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相关论文: A new analytic ram pressure profile for satellite …

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Using a hybrid method which combines non-radiative hydrodynamical simulations with a semi-analytic model of galaxy formation, we determine the ram pressure as a function of halocentric distance experienced by galaxies in haloes with virial…

宇宙学与河外天体物理 · 物理学 2015-05-28 Tomás E. Tecce , Sofía A. Cora , Patricia B. Tissera

Ram pressure stripping of satellite galaxies is thought to be a ubiquitous process in galaxy clusters, and a growing number of observations reveal satellites at different stages of stripping. However, in order to determine the fate of any…

We develop a new numerical approach to describe the action of ram pressure stripping (RPS) within a semi-analytic model of galaxy formation and evolution which works in combination with non-radiative hydrodynamical simulations of galaxy…

宇宙学与河外天体物理 · 物理学 2010-11-03 Tomás E. Tecce , Sofía A. Cora , Patricia B. Tissera , Mario G. Abadi , Claudia del P. Lagos

We study ram pressure stripping in simulated Milky Way-like halos at z>=2 from the Figuring Out Gas & Galaxies In Enzo (FOGGIE) project. These simulations reach exquisite resolution in their circumgalactic medium (CGM) gas owing to FOGGIE's…

Comprehensive observations of galaxy clusters suggest that gas deficiency in the galaxies could be due to ram pressure stripping due to the high-pressure intra-cluster medium acting on the galactic discs. The presence of gas in galaxies is…

星系天体物理 · 物理学 2024-04-10 Ankit Singh , Shreya Davessar , Mamta Gulati , Jasjeet Singh Bagla , Meenu Prajapati

We use an analytical approach to study ram pressure stripping with simple models for discs and halo gas distribution to study the phenomena in cluster, group and galaxy halos. We also study variations with galaxy properties and redshift. In…

星系天体物理 · 物理学 2019-10-02 Ankit Singh , Mamta Gulati , J. S. Bagla

We use a large suite of carefully controlled full hydrodynamic simulations to study the ram pressure stripping of the hot gaseous halos of galaxies as they fall into massive groups and clusters. The sensitivity of the results to the orbit,…

We present 3D hydrodynamic simulations of ram pressure stripping in dwarf galaxies. Analogous studies on this subject usually deal with much higher ram pressures, typical of galaxy clusters, or mild ram pressure due to the gas halo of the…

天体物理学 · 物理学 2009-11-10 A. Marcolini , F. Brighenti , A. D'Ercole

The quenching of star formation in satellite galaxies is observed over a wide range of dark matter halo masses and galaxy environments. In the recent Guo et al (2011) and Fu et al (2013) semi-analytic + N-body models, the gaseous…

星系天体物理 · 物理学 2016-02-17 Yu Luo , Xi Kang , Guinevere Kauffmann , Jian Fu

Ram pressure stripping is an important process in the evolution of both dwarf galaxies and large spirals. Large spirals are severely stripped in rich clusters and may be mildly stripped in groups. Dwarf galaxies can be severely stripped in…

天体物理学 · 物理学 2011-02-11 J. A. Hester

We present results from the semi-analytic model of galaxy formation SAG applied on the MultiDark simulation MDPL2. SAG features an updated supernova (SN) feedback scheme and a robust modelling of the environmental effects on satellite…

We investigate how a satellite's star formation rate (SFR) and surviving gas respond to ram pressure stripping in various environments. Using a suite of high-resolution "wind-tunnel" simulations with radiative cooling, star formation, and…

星系天体物理 · 物理学 2023-09-14 Jingyao Zhu , Stephanie Tonnesen , Greg L Bryan

We investigate the dependence of star formation and the distribution of the components of galaxies on the strength of ram pressure. Several mock observations in X-ray, H$\alpha$ and HI wavelength for different ram-pressure scenarios are…

宇宙学与河外天体物理 · 物理学 2015-05-13 W. Kapferer , C. Sluka , S. Schindler , C. Ferrari , B. Ziegler

Reproducing the observed quenched fraction of satellite galaxies has been a long-standing issue for galaxy formation models. We modify the treatment of environmental effects in our state-of-the-art GAlaxy Evolution and Assembly (GAEA)…

星系天体物理 · 物理学 2020-08-11 Lizhi Xie , Gabriella De Lucia , Michaela Hirschmann , Fabio Fontanot

We introduce a Local Background Environment (LBE) estimator that can be measured in and around every galaxy or its dark matter subhalo in high-resolution cosmological simulations. The LBE is designed to capture the influence of…

星系天体物理 · 物理学 2019-06-26 Mohammadreza Ayromlou , Dylan Nelson , Robert M. Yates , Guinevere Kauffmann , Simon D. M. White

Environment plays a pivotal role in shaping the evolution of satellite galaxies. Analyzing the properties related to the cold gas phase of satellites provides insights into unravelling the complexity of environmental effects. We use the…

星系天体物理 · 物理学 2024-01-17 Hongxing Chen , Lizhi Xie , Jie Wang , Wenkai Hu , Gabriella De Lucia , Fabio Fontanot , Michaela Hirschamnn

Ram pressure stripping is a well-known environmental quenching mechanism that removes gas from galaxies infalling into groups and clusters. In some extreme examples of ram pressure stripping, galaxies with extended gas tails show evidence…

Low-mass galaxies are highly susceptible to environmental effects that can efficiently quench star formation. We explore the role of ram pressure in quenching low-mass galaxies ($M_{*}\sim10^{5-9}\,\rm{M}_{\odot}$) within 2 Mpc of Milky Way…

We investigate the role of ram pressure stripping in the Virgo cluster using N-body simulations. Radial orbits within the Virgo cluster's gravitational potential are modeled and analyzed with respect to ram pressure stripping. The N-body…

天体物理学 · 物理学 2010-11-04 B. Vollmer , V. Cayatte , C. Balkowski , W. J. Duschl

We present the first 3D hydrodynamical simulations of ram pressure stripping of a disc galaxy orbiting in a galaxy cluster. Along the orbit, the ram pressure that this galaxy experiences varies with time. In this paper, we focus on the…

天体物理学 · 物理学 2009-11-13 E. Roediger , M. Brueggen
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