A Search for QPOs in the Blazar OJ287: Preliminary Results from the 2015/2016 Observing Campaign
Zejmo M.; Gopakumar A.; Harmanen J.; Keel W.; Neely A.; Chavushyan V.; Lozano de Haro J.; Nilsson K.; Zola S.; LaCluyze A.; Gazeas K.; Dimitrov D.; Baran A.; Sadegi S.; Valtonen M.; Kagitani M.; Garcia F.; Naves Nogues R.; Siwak M.; Joshi A.; Kvammen A.; Krzesinski J.; Baliyan K.; Poyner G.; Nelson R.; Dalessio J.; Okano S.; Valero Pérez J.; Raj A.; Lindfors E.; Zheng W.; Pihajoki P.; Hurst G.; Campas Torrent M.; Karaman N.; Piirola V.; Webb J.; Salto González J.-L.; Soldán Alfaro F.; Valdes J.; Kidger M.; Tomov T.; Carrillo Gómez J.; Schweyer T.; Hudec R.; Ivarsen K.; Reinthal R.; Jelinek M.; Jermak H.; Boyd D.; Ogloza W.; Sameer; Pursimo T.; Gómez Pinilla F.; Erdem A.; Sadakane K.; Pandey J.; Bhatta G.; Reichart D.; Fallah Ramazani V.; Escartin Pérez A.; Matsumoto K.; Reynolds T.; Moore J.; Mugrauer M.; Karjalainen R.; Er H.; Strobl J.; Filippenko A.; Saario J.; Telting J.; Tremosa Espasa L.; Haislip J.; Sonbas E.; Goyal A.; Lee B.; Drozdz M.; Gopinathan M.; Blay P.; Perri M.; Verrecchia F.; Debski B.; Takalo L.; Alicavus F.; Ciprini S.; Steele I.; Stocke J.; Berdyugin A.; Kaur N.; Provencal J.; Campos F.; Gafton E.; Caton D.; Sakanoi T.; Yoneda M.
A Search for QPOs in the Blazar OJ287: Preliminary Results from the 2015/2016 Observing Campaign
Zejmo M.
Gopakumar A.
Harmanen J.
Keel W.
Neely A.
Chavushyan V.
Lozano de Haro J.
Nilsson K.
Zola S.
LaCluyze A.
Gazeas K.
Dimitrov D.
Baran A.
Sadegi S.
Valtonen M.
Kagitani M.
Garcia F.
Naves Nogues R.
Siwak M.
Joshi A.
Kvammen A.
Krzesinski J.
Baliyan K.
Poyner G.
Nelson R.
Dalessio J.
Okano S.
Valero Pérez J.
Raj A.
Lindfors E.
Zheng W.
Pihajoki P.
Hurst G.
Campas Torrent M.
Karaman N.
Piirola V.
Webb J.
Salto González J.-L.
Soldán Alfaro F.
Valdes J.
Kidger M.
Tomov T.
Carrillo Gómez J.
Schweyer T.
Hudec R.
Ivarsen K.
Reinthal R.
Jelinek M.
Jermak H.
Boyd D.
Ogloza W.
Sameer
Pursimo T.
Gómez Pinilla F.
Erdem A.
Sadakane K.
Pandey J.
Bhatta G.
Reichart D.
Fallah Ramazani V.
Escartin Pérez A.
Matsumoto K.
Reynolds T.
Moore J.
Mugrauer M.
Karjalainen R.
Er H.
Strobl J.
Filippenko A.
Saario J.
Telting J.
Tremosa Espasa L.
Haislip J.
Sonbas E.
Goyal A.
Lee B.
Drozdz M.
Gopinathan M.
Blay P.
Perri M.
Verrecchia F.
Debski B.
Takalo L.
Alicavus F.
Ciprini S.
Steele I.
Stocke J.
Berdyugin A.
Kaur N.
Provencal J.
Campos F.
Gafton E.
Caton D.
Sakanoi T.
Yoneda M.
M D P I AG
Julkaisun pysyvä osoite on:
https://urn.fi/URN:NBN:fi-fe2021042716027
https://urn.fi/URN:NBN:fi-fe2021042716027
Tiivistelmä
We analyse the light curve in the R band of the blazar OJ287,
gathered during the 2015/2016 observing season. We did a search for
quasi-periodic oscillations (QPOs) using several methods over a wide
range of timescales. No statistically significant periods were found in
the high-frequency domain both in the ground-based data and in Kepler
observations. In the longer-period domain, the Lomb–Scargle periodogram
revealed several peaks above the 99% significance level. The longest
one—about 95 days—corresponds to the innermost stable circular orbit
(ISCO) period of the more massive black hole. The 43-day period could be
an alias, or it can be attributed to accretion in the form of a
two-armed spiral wave.
gathered during the 2015/2016 observing season. We did a search for
quasi-periodic oscillations (QPOs) using several methods over a wide
range of timescales. No statistically significant periods were found in
the high-frequency domain both in the ground-based data and in Kepler
observations. In the longer-period domain, the Lomb–Scargle periodogram
revealed several peaks above the 99% significance level. The longest
one—about 95 days—corresponds to the innermost stable circular orbit
(ISCO) period of the more massive black hole. The 43-day period could be
an alias, or it can be attributed to accretion in the form of a
two-armed spiral wave.
Kokoelmat
- Rinnakkaistallenteet [19207]