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Eight years of spectra reveal two distinct populations of "exocomets" in the planetary system forming around Beta Pictoris, report Flavien Kiefer (Paris Institute of Astrophysics) and colleagues in the October 23rd Nature.
"Astronomers have been debating the details of atmospheric evaporation for years, and studying HD 189733B is our best opportunity for understanding the process," said Vincent Bourrier, researcher at the Paris Institute of Astrophysics.
He earned his master's in physics from Gaza's Islamic University, a doctorate from the Paris Institute of Astrophysics and, following a brief return to Gaza, was hired by Virginia Tech on a yearlong grant.