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相关论文: Evolution of the Small Magellanic Cloud

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The projected distribution of stars in the Small Magellanic Cloud (SMC) from the Magellanic Clouds Photometric Survey is analysed. Stars of different ages are selected via criteria based on V magnitude and V-I colour, and the degree of…

天体物理学 · 物理学 2011-07-21 M. Gieles , N. Bastian , B. Ercolano

Using a cosmological hydrodynamical simulation of a galaxy of similar mass to the Large Magellanic Cloud (LMC), we examine the predicted characteristics of its lowest metallicity populations. In particular, we emphasise the spatial…

星系天体物理 · 物理学 2015-06-16 Chris B. Brook , Maider S. Miranda , Brad. K. Gibson , Kate Pilkington , Greg S. Stinson

The origin of the gas in between the Magellanic Clouds (MCs) -- known as the `Magellanic Bridge' (MB) -- is puzzling. Numerical simulations suggest that the MB formed from tidally stripped gas and stars in a recent interaction between the…

星系天体物理 · 物理学 2015-06-15 Noelia E. D. Noel , Blair C. Conn , Ricardo Carrera , Justin I. Read , Hans-Walter Rix , Andrew Dolphin

Our Galaxy is surrounded by a large family of dwarf galaxies of which the most massive are the Large and Small Magellanic Clouds (LMC and SMC). Recent evidence suggests that systems with the mass of the Local Group accrete galaxies in…

宇宙学与河外天体物理 · 物理学 2015-05-30 Matthew Nichols , James Colless , Matthew Colless , Joss Bland-Hawthorn

The Milky Way (MW) offers a uniquely detailed view of galactic structure and is often regarded as a prototypical spiral galaxy. But recent observations indicate that the MW is atypical: it has an undersized supermassive black hole at its…

星系天体物理 · 物理学 2019-01-18 Marius Cautun , Alis J. Deason , Carlos S. Frenk , Stuart McAlpine

The galactic tidal interaction is a possible mechanism to trigger the active star formation in galaxies. Recent analyses using the Hi data in the Large Magellanic Cloud (LMC) proposed that the tidally driven colliding HI flows, induced by…

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…

We investigate the evolution of the interstellar medium (ISM) in self-consistent, chemodynamical simulations of the Magellanic Clouds (MCs) during their recent (z<0.3) past. An explicit modelling of dust and molecular hydrogen lifecycles…

星系天体物理 · 物理学 2015-06-19 Cameron Yozin , Kenji Bekki

The Magellanic Stream and Leading Arm of HI that stretches from the Large and Small Magellanic Clouds (LMC and SMC) and over 200 degrees of the Southern sky is thought to be formed from multiple encounters between the LMC and SMC. In this…

星系天体物理 · 物理学 2018-05-02 Stephen A. Pardy , Elena D'Onghia , Andrew J. Fox

We present the first reconstruction of the star formation history (SFH) of the Large and Small Magellanic Clouds (LMC and SMC) using Long Period Variable stars. These cool evolved stars reach their peak luminosity in the near-infrared;…

星系天体物理 · 物理学 2016-10-26 Sara Rezaei kh. , Atefeh Javadi , Habib Khosroshahi , Jacco Th. van Loon

The Magellanic Clouds offer unique opportunities to study star formation both on the global scales of an interacting system of gas-rich galaxies, as well as on the scales of individual star-forming clouds. The interstellar media of the…

天体物理学 · 物理学 2009-11-13 J. M. Oliveira

Simulations of structure formation in the standard cold dark matter cosmological model quantify the dark matter halos of galaxies. Taking into account dynamical friction between the dark matter halos, we investigate the past orbital…

星系天体物理 · 物理学 2024-03-28 Wolfgang Oehm , Pavel Kroupa

The Large and Small Magellanic Cloud (LMC and SMC) form the closest interacting galactic system to the Milky Way, therewith providing a laboratory to test cosmological models in the local Universe. We quantify the likelihood for the…

星系天体物理 · 物理学 2024-10-02 Moritz Haslbauer , Indranil Banik , Pavel Kroupa , Hongsheng Zhao , Elena Asencio

The LMC, SMC, and the Milky Way are a spectacular set of interacting galaxies. The prominent tidal arms which protrude from the Magellanic Clouds extend for tens of kiloparsecs and cover a large part of the southern sky. These arms, and the…

天体物理学 · 物理学 2007-05-23 C. Bruens , J. Kerp , L. Staveley-Smith

We investigate the chemical evolution of the Small Magellanic Cloud (SMC) based on abundance data of planetary nebulae (PNe). The main goal is to investigate the time evolution of the oxygen abundance in this galaxy by deriving an…

天体物理学 · 物理学 2009-11-13 T. P. Idiart , W. J. Maciel , R. D. D. Costa

The Large and Small Magellanic Clouds (LMC and SMC) are the Milky Way's nearest interacting galaxy pair, offering a unique laboratory for studying tidal effects on galactic disks. Despite extensive survey efforts, the three-dimensional…

(ABRIDGED) The evolution and structure of the Magellanic Clouds is presently under debate. The classical scenario where both the Large and Small Magellanic Clouds (LMC, SMC) are orbiting the Milky Way has been challenged by an alternative…

星系天体物理 · 物理学 2016-06-08 Bruno Dias , Leandro Kerber , Beatriz Barbuy , Eduardo Bica , Sergio Ortolani

In this contribution I will present the current status of our project of stellar population analyses and spatial information of both Magellanic Clouds (MCs). The Magellanic Clouds - especially the LMC with its large size and small depth…

天体物理学 · 物理学 2007-05-23 Jochen M. Braun

We compare the properties of gas flows on both the near and far side of the Large Magellanic Cloud (LMC) disk using Hubble Space Telescope UV absorption-line observations toward an AGN behind (transverse) and a star within (down-the-barrel)…

星系天体物理 · 物理学 2016-01-27 Kat Barger , Nicolas Lehner , J. Chris Howk

The Magellanic Clouds (MCs) offer a unique laboratory for studying galaxy interaction and the evolution of dwarf galaxies. By investigating when and how stars formed, the star formation history (SFH) is a powerful tool to provide…

星系天体物理 · 物理学 2026-02-17 F. Ficara , V. Ripepi , M. Cignoni , M. Gatto , M. Marconi , M. Tosi , M. Bellazzini , E. K. Grebel , M. R. Cioni , C. Tortora , A. Mercurio