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MeerKAT HI commissioning observations of MHONGOOSE galaxy ESO 302-G014
W. J. G. de Blok, E. Athanassoula, A. Bosma +43
We present the results of three commissioning HI observations obtained with the MeerKAT radio telescope. These observations make up part of the preparation for the forthcoming MHON…
Kinematics of RR Lyrae stars in the Galactic bulge with OGLE-IV and Gaia DR2
Hangci Du, Shude Mao, E. Athanassoula +2
We analyze the kinematics and spatial distribution of 15,599 fundamental-mode RR Lyrae (RRL) stars in the Milky Way bulge by combining OGLE-IV photometric data and Gaia DR2 proper…
Suppressed or enhanced central star formation rates in late-type barred galaxies
Jing Wang, E. Athanassoula, Si-Yue Yu +4
Bars in disc-dominated galaxies are able to drive gas inflow inside the corotation radius, thus enhancing the central star formation rate (SFR). Previous work, however, has found t…
Tidally induced warps of spiral galaxies in IllustrisTNG
Marcin Semczuk, Ewa L. Lokas, Elena D'Onghia +3
Warps are common features in both stellar and gaseous disks of nearby spiral galaxies with the latter usually easier to detect. Several theories have been proposed in the literatur…
The orbital content of bars: The origin of 'non-x1-tree', bar-supporting orbits
P. A. Patsis, E. Athanassoula
Recently, many orbital studies in barred galaxy potentials have revealed the existence of orbits which are not trapped around x1 tree orbits, but could be potentially appropriate b…