Past Event

How many quiescent galaxies are there at 3<z<4?

December 21, 2022
4:00 PM - 4:30 PM
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Pupin 1402

Seminar by Karl Glazebrook, Swinburne University

In the last 5 years the discovery of a population of massive quiescent galaxies as early in the Universe as z~4 has generated considerable excitement. These have stellar masses of ~1011 Msun, little or no star formation and ultra compact early type morphologies. Their abundance has been challenging for models of early galaxy formation. However, even the deepest ground-based observations have only been able to obtain spectra for the brightest ones. I will report on the first JWST NIRSPEC MSA observations of similarly massive candidate quiescent galaxies, which so far have eluded spectroscopic confirmation.

Host: Kartheik Iyer