5-25 μm Galaxy Number Counts from Deep JWST Data
arxiv(2024)
摘要
Galaxy number counts probe the evolution of galaxies over cosmic time, and
serve as a valuable comparison point to theoretical models of galaxy formation.
We present new galaxy number counts in eight photometric bands between 5 and 25
μm from the Systematic Mid-infrared Instrument Legacy Extragalactic Survey
(SMILES) and the JWST Advanced Deep Extragalactic Survey (JADES) deep MIRI
parallel, extending to unprecedented depth. By combining our new MIRI counts
with existing data from Spitzer and AKARI, we achieve counts across 3-5 orders
of magnitude in flux in all MIRI bands. Our counts diverge from predictions
from recent semi-analytical models of galaxy formation, likely owing to their
treatment of mid-infrared aromatic features. Finally, we integrate our combined
JWST-Spitzer counts at 8 and 24 μm to measure the cosmic infrared
background (CIB) light at these wavelengths; our measured CIB fluxes are
consistent with those from previous mid-infrared surveys, but larger than
predicted by models based on TeV blazar data.
更多查看译文
AI 理解论文
溯源树
样例
![](https://originalfileserver.aminer.cn/sys/aminer/pubs/mrt_preview.jpeg)
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要