Bibcode
Martín-Navarro, I.; Vazdekis, A.; Bongiovanni, A.; Falcón-Barroso, J.; Cepa, J.; Cenarro, J.; Sánchez-Blázquez, P.
Referencia bibliográfica
Highlights of Spanish Astrophysics VII, Proceedings of the X Scientific Meeting of the Spanish Astronomical Society (SEA), held in Valencia, July 9 - 13, 2012, Eds.: J.C. Guirado, L.M. Lara, V. Quilis, and J. Gorgas., pp.275-280
Fecha de publicación:
5
2013
Número de citas
0
Número de citas referidas
0
Descripción
We have developed an innovative `index scanning technique" to map the
stellar kinematics of early-type galaxies by measuring for the first
time the absorption line strength of the near-IR CaII triplet with the
Red Tunable Filters of OSIRIS at GTC. Unlike classical spectroscopy,
these filters allow us to perform a two-dimensional study, taking
advantage of a 10.4 meter class telescope with a unvignetted field of
view of 7.8 × 7.8 arcmin. We show the velocity fields obtained for
two Virgo elliptical galaxies of very different masses and their
globular cluster systems reaching galactocentric distances beyond 2
effective radii.