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SUMMARY:Bridging the gap between Milky Way and extragalactic star formatio
 n studies
DTSTART;VALUE=DATE-TIME:20261028T172500Z
DTEND;VALUE=DATE-TIME:20261028T173500Z
DTSTAMP;VALUE=DATE-TIME:20261029T010319Z
UID:indico-contribution-3651@nyx.physics.mcgill.ca
DESCRIPTION:Speakers: Hannah Christie (University of Alberta)\nMeasurement
 s of massive star formation from Galactic and extragalactic cloud-scale ob
 servations produce conflicting results. Theory predicts that gas surface d
 ensity\, velocity dispersion\, virial parameter\, and gravitational freefa
 ll time should play a key role in setting the timescale for star formation
 . Milky Way observations support this prediction. In extragalactic systems
 \, observations find weak\, or even anti-correlations\, with predictions f
 rom theory. There remains\, however\, a significant gap between the scales
  probed in extragalactic surveys (50-150pc) and the resolved cloud observa
 tions from Milky Way studies (~10pc) which could account for this tension.
  This work addresses the spatial gap between these studies using new ALMA 
 12CO(2–1) and 12CO(1-0) observations of M33. The resolution of these dat
 a (~10pc) matches the spatial scales resolved in Milky Way studies allowin
 g for direct comparisons to be made.  We measure star formation rates usin
 g the early embedded phase of massive star formation\, enabled by JWST obs
 ervations. Using these data\, we find no strong correlation between the st
 ar formation efficiency and molecular gas properties in resolved extragala
 ctic molecular clouds. Our results find that the tension between Milky Way
  and extragalactic observations cannot be attributed to a gap in spatial s
 cales. Future work will extend our study of resolved cloud observations to
  local volume galaxies across a range of galactic environments.\n\nhttps:/
 /nyx.physics.mcgill.ca/event/587/contributions/3651/
LOCATION:Online 
URL:https://nyx.physics.mcgill.ca/event/587/contributions/3651/
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