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Related papers: The e-TidalGCs Project: Modeling the extra-tidal f…

200 papers

To enhance our understanding of the impact of galaxy mergers on the kinematics of early-type galaxies (ETGs), we examine differences in specific stellar angular momentum within the half-light radius ($\lambda_{R_e}$) among ETGs with…

Astrophysics of Galaxies · Physics 2024-04-05 Yongmin Yoon , Jongwan Ko , Haeun Chung , Woowon Byun , Kyungwon Chun

The Milky Way halo was predominantly formed by the merging of numerous progenitor galaxies. However, our knowledge of this process is still incomplete, especially in regard to the total number of mergers, their global dynamical properties…

We study the origins of 122 ultra-diffuse galaxies (UDGs) in the {\sc RomulusC} zoom-in cosmological simulation of a galaxy cluster (M$_{200} = 1.15\times10^{14}$ M$_{\odot}$), one of the only such simulations capable of resolving the…

Astrophysics of Galaxies · Physics 2020-07-22 Michael Tremmel , Anna C. Wright , Alyson M. Brooks , Ferah Munshi , Daisuke Nagai , Thomas R. Quinn

Using photometry and proper motions from Gaia Data Release 2, we detect a 50 degree-long stream of about 70 stars extending westward from the halo globular cluster M5. Based on the similarities in distance, proper motions, inferred…

Astrophysics of Galaxies · Physics 2019-11-06 Carl J. Grillmair

Open clusters offer unique opportunities to study stellar dynamics and evolution under the influence of their internal gravity, the Milky Way's gravitational field, and the interactions with encounters. Using the Gaia DR3 data for a catalog…

Astrophysics of Galaxies · Physics 2025-06-18 Ming Xu , Xiaoting Fu , Yang Chen , Lu Li , Min Fang , He Zhao , Penghui Liu , Yichang Zuo

Slow rotator galaxies are distinct amongst galaxy populations, with simulations suggesting that a mix of minor and major mergers are responsible for their formation. A promising path to resolve outstanding questions on the type of merger…

Globular clusters (GCs) are powerful tracers of the galaxy assembly process, and have already been used to obtain a detailed picture of the progenitors of the Milky Way. Using the E-MOSAICS cosmological simulation of a (34.4 Mpc)$^3$ volume…

The location of a galaxy cluster's centroid is typically derived from observations of the galactic and/or gas component of the cluster, but these typically deviate from the true centre. This can produce bias when observations are combined…

Cosmology and Nongalactic Astrophysics · Physics 2020-02-05 Z. Yan , N. Raza , L. Van Waerbeke , A. J. Mead , I. G. McCarthy , T. Troester , G. Hinshaw

A method to search for tidal streams and to fit their orbits based on maximum likelihood is presented and applied to the Gaia data. Tests of the method are performed showing how a simulated stream produced by tidal stripping of a star…

Astrophysics of Galaxies · Physics 2020-10-28 C. G. Palau , J. Miralda-Escudé

We found 50 new globular cluster (GC) candidates around M\,31 with Gaia Early Data Release 3 (EDR3), with the help from Pan-STARRS1 DR1 magnitudes and Pan-Andromeda Archaeological Survey (PAndAS) images. Based on the latest Revised Bologna…

Astrophysics of Galaxies · Physics 2023-07-21 Yilun Wang , Haibo Yuan , Bingqiu Chen , Xinlei Chen , Hao Wu , Zexi Niu , Jifeng Liu

We investigate the spatial, kinematic and chemical properties of globular cluster systems formed in merging and interacting galaxies using N-body/SPH simulations. Although we can not resolve individual clusters in our simulation, we assume…

Astrophysics · Physics 2009-11-07 K. Bekki , Duncan A. Forbes , M. A. Beasley , W. J. Couch

Satellite galaxies endure powerful environmental tidal forces that drive mass stripping of their outer regions. Consequently, satellites located in central regions of galaxy clusters or groups, where the tidal field is strongest, are…

The formation history of globular clusters (GCs) at redshift $z > 4$ remains an unsolved problem. In this work, we use the cosmological, $N$-body hydrodynamical ``zoom-in'' simulation GigaEris to study the properties and formation of…

Astrophysics of Galaxies · Physics 2023-04-05 Floor van Donkelaar , Lucio Mayer , Pedro R. Capelo , Tomas Tamfal , Thomas R. Quinn , Piero Madau

Context: Tidal tails of open clusters are the result of stellar evaporation from the cluster through the Galactic potential and internal dynamics. With the recent availability of high-precision data, tidal tails are being detected for most…

Astrophysics of Galaxies · Physics 2025-01-30 Dhanraj Risbud , Vikrant V. Jadhav , Pavel Kroupa

A sufficiently extended satellite in the tidal field of a host galaxy loses mass to create nearly symmetric leading and trailing tidal streams. We study the case in which tidal heating drives mass loss from a low mass satellite. The stream…

Astrophysics of Galaxies · Physics 2015-06-23 Raymond G. Carlberg

Next-generation surveys are expected to uncover thousands of globular cluster (GC) stellar streams, motivating the need for a theoretical framework that produces realistic GC streams in a fully cosmological, Milky Way-like environment. We…

In previous papers of this series, we developed a new algorithm for modeling the formation of star clusters in galaxy formation simulations. Here we investigate how dissolution of bound star clusters affects the shape of the cluster mass…

Astrophysics of Galaxies · Physics 2019-05-21 Hui Li , Oleg Y. Gnedin

Dynamical friction and tidal disruption are effective mechanisms of evolution of globular cluster systems, especially in non-axysimmetric galaxies with a central compact nucleus. With a semi-analytical approach based on the knowledge of the…

Astrophysics · Physics 2016-08-30 R. Capuzzo-Dolcetta , A. Tesseri

The main goal of our project is to investigate the spatial distribution of different stellar populations in the Magellanic Clouds. The results from modelling the Magellanic Clouds can be useful, among others, for simulations during the Gaia…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 M. K. Belcheva , E. Livanou , M. Kontizas , G. B. Nikolov , E. Kontizas

We present a catalog of 422 galaxies with published measurements of their globular cluster (GC) populations. Of these, 248 are E galaxies, 93 are S0 galaxies, and 81 are spirals or irregulars. Among various correlations of the total number…

Astrophysics of Galaxies · Physics 2015-06-16 William E. Harris , Gretchen L. H. Harris , Matthew Alessi
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