Early Results From GLASS-JWST  XVII: Building the First Galaxies -- Chapter 1  Star Formation Histories at 5<z < 7 by A. Dressler et al.  on Monday 28 November
JWST observations of high redshift galaxies are used to measure their star
formation histories - the buildup of stellar mass in the earliest galaxies.
Here we use a novel analysis program, SEDz*, to compare near-IR spectral energy
distributions for galaxies with redshifts 5 < z < 7 to combinations of stellar
population templates evolved from z = 12. We exploit NIRCam imaging in 7 wide
bands covering 1-5 mu m, taken in the context of the GLASS-JWST-ERS program,
and use SEDz* to solve for well-constrained star formation histories for 24
exemplary galaxies. In this first look we find a variety of histories, from
long, continuous star formation over 5 < z < 12 to short but intense starbursts
- sometimes repeating, and, most commonly, contiguous mass buildup lasting ~
0.5 Myr,possibly the seeds of today's typical, M* galaxies.
arXiv: http://arxiv.org/abs/http://arxiv.org/abs/2208.04292v3

Early Results From GLASS-JWST XVII: Building the First Galaxies -- Chapter 1 Star Formation Histories at 5<z < 7 by A. Dressler et al. on Monday 28 November JWST observations of high redshift galaxies are used to measure their star formation histories - the buildup of stellar mass in the earliest galaxies. Here we use a novel analysis program, SEDz*, to compare near-IR spectral energy distributions for galaxies with redshifts 5 < z < 7 to combinations of stellar population templates evolved from z = 12. We exploit NIRCam imaging in 7 wide bands covering 1-5 mu m, taken in the context of the GLASS-JWST-ERS program, and use SEDz* to solve for well-constrained star formation histories for 24 exemplary galaxies. In this first look we find a variety of histories, from long, continuous star formation over 5 < z < 12 to short but intense starbursts - sometimes repeating, and, most commonly, contiguous mass buildup lasting ~ 0.5 Myr,possibly the seeds of today's typical, M* galaxies. arXiv: http://arxiv.org/abs/http://arxiv.org/abs/2208.04292v3

Early Results From GLASS-JWST  XVII: Building the First Galaxies -- Chapter 1  Star Formation Histories at 5

Early Results From GLASS-JWST  XVII: Building the First Galaxies -- Chapter 1  Star Formation Histories at 5<z < 7

Daily Astro papers on the arXiv in astro-ph.GA.

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Early Results From GLASS-JWST XVII: Building the First Galaxies -- Chapter 1 Star Formation Histories at 5<z < 7

Early Results From GLASS-JWST XVII: Building the First Galaxies -- Chapter 1 Star Formation Histories at 5<z < 7