Skip to Main content Skip to Navigation
Journal articles

The luminosity function of quasars by the Principle of Maximum Entropy

Abstract : We propose a different way to obtain the distribution of the luminosity function of quasars by using the Principle of Maximum Entropy. The input data come from Richard et al 2006 quasar counts, extending up to redshift 5 and limited from apparent magnitude i = 15-19.1 at z ≲ 3 to i = 20.2 for z ≳ 3. Using only few initial data points, the principle allows us to estimate probabilities and hence that luminosity curve. We carry out statistical tests to evaluate our results. The resulting luminosity function compares well to earlier determinations, and our results remain consistent either when the amount or choice of sampled sources is unbiasedly altered. Besides this, we estimate the distribution of the luminosity function for redshifts in which there is only observational data in the vicinity.
Document type :
Journal articles
Complete list of metadata

https://hal-insu.archives-ouvertes.fr/insu-03713104
Contributor : Nathalie POTHIER Connect in order to contact the contributor
Submitted on : Monday, July 4, 2022 - 2:16:04 PM
Last modification on : Wednesday, August 3, 2022 - 4:00:16 AM

Links full text

Identifiers

Citation

Alexandre Andrei, Bruno Coelho, Leandro L. S. Guedes, Alexandre Lyra. The luminosity function of quasars by the Principle of Maximum Entropy. Monthly Notices of the Royal Astronomical Society, 2019, 488, pp.183-190. ⟨10.1093/mnras/stz1627⟩. ⟨insu-03713104⟩

Share

Metrics

Record views

0