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Near-infrared spectroscopy of candidate red supergiant stars in clusters
Maria Messineo, Zhu Qingfeng, Valentin D. Ivanov +5
Clear identifications of Galactic young stellar clusters farther than a few kpc from the Sun are rare, despite the large number of candidate clusters. We aim to improve the selecti…
Massive stars in the giant molecular cloud G23.3-0.3 and W41
Maria Messineo, Karl M. Menten, Donald F. Figer +7
Young massive stars and stellar clusters continuously form in the Galactic disk, generating new HII regions within their natal giant molecular clouds and subsequently enriching the…
The VMC Survey - XII. Star cluster candidates in the Large Magellanic Cloud
André E. Piatti, Roald Guandalini, Valentin D. Ivanov +8
In this work we analyse Colour-Magnitude Diagrams (CMDs) of catalogued star clusters located in the Large Magellanic Cloud (LMC), from a YJKs photometric data set obtained by the V…
Confirmation of a cluster of galaxies hidden behind the Galactic bulge using the VVV Survey
Georgina Coldwell, Sol Alonso, Fernanda Duplancic +3
Suzaku and Chandra X-ray observations detected a new cluster of galaxies, Suzaku J1759-3450, at a redshift z=0.13. It is located behind the Milky Way, and the high Galactic dust ex…
The mass-metallicity relation of galaxies up to redshift 0.35
Ivo Saviane, Irina Yegorova, Dominique Proust +5
Our research on the age-metallicity and mass-metallicity relations of galaxies is presented and compared to the most recent investigations in the field. We have been able to measur…