A4 Vertaisarvioitu artikkeli konferenssijulkaisussa

Time-domain behavior of blazar OJ 287 and the binary supermassive black hole conjecture




TekijätCiprini S., Valtonen M., Zola S., Goyal A., Pihajoki P.

ToimittajaNo available

Konferenssin vakiintunut nimiFermi Symposium

KustantajaSissa Medialab Srl

Julkaisuvuosi2017

JournalPOS Proceedings of Science

Kokoomateoksen nimi7th International Fermi Symposium (IFS2017)

Tietokannassa oleva lehden nimiProceedings of Science

Sarjan nimiProceedings of Science

ISSN1824-8039

Verkko-osoitehttps://pos.sissa.it/312/041/pdf

Rinnakkaistallenteen osoitehttps://research.utu.fi/converis/portal/detail/Publication/29621709


Tiivistelmä

The proper understanding of blazar variability at the various electromagnetic spectral bands is one goal of multifrequency astrophysics. In this frame a peculiar and controversial phenomenology is the periodicity, postulated for long-term radio or optical flux light curves of about a dozen of blazars. The well-known BL Lac object OJ 287 (PKS 0851+202, S3 0851+20, PG 0851+202, z = 0.306) is not only a high-variable, peculiar, extragalactic source with hints for approximatively cyclical optical outbursts, but it also represents a case of substantial intensive and extensive (longterm) multifrequency observations. This rich database allow us a deeper analysis based on a wide range of variability timescales with some recent results that are highlighted here.


Ladattava julkaisu

This is an electronic reprint of the original article.
This reprint may differ from the original in pagination and typographic detail. Please cite the original version.





Last updated on 2024-26-11 at 11:51