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pro vyhledávání: '"Heesters, Nick"'
The properties of satellite dwarf galaxies pose important empirical constraints to verify cosmological models on galaxy scales. Their phase-space correlations, in particular, offer interesting insights into various models. Next to the planes-of-satel
Externí odkaz:
http://arxiv.org/abs/2406.11684
Autor:
Pawlowski, Marcel S., Müller, Oliver, Taibi, Salvatore, Júlio, Mariana P., Kanehisa, Kosuke Jamie, Heesters, Nick
Publikováno v:
A&A 688, A153 (2024)
The galaxy system around NGC4490 was recently highlighted to display a flattened, kinematically correlated structure reminiscent of satellite galaxy planes around other hosts. Since known satellite planes are in tension with $\Lambda$CDM expectations
Externí odkaz:
http://arxiv.org/abs/2405.06016
Dwarf galaxy abundances can serve as discernment tests for models of structure formation. Previous small-scale tensions between observations and dark matter-only cosmological simulations may have been resolved with the inclusion of baryonic processes
Externí odkaz:
http://arxiv.org/abs/2405.05303
Autor:
Müller, Oliver, Heesters, Nick, Pawlowski, Marcel S., Kanehisa, Kosuke Jamie, Lelli, Federico, Libeskind, Noam I.
The spatial distribution of dwarf galaxies around their host galaxies is a critical test for the standard model of cosmology because it probes the dynamics of dark matter halos and is independent of the internal baryonic processes of galaxies. Co-mov
Externí odkaz:
http://arxiv.org/abs/2401.16002
Autor:
Paudel, Sanjaya, Duc, Pierre-Alain, Lim, Sungsoon, Poulain, Mélina, Marleau, Francine R., Müller, Oliver, Sánchez-Janssen, Rubén, Habas, Rebecca, Durrell, Patrick R., Heesters, Nick, Chhatkuli, Daya Nidhi, Yoon, Suk-Jin
We study a compact nucleus embedded in an early-type dwarf galaxy, MATLAS-167, which is in the process of disruption by the tidal force of the neighboring giant S0 galaxy, NGC 936, in a group environment. Using the imaging data of the MATLAS survey,
Externí odkaz:
http://arxiv.org/abs/2309.08098
Autor:
Heesters, Nick, Müller, Oliver, Marleau, Francine R., Duc, Pierre-Alain, Sánchez-Janssen, Rubén, Poulain, Mélina, Habas, Rebecca, Lim, Sungsoon, Durrell, Patrick R.
Publikováno v:
A&A 676, A33 (2023)
Dwarf galaxies have been extensively studied in the Local Group, in nearby groups, and selected clusters, giving us a robust picture of their global stellar and dynamical properties in particular locations in the Universe. Intense study of these prop
Externí odkaz:
http://arxiv.org/abs/2305.04593
Publikováno v:
A&A 673, A160 (2023)
Dark matter clusters on all scales, therefore it is expected that even substructure should host its own substructure. Using the Extragalactic Distance Database, we searched for dwarf galaxy satellites of dwarf galaxies, i.e. satellite-of-satellite ga
Externí odkaz:
http://arxiv.org/abs/2303.03025
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