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Related papers: Disk Destruction and (Re)-Creation in the Magellan…

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High spatial resolution imaging with the Hubble Space Telescope allowed us to resolve the compact HII, region N81 lying in the Small Magellanic Cloud (SMC). We show the presence of a tight cluster of newborn massive stars embedded in this…

Astrophysics · Physics 2007-05-23 M. Heydari-Malayeri , M. R. Rosa , H. Zinnecker , L. Deharveng , V. Charmandaris

The reflex motion and distortion of the Milky Way (MW) halo caused by the infall of a massive Large Magellanic Cloud (LMC) has been demonstrated to result in an excess of orbital poles of dark matter halo particles towards the LMC orbital…

Astrophysics of Galaxies · Physics 2022-06-22 Marcel S. Pawlowski , Pierre-Antoine Oria , Salvatore Taibi , Benoit Famaey , Rodrigo Ibata

Because the galaxies of the Local Group have such large angular sizes, much of their diffuse, large-angular-scale emission is filtered out by the Herschel data reduction process. In this work, we restore this previously missed dust in…

Astrophysics of Galaxies · Physics 2021-11-01 Christopher J. R. Clark , Julia C. Roman-Duval , Karl D. Gordon , Caroline Bot , Matthew W. L. Smith

The Small Magellanic Cloud (SMC) has recently been found to harbour more than two hundred per cent increase of its known cluster population. We provide here with solid evidence that such an unprecedented number of clusters could be largely…

Astrophysics of Galaxies · Physics 2018-06-13 Andrés E. Piatti

We have studied the UV extinction properties along 30 Galactic sightlines using data from the International Ultraviolet Explorer (IUE) archive that have never been previously examined. These distant (d > 1 kpc) sightlines were selected to…

Astrophysics · Physics 2009-10-31 Geoffrey C. Clayton , Karl D. Gordon , Michael J. Wolff

The proximity of the Large and Small Magellanic Clouds (LMC and SMC) provides the opportunity to study the impact of dwarf-dwarf interactions on their mass assembly with a unique level of detail. To this end, we analyze two-filter broadband…

A solution is presented for the past motions of the Magellanic Clouds, the Milky Way galaxy, and M31, fitted to the measured velocities of the Clouds and M31, under some simplifying assumptions. The galaxies are modeled as isolated bodies…

Cosmology and Nongalactic Astrophysics · Physics 2009-07-31 P. J. E. Peebles

Previous studies on astrophysical dark matter (DM) constraints have all assumed that the Milky Way's (MW) DM halo can be modelled in isolation. However, recent work suggests that the MW's largest dwarf satellite, the Large Magellanic Cloud…

High Energy Astrophysical Phenomena · Physics 2023-01-19 Christopher Eckner , Francesca Calore , Denis Erkal , Sophia Lilleengen , Michael S. Petersen

The chemical abundances of a galaxy's metal-poor stellar population can be used to investigate the earliest stages of its formation and chemical evolution. The Magellanic Clouds are the most massive of the Milky Way's satellite galaxies and…

Astrophysics of Galaxies · Physics 2021-11-17 Henrique Reggiani , Kevin C. Schlaufman , Andrew R. Casey , Joshua D. Simon , Alexander P. Ji

We report on the astrophysical properties of a sample of star clusters in the Small Magellanic Cloud (SMC). They have been selected with the aim of looking for the connection between their ages, heliocentric distances and metallicities with…

Astrophysics of Galaxies · Physics 2025-03-12 Denis M. F. Illesca , Andrés E. Piatti , Matías Chiarpotti , Roberto Butrón

We perform a statistical clustering analysis of upper main-sequence stars in the Large Magellanic Cloud (LMC) using data from the Visible and Infrared Survey Telescope for Astronomy survey of the Magellanic Clouds. We map over 2500 young…

The Large Magellanic Cloud (LMC) is the Milky Way's most massive satellite galaxy, which only recently (~2 billion years ago) fell into our Galaxy. Since stellar atmospheres preserve their natal cloud's composition, the LMC's recent infall…

Recent observations in the 21cm line with the Green Bank Telescope have changed our view of the neutral interstellar medium (ISM) in several ways. The new data show that in the inner parts of the Milky Way the disk-halo interface is…

Astrophysics · Physics 2015-06-24 Felix J. Lockman

In this paper we report a clustering analysis of upper main-sequence stars in the Small Magellanic Cloud, using data from the VMC survey (the VISTA near-infrared YJKs survey of the Magellanic system). Young stellar structures are identified…

We establish the connection between the Magellanic Clouds (MCs) and the dwarf galaxy candidates discovered in the Dark Energy Survey (DES) by building a dynamical model of the MC satellite populations, based on an extensive suite of…

Astrophysics of Galaxies · Physics 2016-06-15 Prashin Jethwa , Denis Erkal , Vasily Belokurov

The nature, composition, abundance, and size distribution of dust in galaxies is determined by the rate at which it is created in the different stellar sources and destroyed by interstellar shocks. Because of their extensive wavelength…

Astrophysics of Galaxies · Physics 2015-06-23 Tea Temim , Eli Dwek , Kirill Tchernyshyov , Martha L. Boyer , Margaret Meixner , Christa Gall , Julia Roman-Duval

We present results for an up-to-date uncatalogued star cluster projected towards the Eastern side of the Large Magellanic Cloud (LMC) outer disc. The new object was discovered from a search of loose star cluster in the Magellanic Clouds'…

Astrophysics of Galaxies · Physics 2016-04-20 Andrés E. Piatti

We use a semi-analytic model of halo formation to study the dynamical history of giant field galaxies like the Milky Way. We find that in a concordance LCDM cosmology, most isolated disk galaxies have remained undisturbed for 8-10 Gyr, such…

Astrophysics · Physics 2009-11-07 James E. Taylor , Arif Babul

Disk galaxies are common in our universe and this is a source of concern for hierarchical formation models like LCDM. Here we investigate this issue as motivated by raw merger statistics derived for galaxy-size dark matter halos from LCDM…

Astrophysics · Physics 2015-05-13 James S. Bullock , Kyle R. Stewart , Chris W. Purcell

The Galaxy's population of High Velocity Clouds (HVCs) may include a subpopulation that is confined by dark matter minihalos and falling toward the Galactic disk. We present the first magnetohydrodynamic simulational study of dark…

Astrophysics of Galaxies · Physics 2016-01-13 Jason Galyardt , Robin L. Shelton