Modelling the Mg[b] Spectroscopic Index with the Tunable Filters of OSIRIS

Bibcode
2005RMxAC..24..225C
Cervantes-Rodríguez, J. L.; Vazdekis, A.; Cepa, J.
Bibliographical reference

II International GTC Workshop: Science with GTC 1st-light Instruments and the LMT (Eds. A. M. Hidalgo-Gámez, J. J. González, J. M. Rodríguez Espinosa, and S. Torres-Peimbert) Revista Mexicana de Astronomía y Astrofísica (Serie de Conferencias) Vol. 24, pp. 225-226 (2005) (http://www.astroscu.unam.mx/~rmaa/)

Advertised on:
12
2005
Number of authors
3
IAC number of authors
0
Citations
0
Refereed citations
0
Description
We present our first attempt to model a new metallicity indicator for old and intermediate aged stellar populations on the basis of the Mg[b] absorption index at λ ˜ 5175 Å. Model spectra of stellar populations are convolved with the responses of the Tunable Filters of OSIRIS-GTC to provide a photometric index matching the spectroscopic Mg[b]. The new index allows us to obtain galaxy images of this feature on the basis of a photometric approach, without the very high signal-to-noise requirements of the spectroscopic methods.
Type
Non-refereed
Galaxies
Star formation

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