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Related papers: Stellar streams around the Magellanic Clouds in 4D

200 papers

An all high-latitude sky survey for cool carbon giant stars in the Galactic halo has revealed 75 such stars, of which the majority are new detections. Of these, more than half are clustered on a Great Circle on the sky which intersects the…

Astrophysics · Physics 2009-10-31 Rodrigo Ibata , Geraint F. Lewis , Michael Irwin , Edward Totten , Thomas Quinn

The Galaxy Evolution Exporer (GALEX) has performed unprecedented imaging surveys of the Magellanic Clouds (MC) and their surrounding areas including the Magellanic Bridge (MB) in near-UV (NUV, 1771-2831\AA) and far-UV (FUV, 1344-1786\AA)…

Astrophysics of Galaxies · Physics 2014-01-29 Raymond Simons , David Thilker , Luciana Bianchi , Ted Wyder

Recent discoveries have shown that a population of hypervelocity stars (HVSs) originate from the Large Magellanic Cloud (LMC). We use three such HVSs as dynamical tracers to constrain the past orbit of the LMC. Since each star was ejected…

Astrophysics of Galaxies · Physics 2026-04-07 Scott Lucchini , Jiwon Jesse Han

We have initiated a survey aimed at locating a nearly complete sample of classical symbiotic stars (SySt) in the Magellanic Clouds. Such a sample is nearly impossible to obtain in the Milky Way, and is essential to constrain the formation,…

Solar and Stellar Astrophysics · Physics 2018-11-19 Krystian Ilkiewicz , Joanna Mikolajewska , Michael M. Shara , Andrzej Udalski , Katarzyna Drozd , Jacqueline K. Faherty

We present the results of fitting a flexible stellar stream density model to a collection of thirteen streams around the Milky Way, using photometric data from DES, DECaLS, and Pan-STARRS. We construct density maps for each stream and…

Astrophysics of Galaxies · Physics 2022-06-22 Jeffrey M. Patrick , Sergey E. Koposov , Matthew G. Walker

We present a Catalog of high proper motion (HPM) stars detected in the foreground of central parts of the Magellanic Clouds. The Catalog contains 2161 objects in the 4.5 square degree area towards the LMC, and 892 HPM stars in the 2.4…

Stellar streams produced from dwarf galaxies provide direct evidence of the hierarchical formation of the Milky Way. Here, we present the first comprehensive study of the "LMS-1" stellar stream, that we detect by searching for wide streams…

Astrophysics of Galaxies · Physics 2021-10-20 Khyati Malhan , Zhen Yuan , Rodrigo Ibata , Anke Arentsen , Michele Bellazzini , Nicolas F. Martin

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 present our spectroscopic program aimed to study some new interesting features recently discovered in the Magellanic Cloud System. These were revealed by the spatial distribution of OB-type candidate stars, selected based on UV, optical…

Astrophysics of Galaxies · Physics 2013-07-23 C. Moni Bidin , D. I. Casetti-Dinescu , R. A. Mendez , T. M. Girard , K. Vieira , V. I. Korchagin , W. F. van Altena

We leverage new high-quality data from Hubble Space Telescope program GO-14164 to explore the variation in horizontal branch morphology among globular clusters in the Large Magellanic Cloud (LMC). Our new observations lead to photometry…

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

We present an overview of, and first science results from, the Magellanic Edges Survey (MagES), an ongoing spectroscopic survey mapping the kinematics of red clump and red giant branch stars in the highly substructured periphery of the…

Astrophysics of Galaxies · Physics 2020-07-22 L. R. Cullinane , A. D. Mackey , G. S. Da Costa , S. E. Koposov , V. Belokurov , D. Erkal , A. Koch , A. Kunder , D. M. Nataf

The Magellanic Stream (MS) is a well-resolved gaseous tail originating from the Magellanic Clouds. Studies of its physical properties and chemical composition are needed to understand its role in Galactic evolution. We investigate the…

Astrophysics of Galaxies · Physics 2015-06-23 Nimisha Kumari , Andrew J. Fox , Jason Tumlinson , Christopher Thom , Tobias Westmeier , Justin Ely

The Large Magellanic Cloud (LMC) experiences disruption from tidal and ram-pressure forces as it travels through the halo of the Milky Way. In this project, we combine radio emission-line observations from the GASS and GASKAP surveys with…

High-velocity clouds (HVCs) are multi-phase gas structures whose velocities (|v_LSR|>100 km/s) are too high to be explained by Galactic disk rotation. While large HVCs are well characterized, compact and small HVCs (with HI angular sizes of…

To explore the origin of high-velocity gas in the direction of the Large Magellanic Cloud (LMC) we analyze absorption lines in the ultraviolet spectrum of a Galactic halo star that is located in front of the LMC at d=9.2 kpc distance. We…

Astrophysics of Galaxies · Physics 2015-11-18 P. Richter , K. S. de Boer , K. Werner , T. Rauch

We present the results of 0.1-pc-scale observations in 250 GHz and 350GHz towards a newly-discovered hot molecular core in a nearby low-metallicity galaxy, the Large Magellanic Cloud (LMC), with the Atacama Large Millimeter/submillimeter…

Context: The Large Magellanic Cloud (LMC) is to date the only normal external galaxy that has been detected in high-energy gamma rays. High-energy gamma rays trace particle acceleration processes and gamma-ray observations allow the nature…

High Energy Astrophysical Phenomena · Physics 2016-04-13 LAT collaboration , A. A. Abdo

We present radial velocities for 2045 stars in the Small Magellanic Cloud (SMC), obtained from the 2dF survey by Evans et al. (2004). The great majority of these stars are of OBA type, tracing the dynamics of the young stellar population.…

Astrophysics · Physics 2014-11-18 Christopher J. Evans , Ian D. Howarth

Stellar halo substructures were identified using statistical photometric parallax of blue main sequence turnoff stars from fourteen Sloan Digital Sky Survey stripes in the north Galactic cap. Four structures are consistent with previous…

Astrophysics of Galaxies · Physics 2018-10-31 Jake Weiss , Heidi Jo Newberg , Travis Desell