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EFFECT OF SPECTRAL INDEX DISTRIBUTION ON ESTIMATING THE AGN RADIO LUMINOSITY FUNCTION
Yuan ZL(袁尊理)1,2; Wang JC(王建成)1,2; Zhou M(周明)1,2; Mao JR(毛基荣)1,2
Source PublicationASTROPHYSICAL JOURNAL
2016-10-01
Volume829Issue:2
DOI10.3847/0004-637X/829/2/95
Contribution Rank第1完成单位
Indexed BySCI
Keywordgalaxies active - galaxies luminosity function, mass function - radio continuum galaxies
Abstract

In this paper, we scrutinize the effect of spectral index distribution on estimating the active galactic nucleus radio luminosity function (RLF) by a Monte Carlo method. We find that the traditional bivariate RLF estimators can cause bias in varying degrees. The bias is especially pronounced for the flat-spectrum radio sources whose spectral index distribution is more scattered. We believe that the bias is caused because the K-corrections complicate the truncation boundary on the L-z plane of the sample, but the traditional bivariate RLF estimators have difficulty dealing with this boundary condition properly. We suggest that the spectral index distribution should be incorporated into the RLF analysis process to obtain a robust estimation. This drives the need for a trivariate function of the form Phi(alpha, z, L), which we show provides an accurate basis for measuring the RLF.

Funding ProjectNational Natural Science Foundation of China[11133006] ; National Natural Science Foundation of China[11163006] ; National Natural Science Foundation of China[11173054] ; National Natural Science Foundation of China[11573060] ; Policy Research Program of Chinese Academy of Sciences[KJCX2-YW-T24] ; CAS "Light of West China" Program ; Hundred-Talent Program of Chinese Academy of Sciences ; Key Research Program of Chinese Academy of Sciences[KJZD-EW-M06]
Funding OrganizationNational Natural Science Foundation of China[11133006, 11163006, 11173054, 11573060] ; Policy Research Program of Chinese Academy of Sciences[KJCX2-YW-T24] ; CAS "Light of West China" Program ; Hundred-Talent Program of Chinese Academy of Sciences ; Key Research Program of Chinese Academy of Sciences[KJZD-EW-M06]
Language英语
Subject Area天文学 ; 天体物理学 ; 高能天体物理学 ; 星系与宇宙学
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherIOP PUBLISHING LTD
Publication PlaceTEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN0004-637X
URL查看原文
Archive Date2016-12-14
WOS IDWOS:000385377200037
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordHIGH-REDSHIFT ; SPACE DENSITY ; COMPLETE SAMPLES ; EVOLUTION ; GALAXIES ; QUASARS ; CUTOFF ; EMISSION
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/9747
Collection高能天体物理研究组
中国科学院天体结构与演化重点实验室
Corresponding AuthorYuan ZL(袁尊理)
Affiliation1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, China
2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011, China
Recommended Citation
GB/T 7714
Yuan ZL,Wang JC,Zhou M,et al. EFFECT OF SPECTRAL INDEX DISTRIBUTION ON ESTIMATING THE AGN RADIO LUMINOSITY FUNCTION[J]. ASTROPHYSICAL JOURNAL,2016,829(2).
APA Yuan ZL,Wang JC,Zhou M,&Mao JR.(2016).EFFECT OF SPECTRAL INDEX DISTRIBUTION ON ESTIMATING THE AGN RADIO LUMINOSITY FUNCTION.ASTROPHYSICAL JOURNAL,829(2).
MLA Yuan ZL,et al."EFFECT OF SPECTRAL INDEX DISTRIBUTION ON ESTIMATING THE AGN RADIO LUMINOSITY FUNCTION".ASTROPHYSICAL JOURNAL 829.2(2016).
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