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Molecular line radiative transfer in protoplanetary disks

dc.contributor.authorPAVLYUCHENKOV, Ya.
hal.structure.identifierA.N. Severtsov Institute of Ecology and Evolution
hal.structure.identifierMax-Planck-Institut für Astronomie [MPIA]
dc.contributor.authorSEMENOV, D.
hal.structure.identifierMax-Planck-Institut für Astronomie [MPIA]
dc.contributor.authorHENNING, Th.
hal.structure.identifierLaboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
hal.structure.identifierLaboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux [L3AB]
hal.structure.identifierObservatoire aquitain des sciences de l'univers [OASU]
dc.contributor.authorGUILLOTEAU, S.
hal.structure.identifierLaboratoire d'Astrophysique de Grenoble [LAOG]
hal.structure.identifierInstitut de RadioAstronomie Millimétrique [IRAM]
dc.contributor.authorPIÉTU, V.
dc.contributor.authorLAUNHARDT, R.
hal.structure.identifierLaboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
hal.structure.identifierLaboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux [L3AB]
hal.structure.identifierObservatoire aquitain des sciences de l'univers [OASU]
hal.structure.identifierLaboratoire d'Astrophysique de Grenoble [LAOG]
dc.contributor.authorDUTREY, Anne
dc.date.issued2007
dc.date.conference2007
dc.description.abstractEnWe analyze the line radiative transfer in protoplanetary disks using several approximate methods and a well-tested Accelerated Monte Carlo code. Uniform molecular abundances as well as those from a chemical model are adopted. Radiative transfer in low and high rotational lines of CO, C18O, HCO+, DCO+, HCN, CS, and H2CO is simulated. We find that the simple Local Thermodynamical Equilibrium (LTE) and Full Escape Probability (FEP) approaches are not accurate in some cases, while Large Velocity Gradient (LVG) and Vertical Escape Probability (VEP) methods can be safely applied. A new concept of interacting cells that allows to accelerate a Monte Carlo code by an order of magnitude is introduced.
dc.language.isoen
dc.source.title2007msl..confE.110P - AstrophysiqueMoleculaire/publications2007.php#comcongres2007 Publisher: S. Diana
dc.title.enMolecular line radiative transfer in protoplanetary disks
dc.typeCommunication dans un congrès
dc.subject.halPhysique [physics]/Astrophysique [astro-ph]/Cosmologie et astrophysique extra-galactique [astro-ph.CO]
dc.subject.halPlanète et Univers [physics]/Astrophysique [astro-ph]
bordeaux.page110
bordeaux.conference.titleMolecules in Space and Laboratory, meeting held in Paris, France, May 14-18, 2007
bordeaux.countryFR
bordeaux.title.proceeding2007msl..confE.110P - AstrophysiqueMoleculaire/publications2007.php#comcongres2007 Publisher: S. Diana
bordeaux.conference.cityParis
bordeaux.peerReviewedoui
hal.identifierhal-00265879
hal.version1
hal.invitednon
hal.proceedingsoui
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00265879v1
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