Neutrino radiation of the AGN black holes

G. Ter-Kazarian, S. Shidhani, L. Sargsyan

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

In the framework of 'microscopic' theory of black holes (J. Phys. Soc. Jpn. Suppl. B 70, 84, 2001; Astrophys. USSR 4, 659, 1996; 35, 335, 1991, 33, 143, 1990, 31, 345, 1989a; Astrophys. Space Sci. 1, 1992; Dokl. Akad. Nauk USSR 309, 97, 1989b), and references therein, we address the 'pre-radiation time' (PRT) of neutrinos from black holes, which implies the lapse of time from black hole's birth till radiation of an extremely high energy neutrinos. For post-PRT lifetime, the black hole no longer holds as a region of spacetime that cannot communicate with the external universe. We study main features of spherical accretion onto central BH and infer a mass accretion rate onto it, and, further, calculate the resulting PRT versus bolometric luminosity due to accretion onto black hole. We estimate the PRTs of AGN black holes, with the well-determined masses and bolometric luminosities, collected from the literature by Woo Jong-Hak and Urry (Astrophys. J. 579, 530, 2002) on which this paper is partially based. The simulations for the black holes of masses M BH (1.1 106 ÷4.2 109)∈M give the values of PRTs varying in the range of about T BH (4.3 10 5 ÷5.6 1011) yr. The derived PRTs for the 60 AGN black holes are longer than the age of the universe (13.7 Gyr) favored today. At present, some of remaining 174 BHs may radiate neutrinos. However, these results would be underestimated if the reservoir of gas for accretion in the galaxy center is quite modest, and no obvious way to feed the BHs with substantial accretion.

Original languageEnglish
Pages (from-to)93-110
Number of pages18
JournalAstrophysics and Space Science
Volume310
Issue number1-2
DOIs
Publication statusPublished - Jul 2007

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Keywords

  • Accretion discs-galaxies: active-quasars: general-mass-luminosity relation-neutrinos
  • Black hole physics-accretion

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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