dc.contributor.author |
Pandey A. |
|
dc.contributor.author |
Gupta A.C. |
|
dc.contributor.author |
Kurtanidze S.O. |
|
dc.contributor.author |
Wiita P.J. |
|
dc.contributor.author |
Damljanovic G. |
|
dc.contributor.author |
Bachev R. |
|
dc.contributor.author |
Zhang J. |
|
dc.contributor.author |
Kurtanidze O.M. |
|
dc.contributor.author |
Darriba A. |
|
dc.contributor.author |
Chigladze R.A. |
|
dc.contributor.author |
Latev G. |
|
dc.contributor.author |
Nikolashvili M.G. |
|
dc.contributor.author |
Peneva S. |
|
dc.contributor.author |
Semkov E. |
|
dc.contributor.author |
Strigachev A. |
|
dc.contributor.author |
Tiwari S.N. |
|
dc.contributor.author |
Vince O. |
|
dc.date.accessioned |
2021-02-24T20:31:49Z |
|
dc.date.available |
2021-02-24T20:31:49Z |
|
dc.date.issued |
2020 |
|
dc.identifier.issn |
0004-637X |
|
dc.identifier.uri |
https://dspace.kpfu.ru/xmlui/handle/net/160727 |
|
dc.description.abstract |
© 2020. The American Astronomical Society. All rights reserved. We report the results of our optical (VRI) photometric observations of the TeV blazar 1ES 0806+524 on 153 nights during 2011-2019 using seven optical telescopes in Europe and Asia. We investigated the variability of the blazar on intraday as well as on long-term timescales. We examined 18 intraday light curves for flux and color variations using the most reliable power-enhanced F-test and the nested ANOVA test. Only on one night was a small, but significant, variation found, in both V-band and R-band light curves. The V-R color index was constant on every one of those nights. Flux density changes of around 80% were seen over the course of these eight years in multiple bands. We found a weighted mean optical spectral index of 0.639 ± 0.002 during our monitoring period by fitting a power law (F ν ∝ ν-α) in 23 optical (VRI) spectral energy distributions of 1ES 0806+524. We discuss different possible mechanisms responsible for blazar variability on diverse timescales. |
|
dc.relation.ispartofseries |
Astrophysical Journal |
|
dc.title |
Optical Variability of the TeV Blazar 1ES 0806+524 on Diverse Timescales |
|
dc.type |
Article |
|
dc.relation.ispartofseries-issue |
1 |
|
dc.relation.ispartofseries-volume |
890 |
|
dc.collection |
Публикации сотрудников КФУ |
|
dc.source.id |
SCOPUS0004637X-2020-890-1-SID85081556400 |
|