title: Ionization Feedback in Massive Star Formation
creator: Peters, Thomas
subject: ddc-530
subject: 530 Physics
description: Understanding the origin of high-mass stars is central to modern astrophysics. We shed light on this problem using novel radiation-hydrodynamic simulations that consistently follow the gravitational collapse of a massive molecular cloud, the subsequent build-up and fragmentation of the accretion disk surrounding the nascent star, and, for the first time, the interaction between its intense UV radiation field and the infalling material. We show that ionization feedback can neither stop protostellar mass growth nor suppress fragmentation. We present a consistent picture of the formation and evolution of H II regions that explains the observed morphology, time variability, and ages of ultracompact H II regions, solving the long-standing lifetime problem.
date: 2009
type: Dissertation
type: info:eu-repo/semantics/doctoralThesis
type: NonPeerReviewed
format: application/pdf
identifier: https://archiv.ub.uni-heidelberg.de/volltextserverhttps://archiv.ub.uni-heidelberg.de/volltextserver/10220/1/peters_dissertation.pdf
identifier: DOI:10.11588/heidok.00010220
identifier: urn:nbn:de:bsz:16-opus-102207
identifier:   Peters, Thomas  (2009) Ionization Feedback in Massive Star Formation.  [Dissertation]     
relation: https://archiv.ub.uni-heidelberg.de/volltextserver/10220/
rights: info:eu-repo/semantics/openAccess
rights: http://archiv.ub.uni-heidelberg.de/volltextserver/help/license_urhg.html
language: eng