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DC Field | Value | Language |
---|---|---|
dc.citation.endPage | 5646 | - |
dc.citation.number | 4 | - |
dc.citation.startPage | 5629 | - |
dc.citation.title | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | - |
dc.citation.volume | 504 | - |
dc.contributor.author | Raiteri, C. M. | - |
dc.contributor.author | Villata, M. | - |
dc.contributor.author | Larionov, V. M. | - |
dc.contributor.author | Jorstad, S. G. | - |
dc.contributor.author | Marscher, A. P. | - |
dc.contributor.author | Weaver, Z. R. | - |
dc.contributor.author | Acosta-Pulido, J. A. | - |
dc.contributor.author | Agudo, I | - |
dc.contributor.author | Andreeva, T. | - |
dc.contributor.author | Arkharov, A. | - |
dc.contributor.author | Bachev, R. | - |
dc.contributor.author | Benitez, E. | - |
dc.contributor.author | Berton, M. | - |
dc.contributor.author | Bjorklund, I | - |
dc.contributor.author | Borman, G. A. | - |
dc.contributor.author | Bozhilov, V | - |
dc.contributor.author | Carnerero, M., I | - |
dc.contributor.author | Carosati, D. | - |
dc.contributor.author | Casadio, C. | - |
dc.contributor.author | Chen, W. P. | - |
dc.contributor.author | Damljanovic, G. | - |
dc.contributor.author | D'Ammando, F. | - |
dc.contributor.author | Escudero, J. | - |
dc.contributor.author | Fuentes, A. | - |
dc.contributor.author | Giroletti, M. | - |
dc.contributor.author | Grishina, T. S. | - |
dc.contributor.author | Gupta, A. C. | - |
dc.contributor.author | Hagen-Thorn, V. A. | - |
dc.contributor.author | Hart, M. | - |
dc.contributor.author | Hiriart, D. | - |
dc.contributor.author | Hou, W-J | - |
dc.contributor.author | Ivanov, D. | - |
dc.contributor.author | Kim, Jae-Young | - |
dc.contributor.author | Kimeridze, G. N. | - |
dc.contributor.author | Konstantopoulou, C. | - |
dc.contributor.author | Kopatskaya, E. N. | - |
dc.contributor.author | Kurtanidze, O. M. | - |
dc.contributor.author | Kurtanidze, S. O. | - |
dc.contributor.author | Lahteenmaki, A. | - |
dc.contributor.author | Larionova, E. G. | - |
dc.contributor.author | Larionova, L., V | - |
dc.contributor.author | Marchili, N. | - |
dc.contributor.author | Markovic, G. | - |
dc.contributor.author | Minev, M. | - |
dc.contributor.author | Morozova, D. A. | - |
dc.contributor.author | Myserlis, I | - |
dc.contributor.author | Nakamura, M. | - |
dc.contributor.author | Nikiforova, A. A. | - |
dc.contributor.author | Nikolashvili, M. G. | - |
dc.contributor.author | Otero-Santos, J. | - |
dc.contributor.author | Ovcharov, E. | - |
dc.contributor.author | Pursimo, T. | - |
dc.contributor.author | Rahimov, I | - |
dc.contributor.author | Righini, S. | - |
dc.contributor.author | Sakamoto, T. | - |
dc.contributor.author | Savchenko, S. S. | - |
dc.contributor.author | Semkov, E. H. | - |
dc.contributor.author | Shakhovskoy, D. | - |
dc.contributor.author | Sigua, L. A. | - |
dc.contributor.author | Stojanovic, M. | - |
dc.contributor.author | Strigachev, A. | - |
dc.contributor.author | Thum, C. | - |
dc.contributor.author | Tornikoski, M. | - |
dc.contributor.author | Traianou, E. | - |
dc.contributor.author | Troitskaya, Y., V | - |
dc.contributor.author | Troitskiy, I. S. | - |
dc.contributor.author | Tsai, A. | - |
dc.contributor.author | Valcheva, A. | - |
dc.contributor.author | Vasilyev, A. A. | - |
dc.contributor.author | Vince, O. | - |
dc.contributor.author | Zaharieva, E. | - |
dc.date.accessioned | 2024-09-19T15:35:09Z | - |
dc.date.available | 2024-09-19T15:35:09Z | - |
dc.date.created | 2024-09-19 | - |
dc.date.issued | 2021-07 | - |
dc.description.abstract | Among active galactic nuclei, blazars show extreme variability properties. We here investigate the case of the BL Lac object S4 0954+65 with data acquired in 2019-2020 by the Transiting Exoplanet Survey Satellite (TESS) and by the Whole Earth Blazar Telescope (WEBT) Collaboration. The 2-min cadence optical light curves provided by TESS during three observing sectors of nearly 1 month each allow us to study the fast variability in great detail. We identify several characteristic short-term time-scales, ranging from a few hours to a few days. However, these are not persistent, as they differ in the various TESS sectors. The long-term photometric and polarimetric optical and radio monitoring undertaken by the WEBT brings significant additional information, revealing that (i) in the optical, long-term flux changes are almost achromatic, while the short-term ones are strongly chromatic; (ii) the radio flux variations at 37 GHz follow those in the optical with a delay of about 3 weeks; (iii) the range of variation of the polarization degree and angle is much larger in the optical than in the radio band, but the mean polarization angles are similar; (iv) the optical long-term variability is characterized by a quasi-periodicity of about 1 month. We explain the source behaviour in terms of a rotating inhomogeneous helical jet, whose pitch angle can change in time. | - |
dc.identifier.bibliographicCitation | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, v.504, no.4, pp.5629 - 5646 | - |
dc.identifier.doi | 10.1093/mnras/stab1268 | - |
dc.identifier.issn | 0035-8711 | - |
dc.identifier.scopusid | 2-s2.0-85108587265 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/83809 | - |
dc.identifier.wosid | 000661537200067 | - |
dc.language | 영어 | - |
dc.publisher | OXFORD UNIV PRESS | - |
dc.title | The complex variability of blazars: time-scales and periodicity analysis in S4 0954+65 | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Astronomy & Astrophysics | - |
dc.relation.journalResearchArea | Astronomy & Astrophysics | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | galaxies: jets | - |
dc.subject.keywordAuthor | galaxies: active | - |
dc.subject.keywordAuthor | BL Lacertae objects: general | - |
dc.subject.keywordAuthor | BL Lacertae objects: individual: S4 0954+65 | - |
dc.subject.keywordPlus | BL-LAC OBJECT | - |
dc.subject.keywordPlus | EXTRAGALACTIC RADIO-SOURCES | - |
dc.subject.keywordPlus | OPTICAL POLARIZATION-PLANE | - |
dc.subject.keywordPlus | ACTIVE GALACTIC NUCLEI | - |
dc.subject.keywordPlus | MM POLARIMETRIC SURVEY | - |
dc.subject.keywordPlus | RAY LIGHT CURVES | - |
dc.subject.keywordPlus | GAMMA-RAY | - |
dc.subject.keywordPlus | WEBT CAMPAIGN | - |
dc.subject.keywordPlus | CTA 102 | - |
dc.subject.keywordPlus | MULTIWAVELENGTH BEHAVIOR | - |
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