English
Related papers

Related papers: The Source of Ionization along the Magellanic Stre…

200 papers

Extending for over 200 degrees across the sky, the Magellanic Stream together with its Leading Arm is the most spectacular example of a gaseous stream in the local Universe. The Stream is an interwoven tail of filaments trailing the…

We show that HI clouds in the Magellanic Clouds are stripped by the ram-pressure due to the halo and disk gases of the Galaxy. Molecular clouds are swept to the edge of the LMC, showing an eccentric distribution. The stripped HI clouds form…

Astrophysics · Physics 2007-05-23 Yoshiaki SOFUE

We present results from neutral hydrogen (HI) observations of the tip of the Magellanic Stream (MS), obtained with the Arecibo telescope as a part of the on-going survey by the Consortium for Galactic studies with the Arecibo L-band Feed…

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…

The Magellanic Stream (MS) is a large tail of neutral and ionized gas originating from tidal and hydrodynamical interactions between the Magellanic Clouds as they orbit the Milky Way (MW). It carries a significant gas reservoir that could…

Astrophysics of Galaxies · Physics 2025-03-28 Sapna Mishra , Andrew J. Fox , J. V. Smoker , Scott Lucchini , Elena D'Onghia

The Magellanic Stream (MS) is a massive and extended tail of multi-phase gas stripped out of the Magellanic Clouds and interacting with the Galactic halo. In this first paper of an ongoing program to study the Stream in absorption, we…

We have obtained high resolution FUSE and HST/STIS echelle observations of the quasar PG 1116+215. The semi-continuous coverage of the ultraviolet spectrum over the wavelength range 916-2800 provides detections of Galactic and high velocity…

Astrophysics · Physics 2009-11-10 Rajib Ganguly , Kenneth R. Sembach , Todd M. Tripp , Blair D. Savage

The Magellanic Stream (MS) has long been known to contain multiple H I strands and corresponding stellar populations are beginning to be discovered. Combining a sample of 17 stars from the H3 ("Hectochelle in the Halo at High Resolution")…

Astrophysics of Galaxies · Physics 2025-02-19 Dennis Zaritsky , Vedant Chandra , Charlie Conroy , Ana Bonaca , Phillip A. Cargile , Rohan P. Naidu

We explore the Magellanic Stream (MS) using a Gaussian decomposition of the HI velocity profiles in the Leiden-Argentine-Bonn (LAB) all-sky HI survey. This decomposition exposes the MS to be composed of two filaments distinct both spatially…

Astrophysics · Physics 2009-06-23 David L. Nidever , Steven R. Majewski , W. Butler Burton

(Abridged) We present an analysis of ionization and metal enrichment in the Magellanic Stream (MS), the nearest gaseous tidal stream, using HST/STIS and FUSE ultraviolet spectroscopy of two background AGN, NGC 7469 and Mrk 335. For NGC…

Astrophysics of Galaxies · Physics 2015-05-19 Andrew J. Fox , Bart P. Wakker , Jonathan V. Smoker , Philipp Richter , Blair D. Savage , Kenneth R. Sembach

The Magellanic Stream, a tidal tail of diffuse gas falling onto the Milky Way, formed by interactions between the Small and Large Magellanic Clouds, is primarily composed of neutral atomic hydrogen (HI). The deficiency of dust and the…

The Magellanic Stream (MS) is a vast gaseous structure in the Milky Way halo, containing most of its mass in ionized form and tracing the interaction between the Large and Small Magellanic Clouds and the Galaxy. Using HST/COS G160M spectra…

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

The Magellanic Stream and the Leading Arm form a massive, filamentary system of gas clouds surrounding the Large and Small Magellanic Clouds. Here we present a new component-level analysis of their ultraviolet (UV) kinematic properties…

Astrophysics of Galaxies · Physics 2020-07-08 Andrew J. Fox , Elaine M. Frazer , Joss Bland-Hawthorn , Bart P. Wakker , Kathleen A. Barger , Philipp Richter

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…

Astrophysics of Galaxies · Physics 2016-10-05 Elena D'Onghia , Andrew J. Fox

Understanding the hydrodynamical processes and conditions at the interface between the Magellanic Stream (MS) and the Galactic halo is critical to understanding the MS and by extension, gaseous tails in other interacting galaxies. These…

Astrophysics of Galaxies · Physics 2009-08-31 Lou Nigra , Snezana Stanimirovic , J. S. Gallagher , Felix J. Lockman , David L. Nidever , Steven R. Majewski

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…

Astrophysics of Galaxies · Physics 2012-03-27 Masafumi Yagi , Yutaka Komiyama , Michitoshi Yoshida

The Leading Arm is a tidal feature that is in front of the Magellanic Clouds on their orbit through the Galaxy's halo. Many physical properties of the Leading Arm, such as its mass and size, are poorly constrained because it has few…

Astrophysics of Galaxies · Physics 2020-04-22 Jacqueline Antwi-Danso , Kathleen A. Barger , L. Matthew Haffner

We review the possible sources of ionizing photons within the Local Group. Throughout most of the LG volume, the cosmic background radiation will dominate, but locally (e.g., within d\sim 100 kpc of the Galactic disk) stellar ionizing…

Astrophysics · Physics 2007-05-23 Philip R. Maloney , J. Bland-Hawthorn

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…

Astrophysics of Galaxies · Physics 2024-02-15 Doyeon A. Kim , Yong Zheng , Mary E. Putman