Redshift-evolutionary X-Ray and UV Luminosity Relation of Quasars from Gaussian Copula
نویسندگان
چکیده
Abstract We construct a three-dimensional and redshift-evolutionary X-ray ultraviolet ( L X – UV ) luminosity relation for quasars from the powerful statistic tool called copula, find that constructed copula is more viable than standard one observations favor 3 ? . The Akaike Bayes information criterions indicate quasar data support strongly relation. Our results show can be regarded as reliable indicator of cosmic distance if used to calibrate data.
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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/ac9df8