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Motivated by recent studies suggesting that the Large Magellanic Cloud (LMC) could be significantly more massive than previously thought, we explore whether the approximation of an inertial Galactocentric reference frame is still valid in…

Astrophysics of Galaxies · Physics 2016-08-08 Facundo A. Gómez , Gurtina Besla , Daniel D. Carpintero , Álvaro Villalobos , Brian W. O'Shea , Eric F. Bell

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 present analysis of the proper-motion (PM) field of the red clump stars in the Large Magellanic Cloud (LMC) disk using the Gaia Early Data Release 3 catalog. Using a kinematic model based on old stars with 3D velocity measurements, we…

The Magellanic Clouds are nearby dwarf irregular galaxies that represent a unique laboratory for studying galaxy interactions. Their morphology and dynamics have been heavily influenced by their mutual interactions as well as with their…

The rotation curve of the Large Magellanic Cloud, which we have derived from high-resolution HI position-velocity diagrams observed by Kim et al (1998), shows a steep central rise and flat rotation with a gradual rise toward the edge. Using…

Astrophysics · Physics 2015-06-24 Yoshiaki Sofue

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 review the recent theoretical and observational developments concerning the interaction of the Large Magellanic Cloud (LMC) with the Milky Way and its neighbourhood. An emerging picture is that the LMC is a fairly massive companion…

Astrophysics of Galaxies · Physics 2023-04-19 Eugene Vasiliev

Observations with the Wisconsin H-alpha Mapper (WHAM) reveal a large, diffuse ionized halo that surrounds the Small Magellanic Cloud (SMC). We present the first kinematic H-alpha survey of an extended region around the galaxy, from (l,b) =…

Astrophysics of Galaxies · Physics 2020-01-08 Brianna M Smart , Lawrence M Haffner , Kat Barger , Alex Hill , Greg Madsen

[abridged] We describe the first results from the NOAO Outer Limits Survey. The survey consists of deep images of 55 0.6x0.6 degree fields at distances up to 20 degrees from the LMC/SMC, and 10 controls. The fields probe the outer structure…

We obtained spectra of red giants in 15 Small Magellanic Cloud (SMC) clusters in the region of the CaII lines with FORS2 on the Very Large Telescope (VLT). We determined the mean metallicity and radial velocity with mean errors of 0.05 dex…

Solar and Stellar Astrophysics · Physics 2015-06-24 M. C. Parisi , D. Geisler , J. J. Clariá , S. Villanova , N. Marcionni , A. Sarajedini , A. J. Grocholski

We present high-resolution maps of the dust reddening in the Magellanic Clouds (MCs). The maps cover the Large and Small Magellanic Cloud (LMC and SMC) area and have a spatial angular resolution between $\sim$ 26 arcsec and 55 arcmin. Based…

Astrophysics of Galaxies · Physics 2022-01-19 B. -Q. Chen , H. -L. Guo , J. Gao , M. Yang , Y. -L. Liu , B. -W. Jiang

Increasing evidences suggest that the Galactic halo is lumpy on kpc scales due to the accretion of at least a dozen small galaxies (LMC/SMC, Sgr, Fornax etc.). Faint stars in such lumpy structures can significant microlense a background…

Astrophysics · Physics 2009-10-30 HongSheng Zhao

We use the SMASH survey to obtain unprecedented deep photometry reaching down to the oldest main sequence turn-offs in the colour-magnitude diagrams (CMDs) of the Small Magellanic Cloud (SMC) and quantitatively derive its star formation…

The structure and dynamics of the star-forming disk of the Small Magellanic Cloud (SMC) have long confounded us. The SMC is widely used as a prototype for galactic physics at low metallicity, and yet we fundamentally lack an understanding…

Using Blue Horizontal Branch stars identified in the Dark Energy Survey Year 1 data, we report the detection of an extended and lumpy stellar debris distribution around the Magellanic Clouds. At the heliocentric distance of the Clouds,…

Astrophysics of Galaxies · Physics 2015-12-23 Vasily Belokurov , Sergey Koposov

We present results from photometric and spectroscopic data obtained with SOAR and Gemini observatory facilities in the field of a recently discovered star cluster. The cluster, projected towards the Eastern side of the outer disc of the…

Astrophysics of Galaxies · Physics 2018-10-17 Andrés E. Piatti , Ricardo Salinas , Eva K. Grebel

We present the chemical composition of 206 red giant branch stars members of the Small Magellanic Cloud (SMC) using optical, high-resolution spectra collected with the multi-object spectrograph FLAMES-GIRAFFE at the ESO Very Large…

Astrophysics of Galaxies · Physics 2023-03-29 A. Mucciarelli , A. Minelli , M. Bellazzini , C. Lardo , D. Romano , L. Origlia , F. R. Ferraro

We offer a new way to look at the Large Magellanic Cloud through stellar mono-abundance and mono-age-mono-abundance maps. These maps are based on $\gtrsim 500\,000$ member stars with photo-spectroscopic [M/H] and age estimates from Gaia DR3…

Astrophysics of Galaxies · Physics 2024-03-14 Neige Frankel , Rene Andrae , Hans-Walter Rix , Joshua Povick , Vedant Chandra

We present the abundance gradients of the Large Magellanic Cloud (LMC) for 25 elemental abundance ratios and their respective temporal evolution as well as age-[X/Fe] trends using 6130 LMC field red giant branch (RGB) stars observed by…