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X-Shooting ULLYSES: Massive Stars at Low Metallicity X. Physical Parameters and Feedback of Massive Stars in the LMC N11 B Star-Forming Region
V. M. A. Gómez-González, L. M. Oskinova, W. -R. Hamann +23
Massive stars lead the ionization and mechanical feedback within young star-forming regions. The Large Magellanic Cloud (LMC) is an ideal galaxy for studying individual massive sta…
Characterizing chemical abundance ratios in extremely metal-poor star-forming galaxies in DESI EDR
I. A. Zinchenko, M. Sobolenko, J. M. Vilchez +1
We present a search for galaxies in the local Universe with extremely low oxygen abundance, that is, more than 25 times lower than solar, which corresponds to 12 + log(O/H) < 7.3.…
Unraveling the Kinematics of IZw18: A Detailed Study of Ionized Gas with MEGARA/GTC
Antonio Arroyo-Polonio, Carolina Kehrig, Jorge Iglesias Paramo +6
This study delves into the intricate kinematic behavior of ionized gas within IZw18, a galaxy known for its remarkably low metallicity and proximity. Leveraging data from MEGARA/GT…
X-Shooting ULLYSES: Massive Stars at low metallicity II. DR1: Advanced optical data products for the Magellanic Clouds
H. Sana, F. Tramper, M. Abdul-Masih +34
Using the medium resolution spectrograph X-shooter, spectra of 235 OB and Wolf-Rayet (WR) stars in sub-solar metallicity environments have been secured. [...]This second paper focu…
Multiwavelength exploration of Extreme Emission Line Galaxies detected in miniJPAS survey
Iris Breda, Stergios Amarantidis, José M. Vilchez +24
Extreme Emission Line Galaxies (EELGs) stand as remarkable objects due to their extremely metal poor environment and intense star formation. Considered as local analogues of high-r…