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Using new HST imaging, we identify a large, evolved system of super star clusters in a disk region just outside the starburst core in the prototypical starburst galaxy M82, ``M82 B.'' This region has been suspected to be a fossil starburst…

Astrophysics · Physics 2007-05-23 R. de Grijs , R. W. O'Connell , J. S. Gallagher

In a series of papers, we present detailed chemo-dynamical simulations of tidal dwarf galaxies (TDGs). After the first paper, where we focused on the very early evolution, we present in this work simulations on the long-term evolution of…

Astrophysics of Galaxies · Physics 2015-06-23 Sylvia Ploeckinger , Simone Recchi , Gerhard Hensler , Pavel Kroupa

The "too big to fail" problem is revisited by studying the tidal evolution of populations of dwarf satellites with different density profiles. The high resolution cosmological $\rm \Lambda CDM$ "ErisMod" set of simulations is used. These…

Astrophysics of Galaxies · Physics 2016-08-17 Mihai Tomozeiu , Lucio Mayer , Thomas Quinn

Based on recent findings of a formation mechanism of substructure in tidal tails by Kuepper, Macleod & Heggie (2008) we investigate a more comprehensive set of N-body models of star clusters on orbits about a Milky-Way-like potential. We…

Solar and Stellar Astrophysics · Physics 2015-05-14 A. H. W. Kuepper , P. Kroupa , H. Baumgardt , D. C. Heggie

There is an intriguing and growing population of Neptune-sized planets with stellar obliquities near $\sim90^{\circ}$. One previously proposed formation pathway is a disk-driven resonance, which can take place at the end stages of planet…

Earth and Planetary Astrophysics · Physics 2024-10-04 Emma Louden , Sarah Millholland

The kinetic energy in tidal flows, when converted into heat, can affect the internal structure of a star and shift its location on a color-magnitude diagram from that of standard models. In this paper we explore the impact of injecting heat…

Astrophysics of Galaxies · Physics 2024-04-19 S. Jane Arthur , Gloria Koenigsberger , Kristin Brady , Diana Estrella-Trujillo , Catherine Pilachowski

Using N-body simulations, we have modeled the production and evolution of substructures in the intracluster light (ICL) of a simulated galaxy cluster. We use a density-based definition of ICL, where ICL consists of luminous particles which…

Astrophysics of Galaxies · Physics 2011-02-11 Craig S. Rudick , J. Christopher Mihos , Lucille H. Frey , Cameron K. McBride

In recent years it has been shown that the tidal coupling between extrasolar planets and their stars could be an important mechanism leading to orbital evolution. Both the tides the planet raises on the star and vice versa are important and…

Solar and Stellar Astrophysics · Physics 2015-05-27 Kaloyan Penev , Dimitar Sasselov

We study the fate of internal gravity waves, which are excited by tidal forcing by a short-period planet at the interface of convection and radiation zones, approaching the centre of a solar-type star. We study at what amplitude these wave…

Earth and Planetary Astrophysics · Physics 2015-05-18 A. J. Barker , G. I. Ogilvie

How molecular clouds fragment and create the dense structures which go on to form stars is an open question. We investigate the relative importance of different energy terms (kinetic, thermal, magnetic, and gravity - both self-gravity and…

Astrophysics of Galaxies · Physics 2022-04-07 S. Ganguly , S. Walch , S. D. Clarke , D. Seifried

We present a sample of dwarf galaxies that suffer ongoing disruption by the tidal force of nearby massive galaxies. Analysing structural and stellar population properties using the archival imaging and spectroscopic data from the Sloan…

Astrophysics of Galaxies · Physics 2015-06-23 Sanjaya Paudel , Chang H. Ree

Most stars form in highly clustered environments within molecular clouds, but eventually disperse into the distributed stellar field population. Exactly how the stellar distribution evolves from the embedded stage into gas-free associations…

Astrophysics of Galaxies · Physics 2023-09-21 Juan P. Farias , Stella S. R. Offner , Michael Y. Grudić , Dávid Guszejnov , Anna L. Rosen

We test the hypothesis that metal-poor globular clusters form within disk galaxies at redshifts z>3. Numerical simulations demonstrate that giant gas clouds, which are cold and dense enough to produce massive star clusters, assemble…

Astrophysics · Physics 2010-11-11 Jose L. Prieto , Oleg Y. Gnedin

In the centers of dense star clusters, close encounters between stars and compact objects are likely to occur. We study tidal disruption events of main-sequence (MS) stars by stellar-mass black holes (termed $\mu$TDEs), which can shed light…

High Energy Astrophysical Phenomena · Physics 2024-05-08 Pavan Vynatheya , Taeho Ryu , Ruediger Pakmor , Selma E. de Mink , Hagai B. Perets

Planets in the liquid-water habitable zone of low-mass stars experience large tidal forces, $10^3$ to $10^4$ times those on Earth, due to the small distance between the habitable zone and the host stars. Therefore, interior solid tides,…

Earth and Planetary Astrophysics · Physics 2025-07-08 Jiaru Shi , Jun Yang , Dorian S. Abbot , Yonggang Liu , Wanying Kang , Yufeng Lin

We present a new implementation of star formation in cosmological simulations, by considering star clusters as a unit of star formation. Cluster particles grow in mass over several million years at the rate determined by local gas…

Astrophysics of Galaxies · Physics 2017-01-11 Hui Li , Oleg Y. Gnedin , Nickolay Y. Gnedin , Xi Meng , Vadim A. Semenov , Andrey V. Kravtsov

We present simulations of the tidal disruption of a solar mass star by a $10^6M_{\odot}$ black hole. These, for the first time, cover the full time evolution of the tidal disruption event, starting well before the initial encounter and…

High Energy Astrophysical Phenomena · Physics 2015-08-06 Eric R. Coughlin , Chris Nixon

Recent observations have revealed a variety of young star clusters, including embedded systems, young massive clusters, and associations. We study the formation and dynamical evolution of these clusters using a combination of simulations…

Astrophysics of Galaxies · Physics 2016-01-27 Michiko Fujii , Simon Portegies Zwart

We present a new implementation of the Monte Carlo method to simulate the evolution of star clusters. The major improvement with respect to the previously developed codes is the treatment of the external tidal field taking into account for…

Solar and Stellar Astrophysics · Physics 2015-06-22 A. Sollima , A. Mastrobuono Battisti

We track the histories of massive clusters of galaxies formed within a cosmological hydrodynamic simulation. Specifically, we track the time evolution of the energy in random bulk motions of the intracluster medium and X-ray measures of…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 Eric J. Hallman , Tesla E. Jeltema
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