Higher depletion of lithium in planet host stars: no age and mass effect

Bibcode
2010A&A...512L...5S
DOI
10.1051/0004-6361/201014125
Sousa, S. G.; Fernandes, J.; Israelian, G.; Santos, N. C.
Referencia bibliográfica

Astronomy and Astrophysics, Volume 512, id.L5

Fecha de publicación:
3
2010
Revista
Astronomy and Astrophysics
Número de autores
4
Número de autores del IAC
1
Número de citas
34
Número de citas referidas
28
Descripción
Recent observational work by Israelian et al. has shown that sun-like planet host stars in the temperature range 700 K < Teff < 5850 K have lithium abundances that are significantly lower than those observed for “single” field stars. In this letter we use stellar evolutionary models to show that differences in stellar mass and age are not responsible for the observed correlation. This result, along with the finding of Israelian et al., strongly suggest that the observed lithium difference is likely linked to some process related to the formation and evolution of planetary systems.
Proyectos relacionados
Imagen del Proyecto
Pruebas Observacionales de los Procesos de Nucleosíntesis en el Universo
Recientemente se han llevado a cabo varios análisis espectroscópicos de estrellas con planetas. Uno de los resultados más relevantes ha sido descubrir que las estrellas con planetas son en promedio más metálicas que las estrellas del mismo tipo espectral sin planetas conocidos (Santos, Israelian & Mayor 2001, A&A, 373, 1019; 2004, A&A, 415, 1153)
Garik
Israelian
En ejecución
Tipo
Con árbitro
Física estelar e interestelar (FEEI)

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