Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Stochastic Modeling of Multiwavelength Variability of the Classical BL Lac Object OJ 287 on Timescales Ranging from Decades to Hours. / Goyal, A.; Stawarz; Zola, S.; Marchenko, V.; Soida, M.; Nilsson, K.; Ciprini, S.; Baran, A.; Ostrowski, M.; Wiita, P. J.; Gopal-Krishna; Siemiginowska, A.; Sobolewska, M.; Jorstad, S.; Marscher, A.; Aller, M. F.; Aller, H. D.; Hovatta, T.; Caton, D. B.; Reichart, D.; Matsumoto, K.; Sadakane, K.; Gazeas, K.; Kidger, M.; Piirola, V.; Jermak, H.; Alicavus, F.; Baliyan, K. S.; Baransky, A.; Berdyugin, A.; Blay, P.; Boumis, P.; Boyd, D.; Bufan, Y.; Torrent, M. Campas; Campos, F.; Gómez, J. Carrillo; Dalessio, J.; Debski, B.; Dimitrov, D.; Drozdz, M.; Er, H.; Erdem, A.; Pérez, A. Escartin; Ramazani, V. Fallah; Filippenko, A. V.; Gafton, E.; Garcia, F.; Godunova, V.; Pinilla, F. Gómez; Gopinathan, M.; Haislip, J. B.; Haque, S.; Harmanen, J.; Hudec, R.; Hurst, G.; Ivarsen, K. M.; Joshi, A.; Kagitani, M.; Karaman, N.; Karjalainen, R.; Kaur, N.; Kozieł-Wierzbowska, D.; Kuligowska, E.; Kundera, T.; Kurowski, S.; Kvammen, A.; Lacluyze, A. P.; Lee, B. C.; Liakos, A.; Haro, J. Lozano De; Moore, J. P.; Mugrauer, M.; Nogues, R. Naves; Neely, A. W.; Ogloza, W.; Okano, S.; Pajdosz, U.; Pandey, J. C.; Perri, M.; Poyner, G.; Provencal, J.; Pursimo, T.; Raj, A.; Rajkumar, B.; Reinthal, R.; Reynolds, T.; Saario, J.; Sadegi, S.; Sakanoi, T.; González, J. L.Salto; Sameer; Simon, A. O.; Siwak, M.; Schweyer, T.; Alfaro, F. C.Soldán; Sonbas, E.; Strobl, J.; Takalo, L. O.; Espasa, L. Tremosa; Valdes, J. R.; Vasylenko, V. V.; Verrecchia, F.; Webb, J. R.; Yoneda, M.; Zejmo, M.; Zheng, W.; Zielinski, P.; Janik, J.; Chavushyan, V.; Mohammed, I.; Cheung, C. C.; Giroletti, M.
в: Astrophysical Journal, Том 863, № 2, 175, 20.08.2018.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Stochastic Modeling of Multiwavelength Variability of the Classical BL Lac Object OJ 287 on Timescales Ranging from Decades to Hours
AU - Goyal, A.
AU - Stawarz,
AU - Zola, S.
AU - Marchenko, V.
AU - Soida, M.
AU - Nilsson, K.
AU - Ciprini, S.
AU - Baran, A.
AU - Ostrowski, M.
AU - Wiita, P. J.
AU - Gopal-Krishna,
AU - Siemiginowska, A.
AU - Sobolewska, M.
AU - Jorstad, S.
AU - Marscher, A.
AU - Aller, M. F.
AU - Aller, H. D.
AU - Hovatta, T.
AU - Caton, D. B.
AU - Reichart, D.
AU - Matsumoto, K.
AU - Sadakane, K.
AU - Gazeas, K.
AU - Kidger, M.
AU - Piirola, V.
AU - Jermak, H.
AU - Alicavus, F.
AU - Baliyan, K. S.
AU - Baransky, A.
AU - Berdyugin, A.
AU - Blay, P.
AU - Boumis, P.
AU - Boyd, D.
AU - Bufan, Y.
AU - Torrent, M. Campas
AU - Campos, F.
AU - Gómez, J. Carrillo
AU - Dalessio, J.
AU - Debski, B.
AU - Dimitrov, D.
AU - Drozdz, M.
AU - Er, H.
AU - Erdem, A.
AU - Pérez, A. Escartin
AU - Ramazani, V. Fallah
AU - Filippenko, A. V.
AU - Gafton, E.
AU - Garcia, F.
AU - Godunova, V.
AU - Pinilla, F. Gómez
AU - Gopinathan, M.
AU - Haislip, J. B.
AU - Haque, S.
AU - Harmanen, J.
AU - Hudec, R.
AU - Hurst, G.
AU - Ivarsen, K. M.
AU - Joshi, A.
AU - Kagitani, M.
AU - Karaman, N.
AU - Karjalainen, R.
AU - Kaur, N.
AU - Kozieł-Wierzbowska, D.
AU - Kuligowska, E.
AU - Kundera, T.
AU - Kurowski, S.
AU - Kvammen, A.
AU - Lacluyze, A. P.
AU - Lee, B. C.
AU - Liakos, A.
AU - Haro, J. Lozano De
AU - Moore, J. P.
AU - Mugrauer, M.
AU - Nogues, R. Naves
AU - Neely, A. W.
AU - Ogloza, W.
AU - Okano, S.
AU - Pajdosz, U.
AU - Pandey, J. C.
AU - Perri, M.
AU - Poyner, G.
AU - Provencal, J.
AU - Pursimo, T.
AU - Raj, A.
AU - Rajkumar, B.
AU - Reinthal, R.
AU - Reynolds, T.
AU - Saario, J.
AU - Sadegi, S.
AU - Sakanoi, T.
AU - González, J. L.Salto
AU - Sameer,
AU - Simon, A. O.
AU - Siwak, M.
AU - Schweyer, T.
AU - Alfaro, F. C.Soldán
AU - Sonbas, E.
AU - Strobl, J.
AU - Takalo, L. O.
AU - Espasa, L. Tremosa
AU - Valdes, J. R.
AU - Vasylenko, V. V.
AU - Verrecchia, F.
AU - Webb, J. R.
AU - Yoneda, M.
AU - Zejmo, M.
AU - Zheng, W.
AU - Zielinski, P.
AU - Janik, J.
AU - Chavushyan, V.
AU - Mohammed, I.
AU - Cheung, C. C.
AU - Giroletti, M.
PY - 2018/8/20
Y1 - 2018/8/20
N2 - We present the results of our power spectral density analysis for the BL Lac object OJ 287, utilizing the Fermi-LAT survey at high-energy.-rays, Swift-XRT in X-rays, several ground-based telescopes and the Kepler satellite in the optical, and radio telescopes at GHz frequencies. The light curves are modeled in terms of continuous-time autoregressive moving average (CARMA) processes. Owing to the inclusion of the Kepler data, we were able to construct for the first time the optical variability power spectrum of a blazar without any gaps across similar to 6 dex in temporal frequencies. Our analysis reveals that the radio power spectra are of a colored-noise type on timescales ranging from tens of years down to months, with no evidence for breaks or other spectral features. The overall optical power spectrum is also consistent with a colored noise on the variability timescales ranging from 117 years down to hours, with no hints of any quasi-periodic oscillations. The X-ray power spectrum resembles the radio and optical power spectra on the analogous timescales ranging from tens of years down to months. Finally, the.-ray power spectrum is noticeably different from the radio, optical, and X-ray power spectra of the source: we have detected a characteristic relaxation timescale in the Fermi-LAT data, corresponding to similar to 150 days, such that on timescales longer than this, the power spectrum is consistent with uncorrelated (white) noise, while on shorter variability timescales there is correlated (colored) noise.
AB - We present the results of our power spectral density analysis for the BL Lac object OJ 287, utilizing the Fermi-LAT survey at high-energy.-rays, Swift-XRT in X-rays, several ground-based telescopes and the Kepler satellite in the optical, and radio telescopes at GHz frequencies. The light curves are modeled in terms of continuous-time autoregressive moving average (CARMA) processes. Owing to the inclusion of the Kepler data, we were able to construct for the first time the optical variability power spectrum of a blazar without any gaps across similar to 6 dex in temporal frequencies. Our analysis reveals that the radio power spectra are of a colored-noise type on timescales ranging from tens of years down to months, with no evidence for breaks or other spectral features. The overall optical power spectrum is also consistent with a colored noise on the variability timescales ranging from 117 years down to hours, with no hints of any quasi-periodic oscillations. The X-ray power spectrum resembles the radio and optical power spectra on the analogous timescales ranging from tens of years down to months. Finally, the.-ray power spectrum is noticeably different from the radio, optical, and X-ray power spectra of the source: we have detected a characteristic relaxation timescale in the Fermi-LAT data, corresponding to similar to 150 days, such that on timescales longer than this, the power spectrum is consistent with uncorrelated (white) noise, while on shorter variability timescales there is correlated (colored) noise.
KW - acceleration of particles
KW - BL Lacertae objects: individual (OJ 287)
KW - galaxies: active
KW - magnetic fields
KW - radiation mechanisms: non-thermal
KW - UNEQUALLY-SPACED DATA
KW - MISSION
KW - LARGE-AREA TELESCOPE
KW - OJ-287
KW - PERIODICITIES
KW - ACTIVE GALACTIC NUCLEI
KW - BLAZARS
KW - OPTICAL POLARIZATION
KW - OJ 287
KW - LACERTAE OBJECTS
UR - http://www.scopus.com/inward/record.url?scp=85052370335&partnerID=8YFLogxK
UR - http://arxiv.org/abs/1709.04457
UR - http://www.mendeley.com/research/stochastic-modeling-multiwavelength-variability-classical-bl-lac-object-oj-287-timescales-ranging-de
U2 - 10.3847/1538-4357/aad2de
DO - 10.3847/1538-4357/aad2de
M3 - Article
AN - SCOPUS:85052370335
VL - 863
JO - Astrophysical Journal
JF - Astrophysical Journal
SN - 0004-637X
IS - 2
M1 - 175
ER -
ID: 35999394