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SUMMARY:Bridging the Gap in the New Era of Star Formation
DTSTART;VALUE=DATE-TIME:20261028T175500Z
DTEND;VALUE=DATE-TIME:20261028T180500Z
DTSTAMP;VALUE=DATE-TIME:20261025T124234Z
UID:indico-contribution-3633@nyx.physics.mcgill.ca
DESCRIPTION:Speakers: Jaiden Peltonen (University of Alberta)\nWith the ad
 vent of JWST imaging in the Local Group\, young stellar objects (YSOs) are
  being observed in a broader range of environments than ever before\, whic
 h will revolutionize our understanding of star formation if their properti
 es can be modelled accurately. We present a new approach to characterizing
  YSO populations by applying the technique of population synthesis origina
 lly developed for older stellar populations (Peltonen et al. 2026). Using 
 the latest YSO radiation transfer and stellar evolution models\, we have d
 eveloped a population synthesis code that can generate YSO populations\, a
 ccounting for details like binaries\, clustering\, extinction\, and stocha
 stic sampling. We used this new code to determine the properties of YSOs i
 n the recent JWST images of NGC 604 within M33 and previous Spitzer studie
 s of the LMC. This approach allows us to measure the star formation rate i
 n extragalactic systems directly from YSOs instead of relying on tracers f
 rom massive stars (Halpha\, photospheric emission). With this powerful tec
 hnique\, we can also turn to local clouds in the Spitzer Extended Solar Ne
 ighborhood Archive (SESNA). We present preliminary results to constrain th
 e star formation histories in the SESNA molecular clouds. Ultimately\, thi
 s population synthesis framework will allow us to evaluate the current sta
 r formation properties in any region with an observed YSO population and a
 llow us to directly connect the Milky Way star formation properties to tho
 se of extragalactic systems.\n\nhttps://nyx.physics.mcgill.ca/event/587/co
 ntributions/3633/
LOCATION:Online 
URL:https://nyx.physics.mcgill.ca/event/587/contributions/3633/
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