Cold HI ejected into the Magellanic Stream

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Cold HI ejected into the Magellanic Stream

We report the direct detection of cold HI gas in a cloud ejected from the Small Magellanic Cloud (SMC) towards the Magellanic Stream. The cloud is part of a fragmented shell of HI gas on the outskirts of the SMC. This is the second direct detection of cold HI associated with the Magellanic Stream using absorption. The cold gas was detected using 2... more

Astronomical and Space Sciences not elsewhere classified

24 May 2019

02 Jun 2019

CSIRO Enquiries
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interstellar medium in and around the Milky Way interstellar medium of other galaxies Magellanic Stream SMC Magellanic Clouds galaxies: ISM ISM: clouds radio lines: ISM


Cold HI ejected into the Magellanic Stream


Emission data is sourced from McClure-Griffiths N. M., et al., 2018, Nature Astronomy, 2, 901

Creative Commons Attribution 4.0 International Licence

CSIRO (Australia), Australian National University (Australia)

Dempsey, James; Mcclure-Griffiths, Naomi; Jameson, Katherine (2020): Cold HI ejected into the Magellanic Stream. v1. CSIRO. Data Collection.

All Rights (including copyright) CSIRO, Australian National University 2020.

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About this Project

Australia Telescope National Facility

C3297 - Follow-up observations of HI absorption near the SMC detected by ASKAP

How does dense, cold gas form in the outskirts of galaxies where the gas thins out? In this project we will explore that question, following up on hints of cold neutral hydrogen which showed up in early results from the new ASKAP telescope. We will examine locations surrounding the Small Magellanic Cloud where gas is in the process of being strippe... more


Australia Telescope Compact Array

James Dempsey

Naomi Mcclure-Griffiths

Katherine Jameson