Stellar activity as a tracer of moving groups

Bibcode
2013A&A...552A..27M
DOI
10.1051/0004-6361/201219483
Pinfield, D. J.; Jones, H. R. A.; Rojo, P.; Jenkins, J. S.; Murgas, F.
Referencia bibliográfica

Astronomy and Astrophysics, Volume 552, id.A27, 8 pp.

Fecha de publicación:
4
2013
Revista
Astronomy and Astrophysics
Número de autores
5
Número de autores del IAC
1
Número de citas
29
Número de citas referidas
25
Descripción
We present the results of a study of the stellar activity in the solar neighborhood using complete kinematics (galactocentric velocities U, V, W) and the chromospheric activity index log R'HK. We analyzed the average activity level near the centers of known moving groups using a sample of 2529 stars and found that the stars near these associations tend to be more active than field stars. This supports the hypothesis that these structures, or at least a significant part of them, are composed of kinematically bound, young stars. We confirmed our results by using GALaxy Evolution EXplorer (GALEX) UV data and kinematics taken from the Geneva-Copenhagen Survey for the stars in the sample. Finally, we present a compiled catalog with kinematics and activities for 2529 stars and a list of potential moving group members selected based on their stellar activity level. Table 4 is available in electronic form at http://www.aanda.orgFull Table 1 is only available at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/552/A27
Proyectos relacionados
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Exoplanetas y Astrobiología

La búsqueda de vida en el Universo se ha visto impulsada por los recientes descubrimientos de planetas alrededor de otras estrellas (los llamados exoplanetas), convirtiéndose en uno de los campos más activos dentro de la Astrofísica moderna. En los últimos años los descubrimientos cada vez más numerosos de nuevos exoplanetas y los últimos avances

Enric
Pallé Bago
En ejecución
Tipo
Con árbitro
Barrio solar
Sistema Solar y Sistemas Planetarios (SEYSS)

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