8000K) and ionized regions through N+ spectral lines to better characterize these areas, as well as the spectral lines of H2D+, D2H+, and HD in star-forming regions, with a particular focus on HD in a protoplanetary disk and in the giant planets of the solar system (depending on visibility).