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Related papers: The Magellanic Stream and Debris Clouds

200 papers

We present a panoramic map of the stellar streams of the Milky Way based upon astrometric and photometric measurements from the Gaia DR2 catalogue. In this first contribution, we concentrate on the halo at heliocentric distances beyond 5…

Astrophysics of Galaxies · Physics 2018-09-19 Khyati Malhan , Rodrigo A. Ibata , Nicolas F. Martin

I report the discovery of a stellar stream (Sutlej) using Gaia DR3 proper motions and XP metallicities located ~15 degrees north of the Small Magellanic Cloud (SMC). The stream is composed of two parallel linear components ("branches")…

Astrophysics of Galaxies · Physics 2023-08-11 David L. Nidever

We derive structural parameters and evidence for extended tidal debris from star count and preliminary standard candle analyses of the Large Magellanic Cloud based on Two Micron All Sky Survey (2MASS) data. The full-sky coverage and low…

Astrophysics · Physics 2010-01-07 Martin D. Weinberg , Sergei Nikolaev

Tidally disrupted globular cluster streams are usually observed, and therefore perceived, as narrow, linear and one-dimensional structures in the 6D phase-space. Here we show that the GD-1 stellar stream ($\approx$ 30 pc wide), which is the…

Astrophysics of Galaxies · Physics 2019-08-23 Khyati Malhan , Rodrigo A. Ibata , Raymond G. Carlberg , Monica Valluri , Katherine Freese

We have used the latest HI observations of the Small Magellanic Cloud (SMC), obtained with the Australia Telescope Compact Array and the Parkes telescope, to re-examine the kinematics of this dwarf, irregular galaxy. A large velocity…

Astrophysics · Physics 2009-11-10 S. Stanimirovic , L. Staveley-Smith , P. Jones

We report the discovery of a substantial stellar overdensity in the periphery of the Large Magellanic Cloud (LMC), found using public imaging from the first year of the Dark Energy Survey. The structure appears to emanate from the edge of…

Astrophysics of Galaxies · Physics 2016-04-27 Dougal Mackey , Sergey E. Koposov , Denis Erkal , Vasily Belokurov , Gary S. Da Costa , Facundo A. Gómez

We characterize the Magellanic Corona, the warm gaseous halo around the Large Magellanic Cloud (LMC). The Corona is a key ingredient in the formation of the Magellanic Stream (Lucchini et al. 2020, 2021) and has recently been observed in…

Astrophysics of Galaxies · Physics 2024-05-15 Scott Lucchini , Elena D'Onghia , Andrew J. Fox

We present deep Halpha spectroscopy towards several high-velocity clouds (HVCs) which vary in structure from compact (CHVCs) to the Magellanic Stream. The clouds range from being bright (~640 mR) to having upper limits on the order of 30 to…

Astrophysics · Physics 2009-11-10 M. E. Putman , J. Bland-Hawthorn , S. Veilleux , B. K. Gibson , K. C. Freeman , P. R. Maloney

We have imaged the entire Small Magellanic Cloud (SMC), one of the two nearest star-forming dwarf galaxies, in all seven IRAC and MIPS bands. The low mass and low metallicity (1/6 solar) of the SMC make it the best local analog for…

We show that a Magellanic Cloud origin for the warp of the Milky Way can explain most quantitative features of the outer HI layer recently identified by Levine, Blitz & Heiles (2005). We construct a model similar to that of Weinberg (1998)…

Astrophysics · Physics 2009-11-11 Martin D. Weinberg , Leo Blitz

Thin halo star streams originate from the evaporation of globular clusters and therefore provide information about the early epoch globular cluster population. The observed tidal tails from halo globular clusters in the Milky Way are much…

Astrophysics of Galaxies · Physics 2017-03-29 Raymond G. Carlberg

Mergers and tidal interactions between massive galaxies and their dwarf satellites are a fundamental prediction of the Lambda-Cold Dark Matter cosmology. These events are thought to provide important observational diagnostics of nonlinear…

We present a series of chemodynamical simulations of Magellanic-like systems consisting of two interacting, equal-mass dwarf galaxies orbiting a massive host galaxy, including feedback and star formation, tides, and ram pressure. We study…

Astrophysics of Galaxies · Physics 2021-01-27 David Williamson , Hugo Martel

The Magellanic Clouds (MCs) offer an outstanding variety of young stellar associations, in which large samples of low-mass stars (with masses less than 1 solar mass) currently in the act of formation can be resolved and explored…

The Magellanic HI Stream (~2x10^9 Msun [d/55 kpc]^2) encircling the Galaxy at a distance 'd' is arguably the most important tracer of what happens to gas accreting onto a disk galaxy. Recent observations reveal that the Stream's mass is in…

Astrophysics of Galaxies · Physics 2015-11-11 Thor Tepper-Garcia , Joss Bland-Hawthorn , Ralph S. Sutherland

We present a new precision measurement of gas-phase abundances of S, O, N, Si, Fe, P, Al, Ca as well as molecular hydrogen (H_2) in the Leading Arm (region II, LAII) of the Magellanic Stream (MS) towards the Seyfert galaxy NGC 3783. The…

Astrophysics of Galaxies · Physics 2018-10-17 P. Richter , A. J. Fox , B. P. Wakker , J. C. Howk , N. Lehner , K. A. Barger , E. D'Onghia , F. J. Lockman

Cold neutral hydrogen (HI) is a crucial precursor for molecular gas formation and can be studied via HI absorption. This study investigates HI absorption in low column density regions of the Small and Large Magellanic Clouds (SMC and LMC)…

We investigate the present distributions of gas and young stars in the Large and Small Magellanic Clouds (LMC and SMC) based on fully self-consistent numerical simulations of the Clouds for the last ~ 0.8 Gyr. Our principal results, which…

Astrophysics · Physics 2009-11-11 Kenji Bekki , Masashi Chiba

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…

Astrophysics of Galaxies · Physics 2015-06-15 Noelia E. D. Noel , Blair C. Conn , Ricardo Carrera , Justin I. Read , Hans-Walter Rix , Andrew Dolphin

As we strive to understand how galaxies evolve it is crucial that we resolve physical processes and test emerging theories in nearby systems that we can observe in great detail. Our own Galaxy, the Milky Way, and the nearby Magellanic…