490 citations · 2.6k across the 52 of their papers we have counts for
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Disentangling the formation mechanisms of nuclear star clusters
Katja Fahrion, Ryan Leaman, Mariya Lyubenova +1
Nuclear star clusters (NSCs) are massive star clusters found ubiquitously in the centres of galaxies, from the dwarf regime to massive ellipticals and spirals. The fraction of nucl…
On the link between nuclear star cluster and globular cluster system mass, nucleation fraction and environment
Ryan Leaman, Glenn van de Ven
We present a simple model for the host mass dependence of the galaxy nucleation fraction (), the galaxy's nuclear star cluster (NSC) mass and the mass in its surviving glo…
Once in a blue stream: Detection of recent star formation in the NGC 7241 stellar stream with MEGARA
David Martinez-Delgado, Santi Roca-Fabrega, Armando Gil de Paz +23
In this work we study the striking case of a narrow blue stream around the NGC 7241 galaxy and its foreground dwarf companion. We want to figure out if the stream was generated by…
Mass of the dynamically hot inner stellar halo predicts the ancient accreted stellar mass
Ling Zhu, Annalisa Pillepich, Glenn van de Ven +6
Galactic dynamical structures are fossil records of the assembly histories of galaxies. By analyzing the cosmological hydrodynamical simulation TNG50, we find that a dynamical stru…
Mapping Accreted Stars in Early-Type Galaxies Across the Mass-Size Plane
Thomas A. Davison, Mark A. Norris, Ryan Leaman +3
Galaxy mergers are instrumental in dictating the final mass, structure, stellar populations, and kinematics of galaxies. Cosmological galaxy simulations indicate that the most mass…
Joint Gas and Stellar Dynamical Models of WLM: An isolated dwarf galaxy within a cored, prolate DM halo
Gigi Y. C. Leung, Ryan Leaman, Giuseppina Battaglia +4
We present multi-tracer dynamical models of the low mass (), isolated dwarf irregular galaxy WLM in order to simultaneously constrain the inner slope of the dark…