ALPINE-CRISTAL-JWST调查：JWST/IFU光学观测用于z=4-6的18个主序星系
The ALPINE-CRISTAL-JWST Survey: JWST/IFU Optical Observations for 18 Main-Sequence Galaxies at z=4-6
AI总结：
ALPINE-CRISTAL-JWST调查利用JWST/IFU观测18个z=4-6的主序星系，研究其恒星形成、化学性质及气体库，发现部分星系具有AGN特征。
摘要：
为了全面表征星系的形成和演化，我们需要在解析空间尺度上观测它们的恒星、气体和尘埃。我们提出了ALPINE-CRISTAL-JWST调查，该调查结合了哈勃空间望远镜、JWST和ALMA对18个代表性的主序星系（z=4-6，log(M/$M_\odot$) > 9.5）的kpc解析成像和光谱观测，以研究它们的恒星形成、化学特性以及扩展气体库。通过在1-2kpc尺度上解析电离气体、分子气体、恒星和尘埃的共空间测量，使这一样本成为研究z≈5时期星系形成和演化的重要基准样本，连接再电离时期与宇宙正午时期。本文概述了调查目标和样本选择，并介绍了18个星系可用数据的总结。此外，我们测量了空间积分量（如整体气体金属度），测试了不同的恒星形成率指标，并量化了Hα晕的存在。我们的目标星系相对较富金属（10-70%太阳），补充了低恒星质量JWST样本，并且不同恒星形成指标之间有广泛的共识。一个星系基于其发射线比值显示出活跃星系核（AGN）的特征。六个星系显示出宽Hα发射，提示I型AGN候选者。最后，我们展望了未来论文中将通过这一独特样本进行的激动人心的科学研究。
英文摘要：
To fully characterize the formation and evolution of galaxies, we need to observe their stars, gas, and dust on resolved spatial scales. We present the ALPINE-CRISTAL-JWST survey, which combines kpc-resolved imaging and spectroscopy from HST, JWST, and ALMA for 18 representative main-sequence galaxies at z=4-6 and log(M/$M_\odot$) > 9.5 to study their star formation, chemical properties, and extended gas reservoirs. The co-spatial measurements resolving the ionized gas, molecular gas, stars, and dust on 1-2 kpc scales make this a unique benchmark sample for the study of galaxy formation and evolution at $z\sim5$, connecting the Epoch of Reionization with the cosmic noon. In this paper, we outline the survey goals and sample selection, and present a summary of the available data for the 18 galaxies. In addition, we measure spatially integrated quantities (such as global gas metallicity), test different star formation rate indicators, and quantify the presence of H$α$ halos. Our targeted galaxies are relatively metal rich (10-70% solar), complementary to JWST samples at lower stellar mass, and there is broad agreement between different star formation indicators. One galaxy has the signature of an active galactic nuclei (AGN) based on its emission line ratios. Six show broad H$α$~emission suggesting type 1 AGN candidates. We conclude with an outlook on the exciting science that will be pursued with this unique sample in forthcoming papers.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
