ASTRODEBATA / Victoria Strait: A low-mass galaxy in a star forming lull at z ∼ 5

Date of publication: 2. 9. 2024

Astro-debate

Wednesday

September

Time:

11:00 - 12:00

Location:

predavalnica F6, Jadranska 19, FMF

V sredo, 4. septembra, bo ob 11. uri Astrodebata v predavalnici F6. O manj masivnih galaksijah v zgodnjem vesolju bo predavala dr. Victoria Strait (Cosmic Dawn Center, Copenhagen). Predavanje bo v angleškem jeziku! Vabljeni_e!

A low-mass galaxy in a star forming lull at z ∼ 5

Dr. Victoria Strait
Cosmic Dawn Center, Copenhagen

While the cessation of star formation in high-redshift galaxies has been extensively studied, its underlying mechanisms remain elusive. Most research to date has concentrated on the most massive galaxies (log(M∗/M⊙) > 11) at redshifts below z ∼ 4, leaving a gap in our understanding of lower-mass systems in earlier epochs. I will report findings of an investigation on the nature of a low mass, high redshift galaxy: MACS0417-z5BBG. This intriguing galaxy, situated behind cluster MACS0417 at z = 5.201 ± 0.003 with a stellar mass of log(M∗/M⊙) ∼ 8, offers a unique glimpse into the early stages of galactic evolution. I will also discuss some updates from the Cosmic Dawn Center and the CAnadian NIRISS Unbiased Cluster Survey (CANUCS) team.