Accretion history of active black holes from type 1 AGN

Autor(es)

Pereira, Eduardo S. ^[1] ; Miranda, Oswaldo D. ^[1]

Afiliação do(s) autor(es)

^[1] Inst Nacl Pesquisas Espaciais, Div Astrofis, BR-12227010 Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: ASTROPHYSICS AND SPACE SCIENCE; v. 352, n. 2, p. 801-807, AUG 2014.
• Citações Web of Science: 0

Resumo

Almost all galaxies have massive central black holes in their centers with masses typically ranging from similar to 10(5) to similar to 10(9) M-aS (TM). However, the origin and evolution of these objects and their connection with the hosting galaxies are not completely understood yet. In this work we analyze the mass accretion rate of supermassive black holes (SMBH's) and the mean Eddington ratio (MER) of type 1 AGN using data from the Sloan Sky Survey. For this purpose we improve the method for constructing the subsample of SMBH, taking into account the survey flux limit and the bias of the sample. It was observed that the mean bolometric luminosity of the active black holes can be represented by a function composed by a power law in mass and a like-Schechter function in redshift. Our results also show that both the mean Eddington ratio and the mass accretion rate are proportional to this function. (AU)

• Processo FAPESP: 12/21877-5 - Simulação numérica da evolução da população de buracos negros supermassivos e seu papel na reionização do universo
• Beneficiário: Eduardo dos Santos Pereira
• Linha de fomento: Bolsas no Brasil - Pós-Doutorado