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We use a combination of self-supervised machine learning and visual classification to identify tidal features in a sample of 34,331 galaxies with stellar masses $\log_{10}(M_{*}/\rm{M}_{\odot})\geq9.5$ and redshift $z\leq0.4$, drawn from…

Astrophysics of Galaxies · Physics 2025-09-24 A. Desmons , S. Brough , F. Lanusse , L. Canepa , A. Khalid

We use simulations of merging galaxies to explore the sensitivity of the morphology of tidal tails to variations of the halo mass distributions in the parent galaxies. Our goal is to constrain the mass of dark halos in well-known merging…

Astrophysics · Physics 2008-11-26 John Dubinski , J. Christopher Mihos , Lars Hernquist

We examine the tidal disruption of satellite galaxies in a cosmological simulation of the formation of a disk galaxy in the $\Lambda$CDM scenario. We find that the disruption of satellite galaxies in orbits roughly coplanar with the disk…

Astrophysics · Physics 2009-11-07 Amina Helmi , Julio F. Navarro , Andres Meza , Matthias Steinmetz , Vincent R. Eke

The tidal torque theory (TTT) predicts that galaxy spins are correlated with the surrounding tidal field, reflecting how angular momentum is acquired during structure formation. We present a new observational test of this prediction using…

Astrophysics of Galaxies · Physics 2025-12-05 Jun-Sung Moon , Teppei Okumura

Within the hierarchical framework for galaxy formation, merging and tidal interactions are expected to shape large galaxies to this day. While major mergers are quite rare at present, minor mergers and satellite disruptions - which result…

While most ram pressure studies have focused on ram pressure stripping in galaxy clusters, we devise a novel approach based on a kinematic measurement of ram pressure perturbations in HI velocity fields for intergalactic material (IGM)…

Astrophysics of Galaxies · Physics 2014-06-16 Sebastian Haan , Robert Braun

This paper presents a method for finding ram-pressure stripped (RPS) galaxy candidates by performing a morphological analysis of galaxy images obtained from the Legacy survey. We consider a sample of about 600 galaxies located in different…

We have investigated the role that different galaxy types have in galaxy-galaxy interactions in compact groups. N-body simulations of 6 galaxies consisting of a differing mixture of galaxy types were run to compare the relative importance…

Astrophysics of Galaxies · Physics 2024-05-02 Mark J. Henriksen , Mateo Mejia

We have reported in a previous paper (AAS 116, 417, 1996) B, V and I band photometric data for a sample of 24 edge-on interacting spiral galaxies, together with a control sample of 7 edge-on isolated galaxies. We discuss here the main…

Astrophysics · Physics 2007-05-23 Vladimir Reshetnikov , Francoise Combes

We present the results of our analysis of the geometrical tidal tail characteristics for nearby and distant interacting galaxies. The sample includes more than two hundred nearby galaxies and about seven hundred distant ones. The distant…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 Y. H. Mohamed , V. P. Reshetnikov , N. Ya. Sotnikova

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…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 W. Kapferer , C. Sluka , S. Schindler , C. Ferrari , B. Ziegler

We use SDSS-DR14 to construct a sample of galaxy systems consisting of a central object and two satellites. We adopt projected distance and radial velocity difference criteria and impose an isolation criterion to avoid membership in larger…

Astrophysics of Galaxies · Physics 2021-01-01 Valeria Mesa , Sol Alonso , Georgina Coldwell , Diego García Lambas , Jose Luis Nilo Castellón

This paper has been withdrawn by the author. A computer simulation of two galaxies, passing in parabolic orbits, was made to show their interaction and the tidal patterns formed. The galaxies were modelled as a point masses surrounded by 5…

Astrophysics of Galaxies · Physics 2012-10-31 Timothy Harrison

The missing mass problem has not been solved decisively yet. Observations show that if gravity is to be modified, then the MOND theory is its excellent approximation on galactic scales. MOND suggests an adjustments of the laws of physics in…

Astrophysics of Galaxies · Physics 2019-08-22 Michal Bílek , Ingo Thies , Pavel Kroupa , Benoit Famaey

Exploiting the data from the GAs Stripping Phenomena in galaxies with MUSE (GASP) program, we compare the integrated Star Formation Rate- Mass relation (SFR-M_ast) relation of 42 cluster galaxies undergoing ram pressure stripping…

Deep scaled array VLA 20 and 6cm observations including polarization of 19 Virgo spirals are presented. This sample contains 6 galaxies with a global minimum of 20cm polarized emission at the receding side of the galactic disk and…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 B. Vollmer , M. Soida , R. Beck , A. Chung , M. Urbanik , K. T. Chyzy , K. Otmianowska-Mazur , J. D. P. Kenney

We have studied a sample of 24 edge-on interacting galaxies and compared them to edge-on isolated galaxies, to investigate the effects of tidal interaction on disk thickening. We found that the ratio h/z of the radial exponential…

Astrophysics · Physics 2007-05-23 Vladimir Reshetnikov , Francoise Combes

Stellar radial migration has predominantly been examined in isolated disc galaxies where non-axisymmetric structures drive the process. By contrast, while tidal interactions are known for having an influence, their contribution remains…

Astrophysics of Galaxies · Physics 2026-01-14 Dylan Hebrail , Óscar Jiménez-Arranz , Santi Roca-Fàbrega

We investigate the effects of self-interacting dark matter (SIDM) on the tidal stripping and evaporation of satellite galaxies in a Milky Way-like host. We use a suite of five zoom-in, dark-matter-only simulations, two with…

Astrophysics of Galaxies · Physics 2016-09-14 Gregory A. Dooley , Annika H. G. Peter , Mark Vogelsberger , Jesús Zavala , Anna Frebel

We present 3D hydrodynamical simulations of ram pressure stripping of a disc galaxy orbiting in a galaxy cluster. In this paper, we focus on the properties of the galaxies' tails of stripped gas. The galactic wakes show a flaring width,…

Astrophysics · Physics 2009-11-13 E. Roediger , M. Brueggen