论文标题
Glass-JWST的早期结果。 XVII：建造第一个星系 - 第1章。在5 <z <7处的星形形成历史
Early Results From GLASS-JWST. XVII: Building the First Galaxies -- Chapter 1. Star Formation Histories at 5<z < 7
论文作者
论文摘要
JWST对高红移星系的观察用于测量其恒星形成历史 - 最早的星系中恒星质量的积累。在这里，我们使用新型的分析程序SEDZ*，比较带有红移5 <Z <7的星系的近红外光谱能量分布，以从Z = 12中进化而成的恒星种群模板的组合。我们利用了7个宽带中的Nircam Imaging在覆盖1-5 mu M的7个宽带中的Nircam Imaging，以供玻璃 - JWST-JWST-sprognation和Seelder of Seelders seldere starefore STER starefore starefore starefore selde and seled seld sepind starvey seled seld stoct in seld sepinds*模范星系。在这片镜头中，我们发现了各种历史，从5 <z <12的长长，连续的恒星形成到短而浓烈的星爆 - 有时会重复，最常见的是，持续〜0.5 Myr的连续大量积累，可能是当今典型的M* Galaxies的种子。
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.
