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Related papers: From Tidal Dwarf Galaxies to Satellite Galaxies

200 papers

Hundreds of globular clusters and dwarf galaxies encircle the Milky Way. Many of these systems have undergone partial disruption due to tidal forces, littering the halo with stellar streams. These tidal tails are sensitive to the Galactic…

Solar and Stellar Astrophysics · Physics 2016-08-03 Andrew R. Casey

We investigate the effect that dwarf galaxies have on the orbits, tidal histories, and assumed formation environment of Milky Way globular clusters. We determine the orbits of the Milky Way's 150 globular clusters in a gravitational…

Astrophysics of Galaxies · Physics 2020-12-22 Turner Garrow , Jeremy J. Webb , Jo Bovy

Tidal interactions between disc galaxies depend on galaxy structure, but the details of this relationship are incompletely understood. I have constructed a three-parameter grid of bulge/disc/halo models broadly consistent with $\Lambda$CDM,…

Astrophysics of Galaxies · Physics 2015-10-14 Joshua E. Barnes

[Abridged...] We investigate the process of galaxy formation as can be observed in the only currently forming galaxies -- the so-called Tidal Dwarf Galaxies, hereafter TDGs -- through observations of the molecular gas detected via its CO…

Astrophysics · Physics 2009-11-07 J. Braine , P. -A. Duc , U. Lisenfeld , V. Charmandaris , O. Vallejo , S. Leon , E. Brinks

Properties of nearby dwarf galaxies are briefly discussed. Dwarf galaxies vary widely in their star formation histories, the ages of their subpopulations, and in their enrichment history. Furthermore, many dwarf galaxies show evidence for…

Astrophysics · Physics 2009-10-31 Eva K. Grebel

Our aim is to study the evolution of tidal dwarf galaxies. The first step is to understand whether a model galaxy without Dark Matter can sustain the feedback of the ongoing star formation. We present tests of the evolution of models in…

Astrophysics · Physics 2009-11-11 S. Recchi , P. Kroupa , Ch. Theis , G. Hensler

Tidal interactions between massive galaxies and their satellites are fundamental processes in a Universe with L-Cold Dark Matter cosmology, redistributing material into faint features that preserve records of past galactic interactions.…

The recently discovered vast thin plane of dwarf satellites orbiting the Andromeda Galaxy (M31) adds to the mystery of the small scale distribution of the Local Group's galaxy population. Such well defined planar structures are apparently…

Astrophysics of Galaxies · Physics 2016-12-14 Nuwanthika Fernando , Veronica Arias , Magda Guglielmo , Geraint F. Lewis , Rodrigo A. Ibata , Chris Power

The surroundings of globular clusters in the outer halo are one of the best places to look for the remnants of ancient dwarf satellites. The classical Searle & Zinn (1978) scenario of the formation of the Milky Way, in which the halo…

Interacting galaxies favor the formation of star clusters but are also suspected to affect their evolution through an intense and rapidly varying tidal field. Treating this complex behaviour remains out-of-reach of (semi-)analytical…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-12 Florent Renaud , Mark Gieles

We present an extensive parameter survey to study the influence of halo mass profiles on the development of tidal tails in interacting disk galaxies. We model the galaxies using a fixed exponential disk with a central bulge and vary the…

Astrophysics · Physics 2009-10-31 John Dubinski , J. Christopher Mihos , Lars Hernquist

We present the first simulations of tidal stirring of dwarf galaxies in the Local Group carried out in a cosmological context. We use the ErisDARK simulation of a MW-sized galaxy to identify some of the most massive subhalos ($M_{vir} >…

Astrophysics of Galaxies · Physics 2016-03-09 Mihai Tomozeiu , Lucio Mayer , Thomas Quinn

Using V and I images obtained with WFPC2/HST, we investigate compact stellar structures within tidal tails. Six regions of tidal debris in the four classic ``Toomre Sequence'' mergers: NGC 4038/39 (``Antennae''), NGC 3256, NGC 3921, and NGC…

In the hierarchical formation scenario in which the outer halo of the Milky Way is the result of the continuous accretion of low-mass galaxies, a fraction of the Galactic globular cluster system might have originated in and been accreted…

How did the dwarf galaxy population of present-day galaxy clusters form and grow over time? We address this question by analysing the history of dark matter subhaloes in the Millennium-II cosmological simulation. A semi-analytic model…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 Thorsten Lisker , Simone M. Weinmann , Joachim Janz , Hagen T. Meyer

Tidal dwarf galaxies (TDGs) are low-mass objects that form within tidal and/or collisional debris ejected from more massive interacting galaxies. We use CO($1-0$) observations from ALMA and integral-field spectroscopy from MUSE to study…

The spatial distribution of galaxies in the Local Group (LG) is the footprint of its formation mechanism and the gravitational interactions among its members and the external massive galaxies or galaxy groups. Recently, Pasetto & Chiosi…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 Stefano Pasetto , Cesare Chiosi

We study the formation of planes of dwarf galaxies around Milky Way (MW)-mass haloes in the EAGLE galaxy formation simulation. We focus on satellite systems similar to the one in the MW: spatially thin or with a large fraction of members…

Astrophysics of Galaxies · Physics 2019-07-08 Shi Shao , Marius Cautun , Carlos S. Frenk

The environmental dependence of the morphology of dwarf galaxies in isolated satellite systems is analyzed to understand the origin of the dwarf galaxy morphology using the visually classified morphological types of 5836 local galaxies with…

Astrophysics of Galaxies · Physics 2017-10-04 Hong Bae Ann

Dwarf galaxies are thought of as the building blocks of large galaxies such as our Milky Way. This paper presents new high-resolution hydrodynamical simulations of dwarf galaxies and their intergalactic medium with the \texttt{GIZMO} code.…

Astrophysics of Galaxies · Physics 2025-06-06 Pei-Cheng Tung , Ke-Jung Chen