Mostrar el registro sencillo del ítem

The gravitational potential of axially symmetric bodies from a regularized green kernel

hal.structure.identifierFORMATION STELLAIRE 2011
dc.contributor.authorTROVA, Audrey
hal.structure.identifierFORMATION STELLAIRE 2011
dc.contributor.authorHURÉ, J.-M.
hal.structure.identifierFORMATION STELLAIRE 2011
dc.contributor.authorHERSANT, F.
dc.date.issued2011-12
dc.date.conference2011
dc.description.abstractEnThe determination of the gravitational potential inside celestial bodies (rotating stars, discs, planets, asteroids) is a common challenge in numerical Astrophysics. Under axial symmetry, the potential is classically found from a two-dimensional integral over the body's meridional cross-section. Because it involves an improper integral, high accuracy is generally difficult to reach. We have discovered that, for homogeneous bodies, the singular Green kernel can be converted into a regular kernel by direct analytical integration. This new kernel, easily managed with standard techniques, opens interesting horizons, not only for numerical calculus but also to generate approximations, in particular for geometrically thin discs and rings.
dc.language.isoen
dc.source.titleSF2A-2011: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics Eds.: G. Alecian, K. Belkacem, R. Samadi and D. Valls-Gabaud, pp.685-688, 2011
dc.subject.enGravitation
dc.subject.enMethods: analytical
dc.subject.enCelestial mechanics
dc.title.enThe gravitational potential of axially symmetric bodies from a regularized green kernel
dc.typeCommunication dans un congrès
dc.subject.halPlanète et Univers [physics]/Astrophysique [astro-ph]/Astrophysique stellaire et solaire [astro-ph.SR]
dc.subject.halPhysique [physics]/Astrophysique [astro-ph]/Astrophysique stellaire et solaire [astro-ph.SR]
bordeaux.page685-688
bordeaux.countryFR
bordeaux.title.proceedingSF2A-2011: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics Eds.: G. Alecian, K. Belkacem, R. Samadi and D. Valls-Gabaud, pp.685-688, 2011
bordeaux.conference.cityParis
bordeaux.peerReviewedoui
hal.identifierhal-00651355
hal.version1
hal.invitednon
hal.proceedingsoui
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00651355v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.btitle=SF2A-2011:%20Proceedings%20of%20the%20Annual%20meeting%20of%20the%20French%20Society%20of%20Astronomy%20and%20Astrophysics%20Eds.:%20G.%20Alecian,%20K.%20Belkacem,%20R.%&rft.date=2011-12&rft.spage=685-688&rft.epage=685-688&rft.au=TROVA,%20Audrey&HUR%C3%89,%20J.-M.&HERSANT,%20F.&rft.genre=unknown


Archivos en el ítem

ArchivosTamañoFormatoVer

No hay archivos asociados a este ítem.

Este ítem aparece en la(s) siguiente(s) colección(ones)

Mostrar el registro sencillo del ítem