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We study the radio continuum emission of four galaxies experiencing ram-pressure stripping in four clusters of the Shapley supercluster at redshift z~0.05. Multi-band (235-1367 MHz) radio data, complemented by integral-field spectroscopy,…

Ram pressure stripping of the multiphase ISM is studied in the perturbed Virgo cluster spiral galaxy NGC 4438. This galaxy underwent a tidal interaction ~100 Myr ago and is now strongly affected by ram pressure stripping. Deep VLA radio…

Astrophysics of Galaxies · Physics 2009-11-13 B. Vollmer , M. Soida , A. Chung , L. Chemin , J. Braine , A. Boselli , R. Beck

We present two new examples of galaxies undergoing transformation in the Shapley supercluster core. These low-mass (stellar mass from 0.4E10 to 1E10 Msun) galaxies are members of the two clusters SC-1329-313 (z=0.045) and SC-1327-312…

Astrophysics of Galaxies · Physics 2016-07-27 P. Merluzzi , G. Busarello , M. A. Dopita , C. P. Haines , D. Steinhauser , H. Bourdin , P. Mazzotta

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

While galaxies move through the intracluster medium of their host cluster, they experience a ram pressure which removes at least a significant part of their interstellar medium. This ram pressure stripping appears to be especially important…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 E. Roediger

Ram pressure stripping has been proven to be effective in shaping galaxy properties in dense environments at low redshift. The availability of MUSE observations of a sample of distant (z$\sim 0.3-0.5$) clusters has allowed to search for…

We present an analysis of the kinematics and ionization conditions in a sample composed of seven star-forming galaxies undergoing ram-pressure stripping in the A1367 cluster, and the galaxy ESO137-001 in the Norma cluster. MUSE observations…

The pressure exerted by the ambient hot X-ray gas on cluster galaxies can lead to the presence of ram pressure stripped (RPS) galaxies, characterized by asymmetric shapes, and, in some cases, tails of blue stars and/or X-ray gas, with…

Cosmology and Nongalactic Astrophysics · Physics 2022-06-22 Florence Durret , Lucie Degott , Catarina. Lobo , Harald Ebeling , Mathilde Jauzac , Sut-Ieng Tam

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…

Astrophysics of Galaxies · Physics 2024-04-10 Ankit Singh , Shreya Davessar , Mamta Gulati , Jasjeet Singh Bagla , Meenu Prajapati

Galaxies living in rich environments are suffering different perturbations able to drastically affect their evolution. Among these, ram pressure stripping, i.e. the pressure exerted by the hot and dense intracluster medium (ICM) on galaxies…

Astrophysics of Galaxies · Physics 2022-06-01 A. Boselli , M. Fossati , M. Sun

Galaxy evolution can be dramatically affected by the environment, especially by the dense environment of a galaxy cluster. Recent observational studies show that massive galaxies undergoing strong ram pressure stripping (RPS) also show an…

Astrophysics of Galaxies · Physics 2023-05-03 Nina Akerman , Stephanie Tonnesen , Bianca M. Poggianti , Rory Smith , Antonino Marasco

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 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…

Cosmology and Nongalactic Astrophysics · Physics 2010-11-03 Tomás E. Tecce , Sofía A. Cora , Patricia B. Tissera , Mario G. Abadi , Claudia del P. Lagos

High resolution (1'' $\times$ 2'') ALMA CO(2-1) observations of the ram pressure stripped galaxy NGC 4402 in the Virgo cluster show some of the clearest evidence yet for the impacts of ram pressure on the molecular ISM of a galaxy. The…

We investigate the influence of ram-pressure stripping on the internal gas kinematics of simulated spiral galaxies. Additional emphasis is put on the question of how the resulting distortions of the gaseous disc are visible in the rotation…

Astrophysics · Physics 2009-11-13 T. Kronberger , W. Kapferer , S. Unterguggenberger , S. Schindler , B. L. Ziegler

In the current epoch, one of the main mechanisms driving the growth of galaxy clusters is the continuous accretion of group-scale halos. In this process, the ram pressure applied by the hot intracluster medium on the gas content of the…

Astrophysics of Galaxies · Physics 2016-08-24 S. De Grandi , D. Eckert , S. Molendi , M. Girardi , E. Roediger , M. Gaspari , F. Gastaldello , S. Ghizzardi , M. Nonino , M. Rossetti

Ram pressure stripping (RPS) is one of the most invoked mechanisms to explain the observed differences between cluster and field galaxies. In the local Universe, its effect on the galaxy star forming properties has been largely tackled and…

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

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…

Astrophysics · Physics 2011-02-11 J. A. Hester

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…

Astrophysics · Physics 2010-11-04 B. Vollmer , V. Cayatte , C. Balkowski , W. J. Duschl
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