Janice Lee
Space Telescope Science Inst. (STScI) (Baltimore, Maryland, Etats-Unis d'Amérique)
Amphithéâtre Henri Mineur, Institut d'Astrophysique de Paris
|
| « Decoding Galaxies & Star Formation Feedback with 100,000 Star Clusters: PHANGS-HST & JWST today, the future with HWO » |
|
Janice Lee |
| The PHANGS-HST and JWST Treasury Programs have produced the most extensive inventories to date of optically visible and dust-embedded star clusters across nearby galaxies. A coherent picture is emerging of the earliest phases of cluster evolution, built from complementary studies that consistently point to short dust-clearing timescales (?3 Myr), in agreement with earlier optical studies. Together, these results underscore the central role of early, pre-supernova feedback in regulating the star formation cycle. Drawing on the statistical power of tens of thousands of clusters spanning dozens of galaxies, I will synthesize what PHANGS and related programs have revealed about cluster evolution, feedback, and the use of clusters as “clocks” for timing key phases of star formation. Looking ahead, I will highlight work on the Habitable Worlds Observatory, NASA’s next flagship astrophysics mission after Roman, which will operate as a true “Super-Hubble,” with UV–optical capabilities to transform star cluster studies and a broad range of fields across astrophysics. |
|
vendredi 13 février 2026 - 11:00 Amphithéâtre Henri Mineur, Institut d'Astrophysique de Paris |
| Page web du séminaire / Seminar's webpage |