Publikationen in Zusammenarbeit mit Forschern von Carnegie Observatories (13)

2012

  1. The double sub-giant branch of NGC 6656 (M 22): A chemical characterization

    Astronomy and Astrophysics, Vol. 541

2004

  1. The variable-star population in Phoenix: Coexistence of anomalous and short-period classical Cepheids and detection of RR Lyrae variables

    Astronomical Journal, Vol. 127, Núm. 3 1779, pp. 1486-1501

1999

  1. Hubble Space Telescope observations of the local group dwarf galaxy Leo I

    Astrophysical Journal, Vol. 514, Núm. 2 PART 1, pp. 665-674

  2. Stellar population gradients in Phoenix and Leo I

    STELLAR CONTENT OF LOCAL GROUP GALAXIES

  3. The new Local Group galaxy candidates Cas dSph, Peg dSph = And VI, and Cam A

    STELLAR CONTENT OF LOCAL GROUP GALAXIES

  4. The star formation history of the local group dwarf galaxy Leo I

    Astronomical Journal, Vol. 118, Núm. 5, pp. 2245-2261

1997

  1. The nature of the Antlia galaxy: A new dwarf irregular in the outskirts of the local group

    Astronomical Journal, Vol. 114, Núm. 4, pp. 1447-1457

  2. The star formation history of the pegasus dwarf irregular galaxy

    Astronomical Journal, Vol. 114, Núm. 2, pp. 669-679

  3. The stellar content and the star formation history of the local group dwarf galaxy LGS 3

    Astronomical Journal, Vol. 114, Núm. 2, pp. 680-693

1996

  1. Model color-magnitude diagrams for Hubble Space Telescope observations of Local Group dwarf galaxies

    Astrophysical Journal, Vol. 469, Núm. 2 PART II

  2. The Local Group Dwarf Irregular Galaxy NGC 6822. I. The stellar content

    Astronomical Journal, Vol. 112, Núm. 5, pp. 1928-1949

  3. The Local Group dwarf irregular galaxy NGC 6822. II. The old and intermediate-age star formation history

    Astronomical Journal, Vol. 112, Núm. 5, pp. 1950-1968

  4. The local group dwarf irregular galaxy NGC 6822. III. The recent star formation history

    Astronomical Journal, Vol. 112, Núm. 6, pp. 2596-2606