Multiwavelength 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 binary black hole system based on its periodic optical outburst. Black hole binary systems are scarce among blazars with parsec scale jets, and hence this source is exciting to study Aims. The BL Lac OJ 287 is an interesting object for multiwavelength study due to its periodic outbursts. We analysed the optical, X-ray and γ-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 in five segments, in this paper referred as A, B, C, D, and E. A detailed temporal and spectral analysis is performed to understand the nature of the flaring activities of OJ 287. Methods. To understand the temporal variability in this source we studied the intraday and fractional variability for all the various states. In additon, fast variability time was also estimated in order to understand the nature of variability. Furthermore, the multiwavelength spectral energy distribution (SED) modeling was 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 γ-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 very high state. A single-zone synchrotron self-Compton emission model is considered to model the SED, and this helps us to explore the nature of this BL Lac with binary supermassive black holes.
Fil: Prince, Raj. Polish Academy of Science; 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 Science; Polonia
Fil: Cellone, Sergio Aldo. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. 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. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. 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
BL LACERTAE OBJECTS: GENERAL
BL LACERTAE OBJECTS: INDIVIDUAL: OJ 287
GALAXIES: ACTIVE
GAMMA RAYS: GALAXIES
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/152368
Acceder
id CONICETDig_4b234eb9495b193530035f6affa42c4a
oai_identifier_str oai:ri.conicet.gov.ar:11336/152368
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Multiwavelength analysis and modeling of OJ 287 during 2017-2020Prince, RajAgarwal, AditiGupta, NayantaraMajumdar, PratikCzerny, BozenaCellone, Sergio AldoAndruchow, IleanaBL LACERTAE OBJECTS: GENERALBL LACERTAE OBJECTS: INDIVIDUAL: OJ 287GALAXIES: ACTIVEGAMMA RAYS: GALAXIEShttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Context. The blazar OJ 287 has been proposed as binary black hole system based on its periodic optical outburst. Black hole binary systems are scarce among blazars with parsec scale jets, and hence this source is exciting to study Aims. The BL Lac OJ 287 is an interesting object for multiwavelength study due to its periodic outbursts. We analysed the optical, X-ray and γ-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 in five segments, in this paper referred as A, B, C, D, and E. A detailed temporal and spectral analysis is performed to understand the nature of the flaring activities of OJ 287. Methods. To understand the temporal variability in this source we studied the intraday and fractional variability for all the various states. In additon, fast variability time was also estimated in order to understand the nature of variability. Furthermore, the multiwavelength spectral energy distribution (SED) modeling was 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 γ-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 very high state. A single-zone synchrotron self-Compton emission model is considered to model the SED, and this helps us to explore the nature of this BL Lac with binary supermassive black holes.Fil: Prince, Raj. Polish Academy of Science; 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 Science; PoloniaFil: Cellone, Sergio Aldo. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. 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. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. 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/11336/152368Prince, Raj; Agarwal, Aditi; Gupta, Nayantara; Majumdar, Pratik; Czerny, Bozena; et al.; Multiwavelength 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/abs/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 Técnicas2025-09-29T09:56:27Zoai:ri.conicet.gov.ar:11336/152368instacron: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 09:56:27.514CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Multiwavelength analysis and modeling of OJ 287 during 2017-2020
title Multiwavelength analysis and modeling of OJ 287 during 2017-2020
spellingShingle Multiwavelength analysis and modeling of OJ 287 during 2017-2020
Prince, Raj
BL LACERTAE OBJECTS: GENERAL
BL LACERTAE OBJECTS: INDIVIDUAL: OJ 287
GALAXIES: ACTIVE
GAMMA RAYS: GALAXIES
title_short Multiwavelength analysis and modeling of OJ 287 during 2017-2020
title_full Multiwavelength analysis and modeling of OJ 287 during 2017-2020
title_fullStr Multiwavelength analysis and modeling of OJ 287 during 2017-2020
title_full_unstemmed Multiwavelength analysis and modeling of OJ 287 during 2017-2020
title_sort Multiwavelength 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 BL LACERTAE OBJECTS: GENERAL
BL LACERTAE OBJECTS: INDIVIDUAL: OJ 287
GALAXIES: ACTIVE
GAMMA RAYS: GALAXIES
topic BL LACERTAE OBJECTS: GENERAL
BL LACERTAE OBJECTS: INDIVIDUAL: OJ 287
GALAXIES: ACTIVE
GAMMA RAYS: GALAXIES
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 binary black hole system based on its periodic optical outburst. Black hole binary systems are scarce among blazars with parsec scale jets, and hence this source is exciting to study Aims. The BL Lac OJ 287 is an interesting object for multiwavelength study due to its periodic outbursts. We analysed the optical, X-ray and γ-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 in five segments, in this paper referred as A, B, C, D, and E. A detailed temporal and spectral analysis is performed to understand the nature of the flaring activities of OJ 287. Methods. To understand the temporal variability in this source we studied the intraday and fractional variability for all the various states. In additon, fast variability time was also estimated in order to understand the nature of variability. Furthermore, the multiwavelength spectral energy distribution (SED) modeling was 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 γ-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 very high state. A single-zone synchrotron self-Compton emission model is considered to model the SED, and this helps us to explore the nature of this BL Lac with binary supermassive black holes.
Fil: Prince, Raj. Polish Academy of Science; 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 Science; Polonia
Fil: Cellone, Sergio Aldo. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. 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. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. 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 binary black hole system based on its periodic optical outburst. Black hole binary systems are scarce among blazars with parsec scale jets, and hence this source is exciting to study Aims. The BL Lac OJ 287 is an interesting object for multiwavelength study due to its periodic outbursts. We analysed the optical, X-ray and γ-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 in five segments, in this paper referred as A, B, C, D, and E. A detailed temporal and spectral analysis is performed to understand the nature of the flaring activities of OJ 287. Methods. To understand the temporal variability in this source we studied the intraday and fractional variability for all the various states. In additon, fast variability time was also estimated in order to understand the nature of variability. Furthermore, the multiwavelength spectral energy distribution (SED) modeling was 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 γ-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 very high state. A single-zone synchrotron self-Compton emission model is considered to model the SED, and this helps us to explore the nature of this BL Lac with binary supermassive 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/11336/152368
Prince, Raj; Agarwal, Aditi; Gupta, Nayantara; Majumdar, Pratik; Czerny, Bozena; et al.; Multiwavelength 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/11336/152368
identifier_str_mv Prince, Raj; Agarwal, Aditi; Gupta, Nayantara; Majumdar, Pratik; Czerny, Bozena; et al.; Multiwavelength 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/abs/2021/10/aa40708-21/aa40708-21.html
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
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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
dc.publisher.none.fl_str_mv EDP Sciences
publisher.none.fl_str_mv EDP Sciences
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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