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SUMMARY:From embedded Massive Young Stellar Objects to Young Star Clusters
DTSTART:20260601T100000Z
DTEND:20260601T120000Z
DTSTAMP:20260622T093600Z
UID:indico-event-59@indico.iparcos.ucm.es
DESCRIPTION:Speakers: Jimena Rodriguez (Space Telescope Science Institute)
 \n\nThe physics of star cluster formation is highly multiscale\, with nasc
 ent star clusters exhibiting widely varying physical conditions on scales 
 <1 to 10s of pc. The smallest scales can only be reached in the Milky Way 
 and Magellanic Clouds\, but it is important to connect what we learn there
  to the much larger sample sizes and range of physical conditions in nearb
 y galaxies\, where the resolution is lower.  \nIn this talk\, I will pres
 ent two projects that help bridge these scales to better understand star a
 nd cluster formation: First\, we identify massive young stellar object (MY
 SO) candidates in four nearby galaxies (1–5 Mpc) using JWST NIRCam and M
 IRI imaging. We define mid-infrared color selection criteria and assess th
 e impact of spatial resolution. We find that while the color selection rem
 ains stable with distance\, blending and surface-brightness effects signif
 icantly bias samples at larger distances. Spatial resolution also affects 
 the interpretation of mid-infrared emission: clustering increases the frac
 tion of emission attributed to compact sources in active regions\, while b
 lending into diffuse emission dominates in more quiescent environments. Th
 is analysis establishes a practical limit of ~3 Mpc for studying individua
 l MYSOs with JWST.\nSecond\, in the local Universe\, we are studying the k
 inematics of young star clusters\, specifically the low-metallicity cluste
 r NGC 602 in the Small Magellanic Cloud using VLT/MUSE spectroscopy combin
 ed with HST and JWST imaging. We identify cluster members and find evidenc
 e for multiple stellar velocity components\, likely reflecting the cluster
 ’s formation through cloud–cloud interactions. The observed stellar ki
 nematics place constraints on the cluster’s dynamical state and dispersa
 l timescale.\n \n\n\nhttps://indico.iparcos.ucm.es/event/59/
LOCATION:Seminario 3.2 (Facultad de Ciencias Físicas)
URL:https://indico.iparcos.ucm.es/event/59/
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