How do we know what planets are made of when we can't send rovers out to dig up dirt and sample the air? Transmission spectroscopy! When exoplanets transit their host stars, they transmit and absorb starlight differently depending on the types of gases present in their atmosphere. Knowing the types of gases and their concentrations is important to understanding how these planets formed and evolved. I provide a quick overview of the technique, show some data of various planets taken by the Hubble Space Telescope, and discuss their implications.
|Type of contribution||Oral contribution (10 minutes)|