Multiband optical variability on diverse time-scales of the TeV blazar TXS 0506 + 056, the first cosmic neutrino source

Autores
Dhiman, Vinit; Gupta, Alok C.; Bachev, Rumen; Wiita, Paul J.; Cellone, Sergio Aldo; Strigachev, A.; Gaur, Haritma; Darriba, A.; Bisen, D. P.; Locatelli, G.; Mammana, Luis Antonio; Semkov, E.
Año de publicación
2024
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We report the first extensive optical flux and spectral variability study of the TeV blazar TXS 0506+056 on intranight to long-term time-scales using BVRI data collected o ver 220 nights between 2017 January 21 to 2022 April 9 using eight optical ground-based telescopes. In our search for intraday variability (IDV), we have employed two statistical analysis techniques, the nested ANOVA test and the power enhanced F-test. We found the source was variable in 8 nights out of 35 in the R-band and in 2 of 14 in the V-band yielding duty cycles (DC) of 22.8 per cent and 14.3 per cent, respectively. Clear colour variation in V − R was seen in only 1 out of 14 observing nights, but no IDV was found in the more limited B, I, and B − I data. During our monitoring period the source showed a 1.18 mag variation in the R-band and similar variations are clearly seen at all opticalwavelengths. We extracted the optical (BVRI ) SEDs of the blazar for 44 nights when observations were carried out in all four of those wavebands. The mean spectral index (α) was determined to be 0.897 ± 0.171.
Fil: Dhiman, Vinit. Aryabhatta Research Institute Of Observational Sciences; India
Fil: Gupta, Alok C.. Aryabhatta Research Institute Of Observational Sciences; India
Fil: Bachev, Rumen. Bulgarian Academy Of Sciences; Bulgaria
Fil: Wiita, Paul J.. State University of New Jersey; Estados Unidos
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: Strigachev, A.. Bulgarian Academy Of Sciences; Bulgaria
Fil: Gaur, Haritma. Aryabhatta Research Institute Of Observational Sciences; India
Fil: Darriba, A.. Centro Astronómico de Avila; España
Fil: Bisen, D. P.. Ravishankar Shukla University; India
Fil: Locatelli, G.. No especifíca;
Fil: Mammana, Luis Antonio. 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: Semkov, E.. Bulgarian Academy Of Sciences; Bulgaria
Materia
galaxies: acti ve
BL Lacertae objects: general
BL Lacertae objects: individual: TXS 0506 + 056
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:11336/261386
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/261386
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Multiband optical variability on diverse time-scales of the TeV blazar TXS 0506 + 056, the first cosmic neutrino sourceDhiman, VinitGupta, Alok C.Bachev, RumenWiita, Paul J.Cellone, Sergio AldoStrigachev, A.Gaur, HaritmaDarriba, A.Bisen, D. P.Locatelli, G.Mammana, Luis AntonioSemkov, E.galaxies: acti veBL Lacertae objects: generalBL Lacertae objects: individual: TXS 0506 + 056https://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We report the first extensive optical flux and spectral variability study of the TeV blazar TXS 0506+056 on intranight to long-term time-scales using BVRI data collected o ver 220 nights between 2017 January 21 to 2022 April 9 using eight optical ground-based telescopes. In our search for intraday variability (IDV), we have employed two statistical analysis techniques, the nested ANOVA test and the power enhanced F-test. We found the source was variable in 8 nights out of 35 in the R-band and in 2 of 14 in the V-band yielding duty cycles (DC) of 22.8 per cent and 14.3 per cent, respectively. Clear colour variation in V − R was seen in only 1 out of 14 observing nights, but no IDV was found in the more limited B, I, and B − I data. During our monitoring period the source showed a 1.18 mag variation in the R-band and similar variations are clearly seen at all opticalwavelengths. We extracted the optical (BVRI ) SEDs of the blazar for 44 nights when observations were carried out in all four of those wavebands. The mean spectral index (α) was determined to be 0.897 ± 0.171.Fil: Dhiman, Vinit. Aryabhatta Research Institute Of Observational Sciences; IndiaFil: Gupta, Alok C.. Aryabhatta Research Institute Of Observational Sciences; IndiaFil: Bachev, Rumen. Bulgarian Academy Of Sciences; BulgariaFil: Wiita, Paul J.. State University of New Jersey; Estados UnidosFil: 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: Strigachev, A.. Bulgarian Academy Of Sciences; BulgariaFil: Gaur, Haritma. Aryabhatta Research Institute Of Observational Sciences; IndiaFil: Darriba, A.. Centro Astronómico de Avila; EspañaFil: Bisen, D. P.. Ravishankar Shukla University; IndiaFil: Locatelli, G.. No especifíca;Fil: Mammana, Luis Antonio. 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: Semkov, E.. Bulgarian Academy Of Sciences; BulgariaWiley Blackwell Publishing, Inc2024-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/261386Dhiman, Vinit; Gupta, Alok C.; Bachev, Rumen; Wiita, Paul J.; Cellone, Sergio Aldo; et al.; Multiband optical variability on diverse time-scales of the TeV blazar TXS 0506 + 056, the first cosmic neutrino source; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 527; 1; 1-2024; 1344-13560035-8711CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/527/1/1344/7326778info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stad3232info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:16:05Zoai:ri.conicet.gov.ar:11336/261386instacron: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:34982025-10-22 11:16:05.386CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Multiband optical variability on diverse time-scales of the TeV blazar TXS 0506 + 056, the first cosmic neutrino source
title Multiband optical variability on diverse time-scales of the TeV blazar TXS 0506 + 056, the first cosmic neutrino source
spellingShingle Multiband optical variability on diverse time-scales of the TeV blazar TXS 0506 + 056, the first cosmic neutrino source
Dhiman, Vinit
galaxies: acti ve
BL Lacertae objects: general
BL Lacertae objects: individual: TXS 0506 + 056
title_short Multiband optical variability on diverse time-scales of the TeV blazar TXS 0506 + 056, the first cosmic neutrino source
title_full Multiband optical variability on diverse time-scales of the TeV blazar TXS 0506 + 056, the first cosmic neutrino source
title_fullStr Multiband optical variability on diverse time-scales of the TeV blazar TXS 0506 + 056, the first cosmic neutrino source
title_full_unstemmed Multiband optical variability on diverse time-scales of the TeV blazar TXS 0506 + 056, the first cosmic neutrino source
title_sort Multiband optical variability on diverse time-scales of the TeV blazar TXS 0506 + 056, the first cosmic neutrino source
dc.creator.none.fl_str_mv Dhiman, Vinit
Gupta, Alok C.
Bachev, Rumen
Wiita, Paul J.
Cellone, Sergio Aldo
Strigachev, A.
Gaur, Haritma
Darriba, A.
Bisen, D. P.
Locatelli, G.
Mammana, Luis Antonio
Semkov, E.
author Dhiman, Vinit
author_facet Dhiman, Vinit
Gupta, Alok C.
Bachev, Rumen
Wiita, Paul J.
Cellone, Sergio Aldo
Strigachev, A.
Gaur, Haritma
Darriba, A.
Bisen, D. P.
Locatelli, G.
Mammana, Luis Antonio
Semkov, E.
author_role author
author2 Gupta, Alok C.
Bachev, Rumen
Wiita, Paul J.
Cellone, Sergio Aldo
Strigachev, A.
Gaur, Haritma
Darriba, A.
Bisen, D. P.
Locatelli, G.
Mammana, Luis Antonio
Semkov, E.
author2_role author
author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv galaxies: acti ve
BL Lacertae objects: general
BL Lacertae objects: individual: TXS 0506 + 056
topic galaxies: acti ve
BL Lacertae objects: general
BL Lacertae objects: individual: TXS 0506 + 056
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We report the first extensive optical flux and spectral variability study of the TeV blazar TXS 0506+056 on intranight to long-term time-scales using BVRI data collected o ver 220 nights between 2017 January 21 to 2022 April 9 using eight optical ground-based telescopes. In our search for intraday variability (IDV), we have employed two statistical analysis techniques, the nested ANOVA test and the power enhanced F-test. We found the source was variable in 8 nights out of 35 in the R-band and in 2 of 14 in the V-band yielding duty cycles (DC) of 22.8 per cent and 14.3 per cent, respectively. Clear colour variation in V − R was seen in only 1 out of 14 observing nights, but no IDV was found in the more limited B, I, and B − I data. During our monitoring period the source showed a 1.18 mag variation in the R-band and similar variations are clearly seen at all opticalwavelengths. We extracted the optical (BVRI ) SEDs of the blazar for 44 nights when observations were carried out in all four of those wavebands. The mean spectral index (α) was determined to be 0.897 ± 0.171.
Fil: Dhiman, Vinit. Aryabhatta Research Institute Of Observational Sciences; India
Fil: Gupta, Alok C.. Aryabhatta Research Institute Of Observational Sciences; India
Fil: Bachev, Rumen. Bulgarian Academy Of Sciences; Bulgaria
Fil: Wiita, Paul J.. State University of New Jersey; Estados Unidos
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: Strigachev, A.. Bulgarian Academy Of Sciences; Bulgaria
Fil: Gaur, Haritma. Aryabhatta Research Institute Of Observational Sciences; India
Fil: Darriba, A.. Centro Astronómico de Avila; España
Fil: Bisen, D. P.. Ravishankar Shukla University; India
Fil: Locatelli, G.. No especifíca;
Fil: Mammana, Luis Antonio. 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: Semkov, E.. Bulgarian Academy Of Sciences; Bulgaria
description We report the first extensive optical flux and spectral variability study of the TeV blazar TXS 0506+056 on intranight to long-term time-scales using BVRI data collected o ver 220 nights between 2017 January 21 to 2022 April 9 using eight optical ground-based telescopes. In our search for intraday variability (IDV), we have employed two statistical analysis techniques, the nested ANOVA test and the power enhanced F-test. We found the source was variable in 8 nights out of 35 in the R-band and in 2 of 14 in the V-band yielding duty cycles (DC) of 22.8 per cent and 14.3 per cent, respectively. Clear colour variation in V − R was seen in only 1 out of 14 observing nights, but no IDV was found in the more limited B, I, and B − I data. During our monitoring period the source showed a 1.18 mag variation in the R-band and similar variations are clearly seen at all opticalwavelengths. We extracted the optical (BVRI ) SEDs of the blazar for 44 nights when observations were carried out in all four of those wavebands. The mean spectral index (α) was determined to be 0.897 ± 0.171.
publishDate 2024
dc.date.none.fl_str_mv 2024-01
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/11336/261386
Dhiman, Vinit; Gupta, Alok C.; Bachev, Rumen; Wiita, Paul J.; Cellone, Sergio Aldo; et al.; Multiband optical variability on diverse time-scales of the TeV blazar TXS 0506 + 056, the first cosmic neutrino source; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 527; 1; 1-2024; 1344-1356
0035-8711
CONICET Digital
CONICET
url http://hdl.handle.net/11336/261386
identifier_str_mv Dhiman, Vinit; Gupta, Alok C.; Bachev, Rumen; Wiita, Paul J.; Cellone, Sergio Aldo; et al.; Multiband optical variability on diverse time-scales of the TeV blazar TXS 0506 + 056, the first cosmic neutrino source; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 527; 1; 1-2024; 1344-1356
0035-8711
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/527/1/1344/7326778
info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stad3232
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
application/pdf
dc.publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
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
_version_ 1846781604187340800
score 12.982451

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