标题： 从詹姆斯韦伯太空望远镜（JWST）中红外源计数推断的宇宙恒星形成历史和黑洞吸积历史 显示英文标题

标题： Cosmic star-formation history and black hole accretion history inferred from the JWST mid-infrared source counts

摘要： 随着詹姆斯韦布空间望远镜（JWST）的到来，在中红外（MIR）波段开展了源计数研究，其灵敏度比前一代红外（IR）望远镜在MIR波段的观测结果弱几十倍。在这项工作中，我们旨在解释JWST的源计数，并限制宇宙恒星形成历史（CSFH）和黑洞吸积历史（BHAH）。我们使用星系局部光度函数（LLF）的逆向演化来重现从亚微焦耳到几十毫焦耳的JWST MIR波段的观测源计数。MIR波段的LLF形状通过五种代表性星系类型（恒星形成星系、星暴、复合型、AGN类型2和类型1）的光谱能量分布（SED）模型模板确定。通过同时拟合我们的模型到六个MIR波段的所有源计数以及之前的结果，我们确定了五个星系类型的MIR LF的最佳演化，并随后估算CSFH和BHAH。多亏了JWST，我们的估算基于几倍更暗的MIR源，这些源在之前的研究中仅仅是一种外推假设。 显示英文摘要

摘要： With the advent of the James Webb Space Telescope (JWST), extra-galactic source count studies were conducted down to sub-microJy in the mid-infrared (MIR), which is several tens of times fainter than what the previous-generation infrared (IR) telescopes achieved in the MIR. In this work, we aim to interpret the JWST source counts and constrain cosmic star-formation history (CSFH) and black hole accretion history (BHAH). We employ the backward evolution of local luminosity functions (LLFs) of galaxies to reproduce the observed source counts from sub-microJy to a few tens of mJy in the MIR bands of the JWST. The shapes of the LLFs at the MIR bands are determined using the model templates of the spectral energy distributions (SEDs) for five representative galaxy types (star-forming galaxies, starbursts, composite, AGN type 2 and 1). By simultaneously fitting our model to all the source counts in the six MIR bands, along with the previous results, we determine the best-fit evolutions of MIR LFs for each of the five galaxy types, and subsequently estimate the CSFH and BHAH. Thanks to the JWST, our estimates are based on several tens of times fainter MIR sources, the existence of which was merely an extrapolation in previous studies.