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Title:
Local Group evolved stellar populations in the near infrared. .
Authors:
Gullieuszik, M.; Held, E. V.; Rizzi, L.; Girardi, L.; Marigo, P.; Momany, Y.; Saviane, I.; Ortolani, S.
Affiliation:
AA( INAF- Osservatorio Astronomico di Padova, Vicolo dell'Osservatorio 5, I - 35122 Padova, Italy.), AB( INAF- Osservatorio Astronomico di Padova, Vicolo dell'Osservatorio 5, I - 35122 Padova, Italy.), AC(Joint Astronomy Centre, 660 N. A'ohoku Place, University Park, Hilo, HI 96720, USA), AD( INAF- Osservatorio Astronomico di Padova, Vicolo dell'Osservatorio 5, I - 35122 Padova, Italy.), AE(Dipartimento di Astronomia, Universitàdi Padova, vicolo dell'Osservatorio 2, I-35122 Padova, Italy), AF( INAF- Osservatorio Astronomico di Padova, Vicolo dell'Osservatorio 5, I - 35122 Padova, Italy.), AG(European Southern Observatory, Casilla 19001, Santiago 19, Chile), AH(Dipartimento di Astronomia, Universitàdi Padova, vicolo dell'Osservatorio 2, I-35122 Padova, Italy)
Publication:
Memorie della Societa Astronomica Italiana, v.79, p.427 (2008)
Publication Date:
00/2008
Origin:
MmSAI
Bibliographic Code:
2008MmSAI..79..427G

Abstract

We present JHK observations of Leo I and Leo II dwarf spheroidal galaxies obtained with the WFCAM@UKIRT. The wide field of view and the good photometric quality of the camera led to the first high-precision NIR photometric catalogue obtained so far for these two galaxies. With high-precision photometry we could isolate the foreground Galactic population and disentangle oxygen- and carbon-rich AGB stars. Our data are compared with predictions of the most recent theoretical AGB models.

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