Conferencia
Abstract:
Given the transit times of an exoplanet, which will differ from a Keplerian two-body series of transits if a second, non-transiting exoplanet is perturbing it, we solve the inverse problem of finding the six orbital elements and the mass of that second planet. This is equivalent to an optimization problem in seven dimensions, in which the function to minimize is some measure of the differences between the observed transits and the transits obtained with a three-body integration of the transiting planet and the invisible one; the seven dependent variables are the elements and the mass of the latter. We solve this formidable numerical problem in two stages, applying a genetic algorithm as a first step, and then polishing this result with a 7D simplex algorithm. We applied the algorithm to the Kepler-9 system, in which two planets transit and therefore the second planet has known orbital elements and mass.
Registro:
| Documento: | Conferencia |
| Título: | Distra: A code to find invisible exoplanets |
| Autor: | Carpintero, D.D.; Melita, M.D.; Miloni, O.I.; Arias E.F.; Allen C.; Orellana R.B. |
| Filiación: | Facultad de Ciencias Astronómicas y Geofísicas, UNLP, Paseo del Bosque S/N, La Plata, 1900, Argentina Instituto de Astrofísica de La Plata, UNLP-Conicet (CCT La Plata), Paseo del Bosque S/N, La Plata, 1900, Argentina Instituto de Astronomía y Física del Espacio, UBA-Conicet, Ciudad Universitaria, Buenos Aires, 1428, Argentina |
| Palabras clave: | Celestial mechanics; Planet-star interactions; Planets and satellites: dynamical evolution and stability |
| Año: | 2014 |
| Volumen: | 43 |
| Página de inicio: | 68 |
| Página de fin: | 70 |
| Título revista: | 5th Meeting of Dynamical Astronomy in Latin America, ADeLA 2012 |
| Título revista abreviado: | Rev.Mex. Astron. Astrofis. Ser. Conf. |
| ISSN: | 14052059 |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14052059_v43_n_p68_Carpintero |
Referencias:
- Charbonneau, P., (1995) ApJS, 101, p. 309
- Davis, L.D., (1991) Handbook of Genetic Algorithms, , New York: Van Nostrand Reinhold
- Holman, M.J., (2010) Science, 330, p. 51
- Press, W.H., Teukolsky, S.A., Vetterling, W.T., Flanney, B.P., (1992) Numerical Recipes in Fortran, , 2nd ed.; Cambridge: Cambridge Univ. PressA4 - Agencia Nacional de Promocion Cientifica y Tecnologica; Consejo Nacional de Investigaciones Cientificas y Tecnicas; Grupo Asegurador Rivadavia; Municipalidad de La Plata; Show Office; Universidad Nacional de La Plata
Citas:
---------- APA ----------
Carpintero, D.D., Melita, M.D., Miloni, O.I., Arias E.F., Allen C. & Orellana R.B. (2014) . Distra: A code to find invisible exoplanets. 5th Meeting of Dynamical Astronomy in Latin America, ADeLA 2012, 43, 68-70.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14052059_v43_n_p68_Carpintero [ ]
---------- CHICAGO ----------
Carpintero, D.D., Melita, M.D., Miloni, O.I., Arias E.F., Allen C., Orellana R.B. "Distra: A code to find invisible exoplanets" . 5th Meeting of Dynamical Astronomy in Latin America, ADeLA 2012 43 (2014) : 68-70.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14052059_v43_n_p68_Carpintero [ ]
---------- MLA ----------
Carpintero, D.D., Melita, M.D., Miloni, O.I., Arias E.F., Allen C., Orellana R.B. "Distra: A code to find invisible exoplanets" . 5th Meeting of Dynamical Astronomy in Latin America, ADeLA 2012, vol. 43, 2014, pp. 68-70.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14052059_v43_n_p68_Carpintero [ ]
---------- VANCOUVER ----------
Carpintero, D.D., Melita, M.D., Miloni, O.I., Arias E.F., Allen C., Orellana R.B. Distra: A code to find invisible exoplanets. Rev.Mex. Astron. Astrofis. Ser. Conf. 2014;43:68-70.Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14052059_v43_n_p68_Carpintero [ ]
