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Galaxy Evolution Explorer observations of IC 3418, a low surface brightness galaxy in the Virgo Cluster, revealed a striking 17 kpc UV tail of bright knots and diffuse emission. H alpha imaging confirms that star formation is ongoing in the…

We investigate the importance of varying the ram pressure to more realistically mimic the infall of a cluster satellite galaxy when comparing ram pressure stripping simulations to observations. We examine the gas disk and tail properties of…

Astrophysics of Galaxies · Physics 2019-04-10 Stephanie Tonnesen

We describe and constrain the origins of ISM structures likely created by ongoing ICM ram pressure stripping in two Virgo Cluster spirals, NGC 4522 and NGC 4402, using HST BVI images of dust extinction and stars, as well as supplementary…

Astrophysics of Galaxies · Physics 2016-07-20 A. Abramson , J. Kenney , H. Crowl , T. Tal

Galaxies moving through the intracluster medium (ICM) of a cluster of galaxies can lose gas via ram pressure stripping. This stripped gas forms a tail behind the galaxy which is potentially observable. In this paper, we carry out…

Cosmology and Nongalactic Astrophysics · Physics 2011-01-20 Stephanie Tonnesen , Greg L. Bryan

We report the detection of H$\alpha$ trails behind three new intermediate-mass irregular galaxies in the NW outskirts of the nearby cluster of galaxies Abell 1656 (Coma). Hints that these galaxies possess an extended component were found in…

Astrophysics of Galaxies · Physics 2018-10-31 G. Gavazzi , G. Consolandi , M. L. Gutierrez , A. Boselli , M. Yoshida

We investigated ram-pressure effects by an intracluster wind on an inner disk of spiral galaxies by a hydrodynamical simulation. Even if the wind is mild and not strong enough to strip the gas disk, the ram pressure disturbs orbits of the…

Astrophysics · Physics 2015-06-24 Makoto Hidaka , Yoshiaki Sofue

We present results from an ongoing survey dedicated to the ionized gas kinematics of Virgo cluster spiral galaxies using Fabry-Perot interferometry. Our goal is to study the environmental effects on galaxy evolution in the Virgo cluster. We…

Ram pressure stripping can remove significant amounts of gas from galaxies that orbit in clusters and massive groups, and thus has a large impact on the evolution of cluster galaxies. In this paper, we reconstruct the present-day…

Astrophysics · Physics 2009-11-13 M. Brueggen , G. De Lucia

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,…

The influence of a time-varying ram pressure on spiral galaxies in clusters is explored with a new simulation method based on the N-body SPH/tree code GADGET. We have adapted the code to describe the interaction of two different gas phases,…

Astrophysics · Physics 2009-11-13 P. Jachym , J. Palous , J. Koppen , F. Combes

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…

Using imaging that shows four magnitudes of main sequence stars, we have discovered that the Galactic globular cluster NGC 1851 is surrounded by a halo that is visible from the tidal radius of 700 arcsec (41 pc) to more than 4500 arcsec…

Astrophysics of Galaxies · Physics 2015-05-14 Edward W. Olszewski , Abhijit Saha , Patricia Knezek , Annapurni Subramaniam , Thomas de Boer , Patrick Seitzer

The dense environment of a galaxy cluster can radically transform the content of in-falling galaxies. Recent observations have found a significant population of active galactic nuclei (AGN) within "jellyfish galaxies," galaxies with…

Astrophysics of Galaxies · Physics 2020-05-27 Angelo Ricarte , Michael Tremmel , Priyamvada Natarajan , Thomas Quinn

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

The two sources AGC 226178 and NGVS 3543, an extremely faint, clumpy, blue stellar system and a low surface brightness dwarf spheroidal, are adjacent systems in the direction of the Virgo cluster. Both have been studied in detail…

We investigate the effects of ram pressure on the molecular ISM in the disk of the Coma cluster galaxy NGC 4921, via high resolution CO observations. We present 6" resolution CARMA CO(1-0) observations of the full disk, and 0.4" resolution…

We present a detailed analysis of high resolution H I observations of the Magellanic spiral galaxies NGC 4618 and NGC 4625. While the H I disk of NGC 4625 is remarkably quiescent with a nearly uniform velocity dispersion and no evidence of…

Cosmology and Nongalactic Astrophysics · Physics 2012-07-18 Jane F. Kaczmarek , Eric M. Wilcots

We present a wide-field study of the globular cluster systems (GCS) of the elliptical galaxy NGC 3640 and its companion NGC 3641, based on observations from Gemini Multi-Object Spectrograph/Gemini using the g'r'i' filters. NGC 3640 is a…

Astrophysics of Galaxies · Physics 2024-10-16 Ana Ines Ennis , Juan Pablo Caso , Lilia Patricia Bassino

We investigate the influence of ram-pressure stripping on the star formation and the mass distribution in simulated spiral galaxies. Special emphasis is put on the question where the newly formed stars are located. The stripping radius from…

Astrophysics · Physics 2009-11-13 T. Kronberger , W. Kapferer , C. Ferrari , S. Unterguggenberger , S. Schindler

We present results from a mosaic of nine Chandra observations of M86 and the surrounding field. We detect three main diffuse components: the Virgo ICM at ~2.4 keV, the extended halo of M86 at ~1.2 keV, and the cooler central and stripped…

Astrophysics · Physics 2009-11-13 S. Randall , P. Nulsen , W. R. Forman , C. Jones , M. Machacek , S. S. Murray , B. Maughan
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