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Star Formation with ALMA

hal.structure.identifierAMOR 2018
dc.contributor.authorGUILLOTEAU, S.
dc.date.conference2018-03-03
dc.description.abstractEnStars are believed to form from interstellar material through the gravitational collapse of dusty clouds. Interstellar medium is a very dynamical environment in which clouds of atomic gas (and its associated dust counterpart) form in warm medium fragments, perhaps as a result of turbulence or the passage of shock, and subsequently cool down and condense. Although the dust is a tiny fraction (of order 1%) of the total material mass, it plays a major role in the cloud evolution because its opacity can shield the cloud center from the interstellar UV field and dust surfaces act as a catalyst on which molecular hydrogen can form. For high enough column density, the combined effect of dust shielding and self-shielding of H 22 turn the initially predominantly atomic gas into molecular form. H 22 forms first, but more and more complex species such as CO, CN, and HCN, form during cloud evolution.
dc.language.isoen
dc.subject.enPhysics
dc.title.enStar Formation with ALMA
dc.typeCommunication dans un congrès
dc.identifier.doi10.1007/978-3-662-57546-8_2
dc.subject.halPlanète et Univers [physics]/Astrophysique [astro-ph]/Cosmologie et astrophysique extra-galactique [astro-ph.CO]
bordeaux.countryCH
bordeaux.conference.cityLes Diablerets
bordeaux.peerReviewedoui
hal.identifierhal-01868326
hal.version1
hal.invitednon
hal.proceedingsnon
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01868326v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.au=GUILLOTEAU,%20S.&rft.genre=unknown


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