Astrochemistry at the Dawn of Star and Planet Formation
Ζωντανή μετάδοση στις 3 Νοε 2016
Stars
and stellar systems in our Galaxy form within dense (~100,000 H2
molecules per cc) and cold (~10 K) fragments of interstellar molecular
clouds, called pre-stellar cores. Important chemical processes take
place at this early stage, such as isotope fractionation, production of
complex organic molecules and growth of thick icy mantles onto dust
grains, where water and organics are stored. These processes can affect
later phases of star and planet formation.
Molecules are unique
tracers of the dynamical and chemical evolution of star and planet
forming regions. Thus, astrochemistry is crucial to test theories and
shed light on our origins. In this talk I shall review the chemical and
physical structure of pre-stellar and protostellar cores, as well as
recent work on protoplanetary disks in their earliest phases of
evolution. Links to our Solar System will be made.
Speaker: Paola Caselli
Host: Eric Keto
and stellar systems in our Galaxy form within dense (~100,000 H2
molecules per cc) and cold (~10 K) fragments of interstellar molecular
clouds, called pre-stellar cores. Important chemical processes take
place at this early stage, such as isotope fractionation, production of
complex organic molecules and growth of thick icy mantles onto dust
grains, where water and organics are stored. These processes can affect
later phases of star and planet formation.
Molecules are unique
tracers of the dynamical and chemical evolution of star and planet
forming regions. Thus, astrochemistry is crucial to test theories and
shed light on our origins. In this talk I shall review the chemical and
physical structure of pre-stellar and protostellar cores, as well as
recent work on protoplanetary disks in their earliest phases of
evolution. Links to our Solar System will be made.
Speaker: Paola Caselli
Host: Eric Keto
Κατηγορία
Άδεια
- Τυπική άδεια YouTube
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