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Related papers: A Primeval Magellanic Stream and Others

200 papers

We revisit the orbital history of the Triangulum galaxy (M33) around the Andromeda galaxy (M31) in view of the recent Gaia Data Release 2 proper motion measurements for both Local Group galaxies. Earlier studies consider highly idealised…

Astrophysics of Galaxies · Physics 2020-02-05 Thor Tepper-García , Joss Bland-Hawthorn , Di Li

The dynamics of stellar streams in rotating barred potentials is explained for the first time. Naturally, neighbouring stream stars reach pericentre at slightly different times. In the presence of a rotating bar, these neighbouring stream…

Astrophysics of Galaxies · Physics 2018-11-02 Kohei Hattori , Denis Erkal , Jason L. Sanders

We report results on the internal dynamical evolution of old star clusters located in the outer regions of the Small Magellanic Cloud (SMC). Because the SMC has been imprinted with evidence of tidal interaction with the Large Magellanic…

Astrophysics of Galaxies · Physics 2025-01-23 Andrés E. Piatti

Understanding the hydrodynamical processes and conditions at the interface between the Magellanic Stream (MS) and the Galactic halo is critical to understanding the MS and by extension, gaseous tails in other interacting galaxies. These…

Astrophysics of Galaxies · Physics 2009-08-31 Lou Nigra , Snezana Stanimirovic , J. S. Gallagher , Felix J. Lockman , David L. Nidever , Steven R. Majewski

We identify and investigate a pre-infall analog of the Large and Small Magellanic Clouds (LMC, SMC) in the HESTIA suite of constrained cosmological simulations. The system, dynamically isolated from the Local Group, evolves over ~6 Gyr and…

Astrophysics of Galaxies · Physics 2025-09-27 Robin Chisholm , Elena D'Onghia , Noam Libeskind , Scott Lucchini , Andrew J. Fox , Matthias Steinmetz

We investigate the present distributions of gas and young stars in the Large and Small Magellanic Clouds (LMC and SMC) based on fully self-consistent numerical simulations of the Clouds for the last ~ 0.8 Gyr. Our principal results, which…

Astrophysics · Physics 2009-11-11 Kenji Bekki , Masashi Chiba

We characterize the Magellanic Corona, the warm gaseous halo around the Large Magellanic Cloud (LMC). The Corona is a key ingredient in the formation of the Magellanic Stream (Lucchini et al. 2020, 2021) and has recently been observed in…

Astrophysics of Galaxies · Physics 2024-05-15 Scott Lucchini , Elena D'Onghia , Andrew J. Fox

Mergers and tidal interactions between massive galaxies and their dwarf satellites are a fundamental prediction of the Lambda-Cold Dark Matter cosmology. These events are thought to influence galaxy evolution throughout cosmic history and…

Astrophysics of Galaxies · Physics 2018-12-03 David Martinez-Delgado

We investigate the tidally-induced conversion of barred late-type spirals to Magellanic-type discs with numerical simulations, to establish how the lifetime of lopsidedness (asymmetry) varies with numerical parametrizations. Using a…

Astrophysics of Galaxies · Physics 2015-06-18 Cameron Yozin , Kenji Bekki

The Magellanic Stream (MS) is a nearby laboratory for studying the fate of cool gas streams injected into a gaseous galactic halo. We investigate properties of the boundary layer between the cool MS gas and the hot Milky Way halo with 21 cm…

Astrophysics of Galaxies · Physics 2015-06-11 Lou Nigra , Snezana Stanimirovic , John S. Gallagher , Kenneth Wood , David Nidever , Steven Majewski

One of the most promising tracers of the Galactic potential in the halo region are stellar streams. However, individual stream fits can be limited by systematic biases. To study these individual stream systematics, we fit streams in Milky…

Astrophysics of Galaxies · Physics 2021-11-17 Stella Reino , Robyn E. Sanderson , Nondh Panithanpaisal , Elena M. Rossi , Konrad Kuijken

I use high resolution N-body/SPH simulations to model the new proper motion of the Large Magellanic Cloud (LMC) within the Milky Way (MW) halo and investigate the effects of gravitational and hydrodynamical forces on the formation of the…

Astrophysics · Physics 2014-11-18 Chiara Mastropietro

The basic properties of the candidate binary cluster population in the Magellanic Clouds and Galaxy are similar. The fraction of candidate binary systems is $\sim$10% and the pair separation histogram exhibits a bimodal distribution…

Astrophysics of Galaxies · Physics 2013-05-28 Raúl de la Fuente Marcos , Carlos de la Fuente Marcos

Flattened axisymmetric galactic potentials are known to host minor orbit families surrounding orbits with commensurable frequencies. The behavior of orbits that belong to these orbit families is fundamentally different than that of typical…

Astrophysics of Galaxies · Physics 2023-01-09 Tomer D. Yavetz , Kathryn V. Johnston , Sarah Pearson , Adrian M. Price-Whelan , Martin D. Weinberg

Turbulence plays a critical role in regulating star formation in molecular clouds and is also observed in simulations of primordial halos that host Population III (Pop III) stars. The relative velocity between baryons and dark matter at the…

The Magellanic Stream (MS) has long been known to contain multiple H I strands and corresponding stellar populations are beginning to be discovered. Combining a sample of 17 stars from the H3 ("Hectochelle in the Halo at High Resolution")…

Astrophysics of Galaxies · Physics 2025-02-19 Dennis Zaritsky , Vedant Chandra , Charlie Conroy , Ana Bonaca , Phillip A. Cargile , Rohan P. Naidu

The Milky Way (MW) dwarf system presents two exceptional features, namely it forms a thick plane called the Vast Polar Structure (VPOS), and the two biggest dwarves, the Magellanic Clouds (MCs), are irregular galaxies that are almost never…

Cosmology and Nongalactic Astrophysics · Physics 2012-11-21 Sylvain Fouquet , François Hammer , Yanbin Yang , Mathieu Puech , Hector Flores

As we strive to understand how galaxies evolve it is crucial that we resolve physical processes and test emerging theories in nearby systems that we can observe in great detail. Our own Galaxy, the Milky Way, and the nearby Magellanic…

Due to their close proximity, the Large and Small Magellanic Clouds (SMC/LMC) provide natural laboratories for understanding how galaxies form and evolve. With the goal of determining the structure and dynamical state of the SMC, we present…

Astrophysics of Galaxies · Physics 2020-05-06 Michele De Leo , Ricardo Carrera , Noelia E. D. Noel , Justin I. Read , Denis Erkal , Carme Gallart

Recent proper motion measurements of the Large and Small Magellanic Clouds (LMC and SMC, respectively) by Kallivayalil et al (2006a,b) suggest that the 3D velocities of the Clouds are substantially higher (~100 km/s) than previously…

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