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We simulated the behavior of interstellar gas clouds in a companion galaxy during a gas-dynamical interaction with the halo and disk of a spiral galaxy. By ram pressure, the gas clouds are stripped from the companion, and accreted to ward…

Astrophysics · Physics 2009-10-22 Yoshiaki SOFUE

Based on a comparison of dynamical models with observations of the interstellar gas in 6 Virgo cluster spiral galaxies a first complete ram pressure stripping time sequence has been established. The observational characteristics of the…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 B. Vollmer

Ram-pressure stripping by the gaseous intra-cluster medium has been proposed as the dominant physical mechanism driving the rapid evolution of galaxies in dense environments. Detailed studies of this process have, however, largely been…

Astrophysics of Galaxies · Physics 2014-06-19 Harald Ebeling , Lauren N. Stephenson , Alastair C. Edge

We numerically investigate evolution of gaseous halos around disk galaxies in different environments ranging from small groups to rich clusters in order to understand galaxy evolution in these environments. Our simulations self-consistently…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 Kenji Bekki

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…

The removal of the interstellar medium (ISM) of disk galaxies through ram pressure stripping (RPS) has been extensively studied in numerous simulations. Nevertheless, the role of magnetic fields (MF) on the gas dynamics in this process has…

Astrophysics of Galaxies · Physics 2018-03-14 Mariana Ramos-Martínez , Gilberto C. Gómez , Angeles Pérez-Villegas

We study the case of a bright (L>L*) barred spiral galaxy from the rich cluster A3558 in the Shapley supercluster core (z=0.05) undergoing ram-pressure stripping. Integral-field spectroscopy, complemented by multi-band imaging, allows us to…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-12 P. Merluzzi , G. Busarello , M. A. Dopita , C. P. Haines , D. Steinhauser , A. Mercurio , A. Rifatto , R. J. Smith , S. Schindler

We present the first study of the effect of ram-pressure "unwinding" the spiral arms of cluster galaxies. We study 11 ram-pressure stripped galaxies from GASP (GAs Stripping Phenomena in galaxies) in which, in addition to more commonly…

We investigate the efficiency of galactic mass loss, triggered by ram-pressure stripping and galactic winds of cluster galaxies, on the chemical enrichment of the intra-cluster medium (ICM). We combine N-body and hydrodynamic simulations…

We present results from a series of hydrodynamic simulations investigating ram pressure stripping of galactic haloes as the host galaxy falls radially into a cluster. We perform a parameter study comprising of variations in initial gas…

Astrophysics · Physics 2009-11-07 David M. Acreman , Ian R. Stevens , Trevor J. Ponman , Irini Sakelliou

(abridged) Ram pressure can remove significant amounts of gas from galaxies in clusters, and thus has a large impact on the evolution of cluster galaxies. Recent observations have shown that key properties of ram pressure stripped tails of…

Cosmology and Nongalactic Astrophysics · Physics 2018-01-17 M. Ruszkowski , M. Bruggen , D. Lee , M. -S. Shin

The removal of gas by ram pressure stripping of galaxies is treated by a purely kinematic description. The solution has two asymptotic limits: if the duration of the ram pressure pulse exceeds the period of vertical oscillations…

Astrophysics of Galaxies · Physics 2018-07-04 J. Koppen , P. Jachym , R. Taylor , J. Palous

Ram-pressure stripping (RPS) is a well observed phenomenon of massive spiral galaxies passing through the hot intra-cluster medium (ICM) of galaxy clusters. For dwarf galaxies (DGs) within a cluster, the transformation from gaseous to…

Astrophysics of Galaxies · Physics 2020-04-08 Patrick Steyrleithner , Gerhard Hensler , Alessandro Boselli

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…

Astrophysics of Galaxies · Physics 2019-10-02 Ankit Singh , Mamta Gulati , J. S. Bagla

Ram pressure stripping (RPS) has a non-negligible impact on the gas content of cluster galaxies. We use the semi-analytic model GAEA and the hydro-simulation TNG to investigate whether cluster galaxies suffer a strong RPS that is sufficient…

Astrophysics of Galaxies · Physics 2025-06-02 Lizhi Xie , Gabriella De Lucia , Matteo Fossati , Fabio Fontanot , Michaela Hirschmann

Cluster spiral galaxies suffer catastrophic losses of the cool, neutral gas component of their interstellar medium due to ram pressure stripping, contributing to the observed quenching of star formation in the disk compared to galaxies in…

Astrophysics of Galaxies · Physics 2022-03-30 Ryan Jeffrey Farber , Mateusz Ruszkowski , Stephanie Tonnesen , Paco Holguin

We compare the stellar structure of the isolated, Local Group dwarf galaxy Pegasus (DDO216) with low resolution HI maps from Young et al. (2003). Our comparison reveals that Pegasus displays the characteristic morphology of ram pressure…

The circumgalactic medium (CGM) of star-forming dwarf galaxies plays a key role in regulating the galactic baryonic cycle. We investigate how susceptible the CGM of dwarf satellite galaxies is to ram pressure stripping (RPS) in Milky…

Astrophysics of Galaxies · Physics 2024-10-10 Jingyao Zhu , Stephanie Tonnesen , Greg L. Bryan , Mary E. Putman

Ram pressure stripping, i.e. the removal of a galaxy's gas disk due to its motion through the intracluster medium of a galaxy cluster, appears to be a common phenomenon. Not every galaxy, however, is completely stripped of its gas disk. If…

Astrophysics · Physics 2009-11-13 E. Roediger , G. Hensler

We discuss the effect of ram pressure on the cold clouds in the centers of cool-core galaxy clusters, and in particular, how it reduces cloud velocity and sometimes causes an offset between the cold gas and young stars. The velocities of…

Astrophysics of Galaxies · Physics 2018-02-28 Yuan Li , Mateusz Ruszkowski , Grant Tremblay