Bibcode
Montes, David; Tabernero, H. M.; Gonzalez Hernandez, J. I.; Caballero, J. A.
Bibliographical reference
Astronomy of Exoplanets with Precise Radial Velocities, held August 16-19, 2010 Penn State University University Park, PA, USA. Online at http://exoplanets.astro.psu.edu/workshop, id.P12
Advertised on:
8
2010
Citations
1
Refereed citations
0
Description
During our detailed study of the kinematics of the know exoplanets hots stars
(Montes et al. 2010, Caballero et al. 2010) we have identified possible
members of the classical moving groups with ages between 10 and 600 Myr (e.g.
Local Association, Castor, Ursa Majoris, IC 2391, Hyades). In order to
constraint their actual youth and possible membership we are applying
age-dating methods for late-type stars, such as lithium abundances,
chromospheric and coronal emissions, colour-magnitude diagrams and isochrones.
The detailed analysis of the chemical signatures (chemical tagging) is another
powerful method that provide clear constrains to the membership to these
structures (Tabernero et al. 2010). In this contribution, we focus on the list
of exoplanets hots stars possible member of the Hyades Supercluster and report
the results obtained from our chemical tagging analysis. Stellar atmospheric
parameters (Teff, log g, and [Fe/H]) have been determined using an automatic
code which takes into account the sensibility of iron EWs measured in the
spectra. The chemical tagging method has been applied with a carefully
differential abundance analysis of each candidate member of the Hyades
Supercluster, using a well-known member of the Hyades cluster as reference. We
identify two exoplanet-host star Hyades cluster known members (ɛ Tau
and V833 Tau) and eight Hyades Supercluster candidate members.