Modeling the Extragalactic Background Light and the Cosmic Star Formation History
نویسندگان
چکیده
Abstract We present an updated model for the extragalactic background light (EBL) from stars and dust, over wavelengths ?0.1–1000 ? m. This uses accurate theoretical stellar spectra, tracks evolution of star formation, mass density, metallicity, interstellar dust extinction emission in universe with redshift. Dust components are treated self-consistently, absorbed by reradiated infrared as three blackbody components. fit our model, free parameters associated formation rate emission, to a wide variety data: luminosity data galaxy surveys; ? -ray absorption optical depth telescopes. Our results strongly constraint density photon escape fraction out redshift z = 10, about 90% history universe. find result is, some cases, below lower limits on 0 EBL intensity, low- measurements.
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2022
ISSN: ['2041-8213', '2041-8205']
DOI: https://doi.org/10.3847/1538-4357/ac9843