Variable stars as tracers of stellar populations in Local Group galaxies: Leo I and NGC 6822

2); (2) INAF- Osserv. Astron. di Bologna; (3) INAF- Osserv. Astron. di Padova; (4) Dip. di Astronomia; (5) INAF- Centro Galileo Galilei & Telescopio Nazionale Galileo; (6) European Southern Observatory; Chile); E. V. Held (3); F. Matonti (1); G. Clementini (2)

arxiv: astro-ph/0305506 · v1 · submitted 2003-05-27 · 🌌 astro-ph

Variable stars as tracers of stellar populations in Local Group galaxies: Leo I and NGC 6822

L. Baldacci (1 , 2) , F. Matonti (1) , L. Rizzi (3) , G. Clementini (2) , E. V. Held (3) , Y. Momany (4) , L. Di Fabrizio (5)

show 11 more authors

I. Saviane (6) ((1) Dip. di Astronomia Univ. di Bologna Italy (2) INAF- Osserv. Astron. di Bologna (3) INAF- Osserv. Astron. di Padova (4) Dip. di Astronomia Univ. di Padova (5) INAF- Centro Galileo Galilei & Telescopio Nazionale Galileo Spain (6) European Southern Observatory Chile)

This is my paper

classification 🌌 astro-ph

keywords starsdwarfgalaxylyraepopulationstelescopevariablevariables

0 comments

read the original abstract

Results are presented of a study of the variable star populations in the dwarf spheroidal galaxy Leo I and in the dwarf irregular galaxy NGC 6822, based on time series photometry obtained with the Wide Field Imager of the 2.2 m ESO/MPI telescope (Leo I) and the Very Large Telescope (NGC 6822). We found about 250 (lower limit) variables in Leo I most of which are RR Lyrae stars. In NGC 6822 we identified 450 candidate variables among which about 20 are RR Lyrae stars, and many are low-luminosity, small-amplitude Cepheids.

This paper has not been read by Pith yet.

Variable stars as tracers of stellar populations in Local Group galaxies: Leo I and NGC 6822

discussion (0)