Séminaire/Seminar Galaxies |
| « Breaking Early-Universe Galaxies Apart & Putting Them Back Together Again » |
|
Dr. Taylor Hutchison and Dr. Gourav Khullar |
|
This talk will lay out the landscape of spectroscopic studies of lensed galaxies in the JWST era, with complementary foci across two talks.
Across cosmic time, star-forming clumps have served as one of the most fundamental building blocks of galaxies. While mapping galaxy formation mechanisms to higher redshift systems is challenging given cosmic scales and sizes, the marriage of gravitational lensing and space-based telescopes enables us to zoom into sub-kpc regions of individual galaxies at high redshifts, to investigate the variation and magnitude of ISM conditions and more directly locate where star-forming clumps are situated (& where they are not) at scales similar to local studies (~10-100pc). NASA/ESO/CSA’s JWST observatory has shepherded a new era of spatially-resolved spectroscopy that has truly revolutionized the study of star forming and quenched clumps in distant galaxies. Specifically, JWST’s ability to detect continuum in individual high-redshift clumps provides unprecedented constraints on clump ages and masses when combined with JWST and archival HST imaging. Drs Hutchison (NASA Goddard) & Khullar (Univ. of Washington) will share exciting spatially-resolved science currently being done with JWST – showing results from highly-magnified clumpy galaxies across the peak of cosmic star-formation up to the tail end of the reionization era. |
|
jeudi 7 mai 2026 - 11:30 Salle Entresol Daniel Chalonge Institut d'Astrophysique de Paris |
| Page web du séminaire / Seminar's webpage |