Project momo: Multiwavelength observations and modeling of oj 287
| Autor: | Mauri Valtonen, José L. Gómez, Luigi C. Gallo, S. Komossa, Michael Parker, A. R. Hollett, Dirk Grupe, Stefano Ciprini, I. Myserlis, A. G. Gonzalez, A. Kraus, U. Bach |
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| Přispěvatelé: | European Commission, Ministerio de Economía y Competitividad (España), Parker, Michael [0000-0002-8466-7317], Apollo - University of Cambridge Repository, Kraus, A. [0000-0002-4184-9372], Myserlis, I. [0000-0003-3025-9497] |
| Rok vydání: | 2021 |
| Předmět: |
Swift
Neil Gehrels Swift observatory Active galactic nucleus Astrophysics::High Energy Astrophysical Phenomena General Physics and Astronomy Context (language use) Astrophysics QC793-793.5 Astrophysics::Cosmology and Extragalactic Astrophysics NuSTAR 01 natural sciences law.invention Telescope Binary black hole law Supermassive binary black holes 0103 physical sciences Jets Spectral energy distributions Blazar 010303 astronomy & astrophysics GeneralLiterature_REFERENCE(e.g. dictionaries encyclopedias glossaries) Astrophysics::Galaxy Astrophysics computer.programming_language Physics Active galactic nuclei Accretion (meteorology) 010308 nuclear & particles physics Black holes Elementary particle physics Light curve XMM-Newton computer OJ 287 Blazars |
| Zdroj: | Digital.CSIC. Repositorio Institucional del CSIC instname Universe, Vol 7, Iss 261, p 261 (2021) |
| Popis: | This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited. Our project MOMO (Multiwavelength observations and modeling of OJ 287) consists of dedicated, dense, long-term flux and spectroscopic monitoring, and deep follow-up observations of the blazar OJ 287 at >13 frequencies from the radio to the X-ray band since late 2015. In particular, we are using Swift to obtain optical-UV-X-ray spectral energy distributions (SEDs) and the Effelsberg telescope to obtain radio measurements between 2 and 40 GHz. MOMO is the densest long-term monitoring of OJ 287 involving X-rays and broad-band SEDs. The theoretical part of the project aims at understanding jet and accretion physics of the blazar central engine in general and the supermassive binary black hole scenario in particular. Results are presented in a sequence of publications and so far included: detection and detailed analysis of the bright 2016/17 and 2020 outbursts and the long-term light curve; Swift, XMM, and NuSTAR spectroscopy of the 2020 outburst around maximum; and interpretation of selected events in the context of the binary black hole scenario of OJ 287 (papers I–IV). Here, we provide a description of the project MOMO, a summary of previous results, the latest results, and we discuss future prospects. © 2021 by the authors. Licensee MDPI, Basel, Switzerland. With funding from the Spanish government through the Severo Ochoa Centre of Excellence accreditation SEV-2017-0709. |
| Databáze: | OpenAIRE |
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