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相关论文: The many streams of the Magellanic Stream

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We present new simulations of the formation of the Magellanic Stream based on an updated first-passage interaction history for the Magellanic Clouds, including both the Galactic and Magellanic Coronae and a live dark matter halo for the…

星系天体物理 · 物理学 2021-11-24 Scott Lucchini , Elena D'Onghia , Andrew J. Fox

The Magellanic Clouds are surrounded by an extended network of gaseous structures. Chief among these is the Magellanic Stream, an interwoven tail of filaments trailing the Clouds in their orbit around the Milky Way. When considered in…

星系天体物理 · 物理学 2016-10-05 Elena D'Onghia , Andrew J. Fox

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…

星系天体物理 · 物理学 2015-11-11 Thor Tepper-Garcia , Joss Bland-Hawthorn , Ralph S. Sutherland

We use high resolution N-Body/SPH simulations to study the hydro-dynamical and gravitational interaction between the Large Magellanic Cloud and the Milky Way. We model the dark and hot extended halo components as well as the stellar/gaseous…

天体物理学 · 物理学 2007-05-23 C. Mastropietro , B. Moore , L. Mayer , J. Stadel , J. Wadsley

We study the effect of drag induced by the Galactic hot halo on the two neutral hydrogen (HI) cloud complexes associated with the Large and Small Magellanic Clouds: the Magellanic Stream (MS) and the Leading Arm (LA). In particular, we…

星系天体物理 · 物理学 2015-05-27 Jonathan Diaz , Kenji Bekki

We present a new technique to identify associations of HI emission in the Magellanic Stream (MS) and ultraviolet (UV) absorbers from 92 QSO sight lines near the MS. We quantify the level of associations of individual HI elements to the main…

星系天体物理 · 物理学 2024-02-15 Doyeon A. Kim , Yong Zheng , Mary E. Putman

The properties of the Magellanic Stream constrain the density of coronal gas in the distant Galactic halo. We show that motion through ambient gas can strongly heat Stream clouds, driving mass loss and causing evaporation. If the ambient…

天体物理学 · 物理学 2016-08-30 C. Murali

Recent observational and theoretical studies on the three-dimensional (3D) space motions of the Large and the Small Magellanic Clouds (LMC and SMC, respectively) have strongly suggested that the latest proper motion measurements of the…

天体物理学 · 物理学 2009-11-13 Kenji Bekki

We studied the impact of the revisited values for the LSR circular velocity of the Milky Way (Reid et al. 2004) on the formation of the Magellanic Stream. The LSR circular velocity was varied within its observational uncertainties as a free…

宇宙学与河外天体物理 · 物理学 2015-05-20 Adam Ruzicka , Christian Theis , Jan Palous

Significant numbers of high-velocity HI clouds (HVCs) have now been detected in H-alpha, with a subset seen in low ionization lines (e.g. [NII]). It was originally hoped that the observed H-alpha strength would provide a distance constraint…

天体物理学 · 物理学 2011-03-10 J. Bland-Hawthorn , M. E. Putman

The first results from the HI Parkes All-Sky Survey (HIPASS) provide a spectacular view of the global HI distribution in the vicinity of the Magellanic Clouds and the southern Milky Way. A 2400 square degree mosaic around the South…

天体物理学 · 物理学 2007-05-23 M. E. Putman , B. K. Gibson , L. Staveley-Smith

The Magellanic Clouds have lost most of their gas during their passage by the Milky Way, a property that has never been successfully modeled. Here we use accurate and mesh-free hydrodynamic simulations to reproduce the Magellanic Stream and…

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…

天体物理学 · 物理学 2014-11-18 Chiara Mastropietro

From H\alpha narrow band observations, we identified three H\alpha emitting regions in the direction of Magellanic Stream IV (MS IV). They consist of three parallel filaments with 2 arcmin width and 6 -- 30 arcmin length at 12 arcmin…

星系天体物理 · 物理学 2012-03-27 Masafumi Yagi , Yutaka Komiyama , Michitoshi Yoshida

The Magellanic Stream is sculpted by its infall through the Milky Way's circumgalactic medium, but the rates and directions of mass, momentum, and energy exchange through the Stream-halo interface are relative unknowns critical for…

星系天体物理 · 物理学 2022-07-20 Chad Bustard , Max Gronke

The Magellanic Stream, a gaseous tail that trails behind the Magellanic Clouds, could replenish the Milky Way with a tremendous amount of gas if it reaches the Galactic disk before it evaporates into the halo. To determine how the…

The Magellanic Stream is unique to sample the MW potential from ~50 kpc to 300 kpc, and is also unique in constraining the LMC mass, an increasingly important question for the Local Group/Milky Way modeling. Here we compare strengths and…

星系天体物理 · 物理学 2026-01-14 Jianling Wang , Francois Hammer , Yanbin Yang , Maria-Rosa L. Cioni

Dynamic interactions between the two Magellanic Clouds have flung large quantities of gas into the halo of the Milky Way, creating the Magellanic Stream, the Magellanic Bridge, and the Leading Arm (collectively referred to as the Magellanic…

Stellar streams are excellent probes of the underlying gravitational potential in which they evolve. In this work, we fit dynamical models to five streams in the Southern Galactic hemisphere, combining observations from the Southern Stellar…

A suite of high-resolution N-body simulations of the Magellanic Clouds -- Milky Way system are presented and compared directly with newly available data from the HI Parkes All-Sky Survey (HIPASS). We show that the interaction between Small…

天体物理学 · 物理学 2008-11-26 Tim W. Connors , Daisuke Kawata , Brad K. Gibson