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Young stars and ionized nebulae in M83: comparing chemical abundances at high metallicity
Fabio Bresolin, Rolf-Peter Kudritzki, Miguel A. Urbaneja +3
We present spectra of 14 A-type supergiants in the metal-rich spiral galaxy M83. We derive stellar parameters and metallicities, and measure a spectroscopic distance modulus m-M =…
The Araucaria Project. On the Tip of the Red Giant Branch distance determination to the Magellanic Clouds
Marek Gorski, Grzegorz Pietrzynski, Wolfgang Gieren +8
We present a precise optical and near-infrared determination of the Tip of the Red Giant Branch (TRGB) brightness in the Large and Small Magellanic Clouds (respectively LMC and SMC…
Galactoseismology: Discovery of a cluster of receding, variable halo stars
Sukanya Chakrabarti, Rodolfo Angeloni, Kenneth Freeman +13
A dynamical characterization of dark matter dominated dwarf galaxies from their observed effects on galactic disks (i.e. Galactoseismology) has remained an elusive goal. Here, we p…