Canadian Investigations of the Interstellar Medium
Alex S. Hill (UBC), Jan Cami (Western University), Laura Fissel, (Queen's University), Tyler Foster (Brandon U), Gilles Joncas (U Laval),, Lewis Knee (NRC/HAA), Roland Kothes (NRC/HAA), Tom Landecker (NRC/HAA), Tim, Robishaw (NRC/HAA), Erik Rosolowsky (U Alberta)

TL;DR
Canadian astronomers have significantly advanced interstellar medium research through diverse observations, characterizations, and upcoming technological upgrades, enhancing understanding of galactic evolution and small-scale structures.
Contribution
The paper highlights Canada's leading role in ISM science, detailing past achievements and proposing future observational and technological developments.
Findings
Identification of small-scale structures in H I emission
Characterization of dust with Planck and balloon telescopes
Use of pulsar scintillometry to measure ISM structure at sub-AU scales
Abstract
The interstellar medium mediates galactic evolution as the reservoir of material for future star formation and the repository of energy and matter output by stellar processes. Canadians have played leading roles in ISM science for decades. The Canadian Galactic Plane Survey identified a wealth of small-scale structure in H I emission as well as self-absorption and in the structure of polarized emission. These observations demonstrated that no phase of the ISM, including the transition from atomic gas to star formation, can be understood in isolation. Canadians have also played leading roles in the characterization of dust with Planck and balloon-borne telescopes. Canadians have also used pulsar scintillometry to measure structure in the ISM at the smallest scales, below 1 AU. The 2020s offer many opportunities for ISM science in Canada. A major but cost-effective upgrade to the…
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Taxonomy
TopicsAstrophysics and Star Formation Studies · Particle accelerators and beam dynamics · Scientific Research and Discoveries
