Multi-wavelength Analysis and Modeling of OJ 287 During 2017-2020
- Autores
- Prince, Raj; Agarwal, Aditi; Gupta, Nayantara; Majumdar, Pratik; Czerny, Bozena; Cellone, Sergio Aldo; Andruchow, Ileana
- Año de publicación
- 2021
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Context. The blazar OJ 287 has been proposed as a binary black hole system based on its periodic optical outburst. Among blazars with parsec scale jets, the black hole binary systems are very rare and hence this source is very interesting to study. Aims. The BL Lac OJ 287 is an interesting object for multi-wavelength study due to its periodic outbursts. We have analyzed the optical, X-ray, and gamma-ray data of OJ 287 for the period of 2017-2020. There are several high states in optical-UV and X-ray frequencies during this period. Based on the observed variability in optical and X-ray frequencies the entire period 2017-2020 is divided into five segments, referred to as A, B, C, D, & E in this paper. A detailed temporal and spectral analysis is performed to understand the nature of its flaring activities. Methods. To understand the temporal variability in this source we have studied the intra-day, and fractional variability for all the various states, and along with that fast variability time was also estimated to understand the nature of variability. Further, the multi-wavelength SED modeling is performed to know more about the physical processes responsible for the simultaneous broadband emission and the fast variability. Results. The Fermi-LAT observations show a moderate flux level of this source in gamma-ray frequency throughout this period, though flux variability has been observed. The source has shown a strong flux variability in X-ray, optical, and UV during early 2017 and mid-2020 when the source was in a very high state. A single zone SSC emission model is considered to model the spectral energy distributions and this helps us to explore the nature of this BL Lac with binary super-massive black holes.
Fil: Prince, Raj. Polish Academy of Sciences; Polonia
Fil: Agarwal, Aditi. Raman Research Institute; India
Fil: Gupta, Nayantara. Raman Research Institute; India
Fil: Majumdar, Pratik. Saha Institute Of Nuclear Physics; India
Fil: Czerny, Bozena. Polish Academy of Sciences; Polonia
Fil: Cellone, Sergio Aldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Complejo Astronómico "El Leoncito". Universidad Nacional de Córdoba. Complejo Astronómico "El Leoncito". Universidad Nacional de la Plata. Complejo Astronómico "El Leoncito". Universidad Nacional de San Juan. Complejo Astronómico "El Leoncito"; Argentina
Fil: Andruchow, Ileana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina - Materia
-
galaxies: active
gamma rays
galaxies; individuals: OJ 287 - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/172995
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Multi-wavelength Analysis and Modeling of OJ 287 During 2017-2020Prince, RajAgarwal, AditiGupta, NayantaraMajumdar, PratikCzerny, BozenaCellone, Sergio AldoAndruchow, Ileanagalaxies: activegamma raysgalaxies; individuals: OJ 287https://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Context. The blazar OJ 287 has been proposed as a binary black hole system based on its periodic optical outburst. Among blazars with parsec scale jets, the black hole binary systems are very rare and hence this source is very interesting to study. Aims. The BL Lac OJ 287 is an interesting object for multi-wavelength study due to its periodic outbursts. We have analyzed the optical, X-ray, and gamma-ray data of OJ 287 for the period of 2017-2020. There are several high states in optical-UV and X-ray frequencies during this period. Based on the observed variability in optical and X-ray frequencies the entire period 2017-2020 is divided into five segments, referred to as A, B, C, D, & E in this paper. A detailed temporal and spectral analysis is performed to understand the nature of its flaring activities. Methods. To understand the temporal variability in this source we have studied the intra-day, and fractional variability for all the various states, and along with that fast variability time was also estimated to understand the nature of variability. Further, the multi-wavelength SED modeling is performed to know more about the physical processes responsible for the simultaneous broadband emission and the fast variability. Results. The Fermi-LAT observations show a moderate flux level of this source in gamma-ray frequency throughout this period, though flux variability has been observed. The source has shown a strong flux variability in X-ray, optical, and UV during early 2017 and mid-2020 when the source was in a very high state. A single zone SSC emission model is considered to model the spectral energy distributions and this helps us to explore the nature of this BL Lac with binary super-massive black holes.Fil: Prince, Raj. Polish Academy of Sciences; PoloniaFil: Agarwal, Aditi. Raman Research Institute; IndiaFil: Gupta, Nayantara. Raman Research Institute; IndiaFil: Majumdar, Pratik. Saha Institute Of Nuclear Physics; IndiaFil: Czerny, Bozena. Polish Academy of Sciences; PoloniaFil: Cellone, Sergio Aldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Complejo Astronómico "El Leoncito". Universidad Nacional de Córdoba. Complejo Astronómico "El Leoncito". Universidad Nacional de la Plata. Complejo Astronómico "El Leoncito". Universidad Nacional de San Juan. Complejo Astronómico "El Leoncito"; ArgentinaFil: Andruchow, Ileana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; ArgentinaEDP Sciences2021-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/172995Prince, Raj; Agarwal, Aditi; Gupta, Nayantara; Majumdar, Pratik; Czerny, Bozena; et al.; Multi-wavelength Analysis and Modeling of OJ 287 During 2017-2020; EDP Sciences; Astronomy and Astrophysics; 654; A38; 10-2021; 1-140004-6361CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/202140708info:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/articles/aa/full_html/2021/10/aa40708-21/aa40708-21.htmlinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:40:18Zoai:ri.conicet.gov.ar:11336/172995instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:40:18.511CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Multi-wavelength Analysis and Modeling of OJ 287 During 2017-2020 |
title |
Multi-wavelength Analysis and Modeling of OJ 287 During 2017-2020 |
spellingShingle |
Multi-wavelength Analysis and Modeling of OJ 287 During 2017-2020 Prince, Raj galaxies: active gamma rays galaxies; individuals: OJ 287 |
title_short |
Multi-wavelength Analysis and Modeling of OJ 287 During 2017-2020 |
title_full |
Multi-wavelength Analysis and Modeling of OJ 287 During 2017-2020 |
title_fullStr |
Multi-wavelength Analysis and Modeling of OJ 287 During 2017-2020 |
title_full_unstemmed |
Multi-wavelength Analysis and Modeling of OJ 287 During 2017-2020 |
title_sort |
Multi-wavelength Analysis and Modeling of OJ 287 During 2017-2020 |
dc.creator.none.fl_str_mv |
Prince, Raj Agarwal, Aditi Gupta, Nayantara Majumdar, Pratik Czerny, Bozena Cellone, Sergio Aldo Andruchow, Ileana |
author |
Prince, Raj |
author_facet |
Prince, Raj Agarwal, Aditi Gupta, Nayantara Majumdar, Pratik Czerny, Bozena Cellone, Sergio Aldo Andruchow, Ileana |
author_role |
author |
author2 |
Agarwal, Aditi Gupta, Nayantara Majumdar, Pratik Czerny, Bozena Cellone, Sergio Aldo Andruchow, Ileana |
author2_role |
author author author author author author |
dc.subject.none.fl_str_mv |
galaxies: active gamma rays galaxies; individuals: OJ 287 |
topic |
galaxies: active gamma rays galaxies; individuals: OJ 287 |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Context. The blazar OJ 287 has been proposed as a binary black hole system based on its periodic optical outburst. Among blazars with parsec scale jets, the black hole binary systems are very rare and hence this source is very interesting to study. Aims. The BL Lac OJ 287 is an interesting object for multi-wavelength study due to its periodic outbursts. We have analyzed the optical, X-ray, and gamma-ray data of OJ 287 for the period of 2017-2020. There are several high states in optical-UV and X-ray frequencies during this period. Based on the observed variability in optical and X-ray frequencies the entire period 2017-2020 is divided into five segments, referred to as A, B, C, D, & E in this paper. A detailed temporal and spectral analysis is performed to understand the nature of its flaring activities. Methods. To understand the temporal variability in this source we have studied the intra-day, and fractional variability for all the various states, and along with that fast variability time was also estimated to understand the nature of variability. Further, the multi-wavelength SED modeling is performed to know more about the physical processes responsible for the simultaneous broadband emission and the fast variability. Results. The Fermi-LAT observations show a moderate flux level of this source in gamma-ray frequency throughout this period, though flux variability has been observed. The source has shown a strong flux variability in X-ray, optical, and UV during early 2017 and mid-2020 when the source was in a very high state. A single zone SSC emission model is considered to model the spectral energy distributions and this helps us to explore the nature of this BL Lac with binary super-massive black holes. Fil: Prince, Raj. Polish Academy of Sciences; Polonia Fil: Agarwal, Aditi. Raman Research Institute; India Fil: Gupta, Nayantara. Raman Research Institute; India Fil: Majumdar, Pratik. Saha Institute Of Nuclear Physics; India Fil: Czerny, Bozena. Polish Academy of Sciences; Polonia Fil: Cellone, Sergio Aldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Complejo Astronómico "El Leoncito". Universidad Nacional de Córdoba. Complejo Astronómico "El Leoncito". Universidad Nacional de la Plata. Complejo Astronómico "El Leoncito". Universidad Nacional de San Juan. Complejo Astronómico "El Leoncito"; Argentina Fil: Andruchow, Ileana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina |
description |
Context. The blazar OJ 287 has been proposed as a binary black hole system based on its periodic optical outburst. Among blazars with parsec scale jets, the black hole binary systems are very rare and hence this source is very interesting to study. Aims. The BL Lac OJ 287 is an interesting object for multi-wavelength study due to its periodic outbursts. We have analyzed the optical, X-ray, and gamma-ray data of OJ 287 for the period of 2017-2020. There are several high states in optical-UV and X-ray frequencies during this period. Based on the observed variability in optical and X-ray frequencies the entire period 2017-2020 is divided into five segments, referred to as A, B, C, D, & E in this paper. A detailed temporal and spectral analysis is performed to understand the nature of its flaring activities. Methods. To understand the temporal variability in this source we have studied the intra-day, and fractional variability for all the various states, and along with that fast variability time was also estimated to understand the nature of variability. Further, the multi-wavelength SED modeling is performed to know more about the physical processes responsible for the simultaneous broadband emission and the fast variability. Results. The Fermi-LAT observations show a moderate flux level of this source in gamma-ray frequency throughout this period, though flux variability has been observed. The source has shown a strong flux variability in X-ray, optical, and UV during early 2017 and mid-2020 when the source was in a very high state. A single zone SSC emission model is considered to model the spectral energy distributions and this helps us to explore the nature of this BL Lac with binary super-massive black holes. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-10 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/172995 Prince, Raj; Agarwal, Aditi; Gupta, Nayantara; Majumdar, Pratik; Czerny, Bozena; et al.; Multi-wavelength Analysis and Modeling of OJ 287 During 2017-2020; EDP Sciences; Astronomy and Astrophysics; 654; A38; 10-2021; 1-14 0004-6361 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/172995 |
identifier_str_mv |
Prince, Raj; Agarwal, Aditi; Gupta, Nayantara; Majumdar, Pratik; Czerny, Bozena; et al.; Multi-wavelength Analysis and Modeling of OJ 287 During 2017-2020; EDP Sciences; Astronomy and Astrophysics; 654; A38; 10-2021; 1-14 0004-6361 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/202140708 info:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/articles/aa/full_html/2021/10/aa40708-21/aa40708-21.html |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
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EDP Sciences |
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EDP Sciences |
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CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
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dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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