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An Interaction of a Magellanic Leading Arm High Velocity Cloud with the Milky Way Disk

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arxiv 0712.2267 v1 pith:EYAZIRJI submitted 2007-12-14 astro-ph

classification astro-ph
keywords galacticleadingcloudinteractionmagellaniccrossesdatadisk
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abstract

The Leading Arm of the Magellanic System is a tidally formed HI feature extending $\sim 60\arcdeg$ from the Magellanic Clouds ahead of their direction of motion. Using atomic hydrogen (HI) data from the Galactic All Sky-Survey (GASS), supplemented with data from the Australia Telescope Compact Array, we have found evidence for an interaction between a cloud in the Leading Arm and the Galactic disk where the Leading Arm crosses the Galactic plane. The interaction occurs at velocities permitted by Galactic rotation, which allows us to derive a kinematic distance to the cloud of 21 kpc, suggesting that the Leading Arm crosses the Galactic Plane at a Galactic radius of $R\approx 17$ kpc.

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Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. MIGHTEE-HI: Environmental effects of cosmic filaments on extragalactic HI detections in the COSMOS and XMM-LSS fields

    astro-ph.GA 2026-08 conditional novelty 6.0 of 10

    Filaments in the cosmic web measurably change how often galaxies are detected in HI, reducing detections in low-density late-type galaxies and enhancing them in massive early-type galaxies.

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