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相关论文: The Structural Evolution of Isolated Galaxies at L…

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The galaxy evolution is believed to be conditioned by the environment. Isolated galaxies or galaxies in poor groups are an excellent laboratory to study evolutionary mechanisms where effects of the environment are minimal. We present new…

星系天体物理 · 物理学 2022-03-14 Paola Mazzei , Roberto Rampazzo , Antonietta Marino , Ginevra Trinchieri , Michela Uslenghi , Anna Wolter

Galaxies grow primarily via accretion-driven star formation in discs and merger-driven growth of bulges. These processes are implicit in semi-analytical models of galaxy formation, with bulge growth in particular relating directly to the…

宇宙学与河外天体物理 · 物理学 2015-06-16 David J. Wilman , Fabio Fontanot , Gabriella De Lucia , Peter Erwin , Pierluigi Monaco

We investigate the evolution of nuclear gas-phase oxygen abundance and star formation rate (SFR) of local far-infrared selected star-forming galaxies along the merger sequence, as traced by their optical morphologies. The sample was drawn…

星系天体物理 · 物理学 2016-06-21 Rui Guo , Cai-Na Hao , Xiao-Yang Xia , Peng Wei , Xin Guo

Explaining the formation and evolution of galaxies is one of the most challenging problems in observational cosmology. Many observations suggest that galaxies we see today could have evolved from the merging of smaller subsystems. Evolution…

天体物理学 · 物理学 2009-10-31 Deepak Jain , N. Panchapakesan , S. Mahajan , V. B. Bhatia

We investigate the internal and external mechanisms that regulate and quench star formation (SF) in galaxies at $z \sim 0.3$ using MAGPI observations and the EAGLE, Magneticum, and IllustrisTNG cosmological simulations. Using SimSpin to…

We propose a general framework leveraging the halo-galaxy connection to link galaxies observed at different redshift in a statistical way, and use the link to infer the redshift evolution of the galaxy population. Our tests based on…

星系天体物理 · 物理学 2023-02-09 Kai Wang , Houjun Mo , Cheng Li , Yangyao Chen

Using the CIGALE software, we present the preliminary results of a multiwavelength analysis of eighteen low-redshift isolated galaxies with active nuclei (isolated AGNs). This sample was formed by cross-matching the 2MIG isolated AGNs…

星系天体物理 · 物理学 2025-11-26 O. Kompaniiets

We have considered the star formation properties of 1616 isolated galaxies from the 2MASS XSC selected sample (2MIG) with the FUV GALEX magnitudes. This sample was then compared with corresponding properties of isolated galaxies from the…

星系天体物理 · 物理学 2015-05-01 O. Melnyk , V. Karachentseva , I. Karachentsev

Recent studies have shown that massive quiescent galaxies at high redshift are much more compact than present-day galaxies of the same mass. Here we compare the radial stellar density profiles and the number density of a sample of massive…

宇宙学与河外天体物理 · 物理学 2010-01-15 Rachel Bezanson , Pieter G. van Dokkum , Tomer Tal , Danilo Marchesini , Mariska Kriek , Marijn Franx , Paolo Coppi

Active galactic nuclei (AGN) feedback plays a significant role in many aspects of galaxy formation and evolution and has become a key ingredient in cosmological simulations. However, the subgrid models of AGN feedback in cosmological…

星系天体物理 · 物理学 2026-04-29 Bocheng Zhu , Volker Springel , Feng Yuan

We study stellar core growth in simulations of merging massive ($M_\star>10^{11}\,\mathrm{M}_\odot$) elliptical galaxies by a supermassive black hole (SMBH) displaced by gravitational wave induced recoil velocity. With controlled, dense…

Galaxy clusters provide powerful laboratories for the study of galaxy evolution, particularly the origin of correlations of morphology and star formation rate (SFR) with density. We construct visible to MIR spectral energy distributions…

宇宙学与河外天体物理 · 物理学 2015-06-03 David W. Atlee , Paul Martini

Recent studies have found a dramatic difference between the observed number density evolution of low mass galaxies and that predicted by semi-analytic models. While models accurately reproduce the z=0 number density, they require that the…

Galaxy formation theories predict that galaxy shapes and angular momenta have non-random alignments with the cosmic web. This leads to so-called intrinsic alignment between pairs of galaxies, which is important to quantify as a nuisance…

宇宙学与河外天体物理 · 物理学 2023-07-13 Benjamin Zhang , Khee-Gan Lee , Alex Krolewski , Jingjing Shi , Benjamin Horowitz , Robin Kooistra

We compare the star forming main sequence (SFMS) -- both integrated and resolved on 1kpc scales -- between the high-resolution TNG50 simulation of IllustrisTNG and observations from the 3D-HST slitless spectroscopic survey at z~1.…

We study the co-evolution of black holes (BHs) and their host galaxies in the ASTRID and Illustris-TNG300 cosmological simulations and the Dark Sage Semi-Analytic Model (SAM), focusing on the evolution of the BH mass - stellar mass ($M_{\rm…

We determine the evolution of the co-moving density of the most massive ($M_* \geq 10^{12} M_\odot$) early-type galaxy population in the redshift range of $z = 0.15$ - 0.45 in different stellar mass ranges using data from the Sloan Digital…

宇宙学与河外天体物理 · 物理学 2011-01-04 Laszlo Dobos , Istvan Csabai

Shells are low surface brightness tidal debris that appear as interleaved caustics with large opening angles, often situated on both sides of the galaxy center. In this paper, we study the incidence and formation processes of shell galaxies…

星系天体物理 · 物理学 2018-08-23 Ana-Roxana Pop , Annalisa Pillepich , Nicola C. Amorisco , Lars Hernquist

Intergalactic filaments form the foundation of the cosmic web that connect galaxies together, and provide an important reservoir of gas for galaxy growth and accretion. Here we present very high resolution two-dimensional simulations of the…

宇宙学与河外天体物理 · 物理学 2015-06-15 William J Gray , Evan Scannapieco

We use the magnetic-hydrodynamical simulation TNG50 to study the evolution of barred massive disc galaxies. Massive spiral galaxies are already present as early as $z=4$, and bar formation takes place already at those early times. The bars…

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