On the Kinematic Deconvolution of the Local Luminosity Function
| Autor: | C. Pichon, A. Siebert, Éric Thiébaut, O. Bienaymé |
|---|---|
| Přispěvatelé: | Observatoire astronomique de Strasbourg (ObAS), Université de Strasbourg (UNISTRA)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Centre de Recherche Astrophysique de Lyon (CRAL), École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2002 |
| Předmět: |
Physics
education.field_of_study Population General Engineering Astronomy and Astrophysics Astrophysics::Cosmology and Extragalactic Astrophysics Kinematics Astrophysics Stars Thin disk [SDU]Sciences of the Universe [physics] Space and Planetary Science Thick disk Astrophysics::Solar and Stellar Astrophysics Astrophysics::Earth and Planetary Astrophysics Halo Deconvolution education Stellar evolution Astrophysics::Galaxy Astrophysics |
| Zdroj: | "EAS Publications Series "EAS Publications Series, 0000, à renseigner, Unknown Region. pp.375-377 |
| ISSN: | 1638-1963 1633-4760 |
| DOI: | 10.1051/eas:2002039 |
| Popis: | International audience; A method for inverting the equation of stellar statistic including proper motions is tested. The supplementary constraint required by dynamical consistency is used in order to break the degeneracy. The inversion gives access to both the kinematics and the luminosity function of each population. Its application to data such as the Tycho catalog (and in the near future GAIA) will lead - provided the vertical potential, and/or the asymmetric drift or w_odot are known - to a non-parametric determination of the local neighbourhood luminosity function without any reference to stellar evolution tracks. It should also yield the proportion of stars for each kinematic component and a kinematic diagnostic to split the thin disk from the thick disk or the halo. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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