Astrophysical: Galaxies

  • Publication
    The link between the star formation history and [α/Fe ]
    The abundance ratios between key elements such as iron and α-process elements carry a wealth of information on the star formation history (SFH) of galaxies. So...
  • Publication
    The Local Group Census: Planetary nebulae in IC 10, Leo A and Sextans A
    In the framework of our narrow-band survey of the Local Group galaxies, we present the results of the search for planetary nebulae (PNe) in the dwarf irregular...
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    The Local Group Census: Planetary nebulae in Sextans B
    Five planetary nebulae (PNe) have been discovered in the nearby dwarf irregular galaxy. Emission line images were obtained using the Wide Field Camera of the 2...
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    The Local Group Census: planetary nebulae in the spheroidal galaxies NGC 147, NGC 185 and NGC 205
    In the framework of our narrow-band survey of Local Group galaxies, we present the results of the search for planetary nebulae (PNe) in three spheroidal...
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    The Local Group Census: searching for planetary nebulae in IC 1613, WLM and GR8
    In the framework of the Local Group Census (LGC), a survey of the Local Group (LG) galaxies above Dec =-30° aimed at surveying the populations that have strong...
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    The Local Group Dwarf Irregular Galaxy NGC 6822.I.The Stellar Content
    We present deep UBVRI CCD photometry of the resolved stellar content of the Local Group Dwarf Irregular Galaxy NGC 6822. The main advantage of this new data is...
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    The Local Group Dwarf Irregular Galaxy NGC 6822.II.The Old and Intermediate -Age Star Formation History
    We present a study of the old and intermediate-age star formation history (SFH) of the Local Group dwarf irregular galaxy (DIG) NGC 6822. It has been...
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    The Local Group Dwarf Irregular Galaxy NGC 6822.III. The Recent Star Formation History
    We present a quantitative derivation of the recent star formation history (SFH) in different regions in the main body of NGC 6822. It has been performed using a...
  • Publication
    The Local Group Dwarf Irregular Galaxy NGC 6822: new insight on its star formation history .
    We present a new photometric analysis of the Local Group Dwarf Irregular Galaxy NGC 6822 based on archival Hubble Space Telescope Advanced Camera for Surveys...