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Validity of abundances derived from spaxel spectra of the MaNGA survey
L. S. Pilyugin, E. K. Grebel, I. A. Zinchenko +4
We measured the emission lines in the spaxel spectra of MaNGA galaxies in order to determine the abundance distributions therein. It has been suggested that the strength of the low…
Spiral arms in CALIFA galaxies traced by non-circular velocities, abundances, and extinctions
F. Sakhibov, I. A. Zinchenko, L. S. Pilyugin +3
We derive maps of the observed velocity of ionized gas, the oxygen abundance, and the extinction (Balmer decrement) across the area of the four spiral galaxies NGC36, NGC180, NGC60…
Is the Milky Way still breathing? RAVE-Gaia streaming motions
I. Carrillo, I. Minchev, G. Kordopatis +26
We use data from the Radial Velocity Experiment (RAVE) and the Tycho-Gaia astrometric solution catalogue (TGAS) to compute the velocity fields yielded by the radial (VR), azimuthal…
The Young Star Cluster population of M51 with LEGUS: I. A comprehensive study of cluster formation and evolution
M. Messa, A. Adamo, G. Östlin +34
Recently acquired WFC3 UV (F275W and F336W) imaging mosaics under the Legacy Extragalactic UV Survey (LEGUS) combined with archival ACS data of M51 are used to study the young star…
Detailed chemical composition of classical Cepheids in the LMC cluster NGC 1866 and in the field of the SMC
B. Lemasle, M. A. T. Groenewegen, E. K. Grebel +11
Context: Cepheids are excellent tracers of young stellar populations. They play a crucial role in astrophysics as standard candles. The chemistry of classical Cepheids in the Milky…
Breaks in surface brightness profiles and radial abundance gradients in the discs of spiral galaxies
L. S. Pilyugin, E. K Grebel, I. A. Zinchenko +2
We examine the relation between breaks in the surface brightness profiles and radial abundance gradients within the optical radius in the discs of 134 spiral galaxies from the CALI…