Dynamical constraints on the quadrupole mass moment of the HD 209458 star
| dc.creator | Iorio, Lorenzo | |
| dc.date | 2006-09-25 | |
| dc.date | 2006-11-23 | |
| dc.date.accessioned | 2026-07-07T07:24:04Z | |
| dc.date.available | 2026-07-07T07:24:04Z | |
| dc.description | The aim of this paper is to dynamically constrain the quadrupole mass moment J_2 of the main-sequence HD 209458 star. The adopted method is the confrontation between the measured orbital period of its transiting planet Osiris and a model of it. Osiris is assumed to move along an equatorial and circular orbit. Our estimate, for given values of the stellar mass M and radius R and by assuming the validity of general relativity, is J_2=(3.5 +/- 385.1) 10^-5. Previous fiducial evaluations based on indirect, spectroscopic measurements yielded J_2\sim 10^-6: such a value is compatible with our result. | |
| dc.description | LaTex, 6 pages, no figures, 1 table, 21 references. One table and one reference added. Metadata updated | |
| dc.identifier | https://arxiv.org/abs/gr-qc/0609112 | |
| dc.identifier | http://arxiv.org/abs/gr-qc/0609112 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/116210 | |
| dc.subject | General Relativity and Quantum Cosmology | |
| dc.subject | Astrophysics | |
| dc.subject | Space Physics | |
| dc.title | Dynamical constraints on the quadrupole mass moment of the HD 209458 star | |
| dc.type | text |