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相关论文: On stellar mass loss from galaxies in groups and c…

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Central galaxies (CGs) in galaxy groups and clusters are believed to form and assemble a good portion of their stellar mass at early times, but they also accrete significant mass at late times via galactic cannibalism, that is merging with…

星系天体物理 · 物理学 2017-01-25 Carlo Nipoti

The stellar stripping of satellites in cluster haloes is understood to play an important role in the production of intracluster light. Increasingly, cosmological simulations have been utilised to investigate its origin and assembly.…

星系天体物理 · 物理学 2024-11-04 G. Martin , F. R. Pearce , N. A. Hatch , A. Contreras-Santos , A. Knebe , W. Cui

Most stars form in highly clustered environments within molecular clouds, but eventually disperse into the distributed stellar field population. Exactly how the stellar distribution evolves from the embedded stage into gas-free associations…

星系天体物理 · 物理学 2023-09-21 Juan P. Farias , Stella S. R. Offner , Michael Y. Grudić , Dávid Guszejnov , Anna L. Rosen

We predict the mass fraction of oxygen lost from galaxies in a cosmological simulation as a function of stellar mass and environment at the present day. The distribution with stellar mass is bimodal, separating star-forming and quenched…

星系天体物理 · 物理学 2020-07-15 Philip Taylor , Chiaki Kobayashi , Lisa J. Kewley

Using a set of clusters in dark matter only cosmological simulations, we study the consequences of merging of clusters and groups of galaxies (with mass ratio larger than 5:1) to investigate the tidal impact of mergers on the satellite…

星系天体物理 · 物理学 2023-12-11 Kyung Lin Dong , Rory Smith , Jihye Shin , Reynier Peletier

We employ the EAGLE hydrodynamical simulation to uncover the relationship between cluster environment and $\rm H_2$ content of star-forming galaxies at redshifts spanning $0\leq z\leq 1$. To do so, we divide the star-forming sample into…

星系天体物理 · 物理学 2023-05-31 Aditya Manuwal , Adam R. H. Stevens

We have determined the amount of stellar mass segregation in over 50 globular clusters and ultra-faint dwarf galaxy candidates based on deep HST and ground-based photometry. We find that the amount of mass segregation in globular clusters…

星系天体物理 · 物理学 2021-12-22 Holger Baumgardt , Johannes Faller , Nicholas Meinhold , Chandler McGovern-Greco , Michael Hilker

Using photometric galaxies from the HSC survey, we measure the stellar mass density profiles for satellite galaxies as a function of the projected distance, $r_p$, to isolated central galaxies (ICGs) selected from SDSS/DR7 spectroscopic…

The expulsion of the unconverted gas at the end of the star formation process potentially leads to the expansion of the just formed stellar cluster and membership loss. The degree of expansion and mass loss depends largely on the star…

星系天体物理 · 物理学 2015-06-16 Susanne Pfalzner , Thomas Kaczmarek

[abridged] We present a unified picture for the evolution of star clusters on the two-body relaxation timescale. We use direct N-body simulations of star clusters in a galactic tidal field starting from different multi-mass King models, up…

星系天体物理 · 物理学 2014-11-20 Michele Trenti , Enrico Vesperini , Mario Pasquato

In this work, we use measurements of galaxy stellar mass and two-point angular correlation functions to constrain the stellar-to-halo mass ratios (SHMRs) of passive and \np\ galaxies at $z\sim2-3$, as identified in the \emph{Spitzer}…

We use direct $N$-body calculations to investigate the impact of primordial mass segregation on the size scale and mass-loss rate of star clusters in a galactic tidal field. We run a set of simulations of clusters with varying degrees of…

星系天体物理 · 物理学 2015-06-22 Hosein Haghi , Seyed Mohammad Hoseini-Rad , Akram Hasani Zonoozi , Andreas H. W. Kuepper

We describe the interplay between stellar evolution and dynamical mass loss of evolving star clusters, based on the principles of stellar evolution and cluster dynamics and on a grid of N-body simulations of cluster models. The cluster…

星系天体物理 · 物理学 2015-05-19 Henny J. G. L. M. Lamers , Holger Baumgardt , Mark Gieles

We study the evolution of star clusters in the Galactic tidal field starting from their birth in molecular clumps. Our model clusters form according to the local-density-driven cluster formation model in which the stellar density profile is…

星系天体物理 · 物理学 2020-03-18 Bekdaulet Shukirgaliyev , Genevieve Parmentier , Peter Berczik , Andreas Just

A review of gravitational and hydrodynamical processes during formation of clusters and evolution of galaxies is given. Early, at the advent of N-body computer simulations, the importance of tidal fields in galaxy encounters has been…

天体物理学 · 物理学 2015-06-24 Jan Palous

We use publicly available galaxy merger trees, obtained applying semi-analytic techniques to a large high resolution cosmological simulation, to study the environmental history of group and cluster galaxies. Our results highlight the…

宇宙学与河外天体物理 · 物理学 2015-06-03 Gabriella De Lucia , Simone Weinmann , Bianca Poggianti , Alfonso Aragon-Salamanca , Dennis Zaritsky

We study the quenching of satellite galaxies by gradual depletion of gas due to star formation, by ram-pressure striping and by tidally triggered starburst. Using progenitors constrained by the empirical model of Lu et al., in which outflow…

星系天体物理 · 物理学 2015-06-16 Zhankui Lu , H. J. Mo

We study the tidal evolution of galaxies in the most massive cluster of the IllustrisTNG-100 simulation. For the purpose of this work we select 112 galaxies with the largest stellar masses at present and follow their properties in time.…

星系天体物理 · 物理学 2020-07-01 Ewa L. Lokas

We present an analysis of galaxies in groups and clusters at $0.8<z<1.2$, from the GCLASS and GEEC2 spectroscopic surveys. We compute a "conversion fraction" $f_{\rm convert}$ that represents the fraction of galaxies that were prematurely…

The definition of the galactic stellar mass estimated from the spectral energy distribution is ambiguous in the literature; whether the stellar mass includes the mass of the stellar remnants, i.e. white dwarfs, neutron stars, and black…

宇宙学与河外天体物理 · 物理学 2015-06-17 Ikkoh Shimizu , Akio K. Inoue