Preprint Article Version 1 NOT YET PEER-REVIEWED

Search for QPOs in the Light Curve of the Blazar OJ287: Preliminary Results from 2015/16 Observing Campaign

S. Zola 1,2,* , M. Valtonen 3,4 , G. Bhatta 1 , A. Goyal 1 , B. Debski 1 , A. Baran 2 , J. Krzesinski 2 , M. Siwak 2 , S. Ciprini 5,6 , A. Gopakumar 7 , H. Jermak 8 , K. Nilsson 4 , D. Reichart 9 , K. Matsumoto 10 , K. Sadakane 10 , K. Gazeas 11 , M. Kidger 12 , V. Piirola 3,4 , F. Alicavus 13,14 , K.S. Baliyan 15 , A. Berdyugin 4 , D. Boyd 16 , M. Campas Torrent 17 , F. Campos 18 , J. Carrillo Gomez 19 , D.B. Caton 20 , V. Chavushyan 21 , J. Dalessio 22 , D. Dimitrov 23 , M. Drozdz 2 , A. Erdem 13,14 , A. Escartin Perez 24 , V. Fallah Ramazani 4 , A.V. Filippenko 25 , F. Garcia 26 , F. Gomez Pinilla 27 , M. Gopinathan 28 , J.B. Haislip 9 , J. Harmanen 4 , G. Hurst 29 , K.M. Ivarsen 9 , M. Jelinek 30 , A. Joshi 28 , M. Kagitani 31 , N. Kaur 15 , N. Karaman 32 , W.C. Keel 33 , A.P. LaCluyze 9 , B.C. Lee 34 , E. Lindfors 4 , J. Lozano De Haro 35 , J.P. Moore 9 , R. Naves Nogues 18 , A.W. Neely 36 , R.H. Nelson 37 , W. Ogloza 2 , S. Okano 31 , J.C. Pandey 28 , M. Perri 5,38 , P. Pihajoki 39 , G. Poyner 40 , J. Provencal 22 , T. Pursimo 41 , A. Raj 42 , R. Reinthal 4 , S. Sadegi 4 , T. Sakanoi 31 , J.-L. Salto Gonzales 43 , Sameer 15 , T. Schweyer 44,45 , F.C. Soldan Alfaro 46 , E. Sonbas 32 , I. Steele 8 , J.T. Stocke 47 , J. Strobl 30 , L.O. Takalo 4 , T. Tomov 48 , L. Tremosa Espasa 49 , J.R. Valdes 21 , J. Valero Perez 50 , F. Verrecchia 5,39 , J.R. Webb 51 , M. Yoneda 52 , M. Zejmo 53 , W. Zheng 25 , J. Telting 41 , J. Saario 41 , T. Reynolds 41 , A. Kvammen 41 , E. Gafton 41 , R. Karjalainen 54 , P. Blay 55
  1. Astronomical Observatory, Jagiellonian Unviersity, ul. Orla 171, 30-244 Krakow, Poland
  2. Mt. Suhora Observatory, Pedagogical University, ul. Podchorazych 2, 30-084 Krakow, Poland
  3. Finnish Centre for Astronomy with ESO, University of Turku, Turku, Finland
  4. Tuorla Observatory, Department of Physics and Astronomy, University of Turku, Turku, Finland
  5. Agenzia Spaziale Italiana (ASI) Science Data Center, I-00133 Roma, Italy
  6. Istituto Nazionale di Fisica Nucleare, Sezione di Perugia, I-06123 Perugia, Italy
  7. Department of Astronomy and Astrophysics, Tata Institute of Fundamental Research, Mumbai 400005, India
  8. Astrophysics Research Institute, Liverpool John Moores University, IC2, Liverpool Science Park, Brownlow Hill L3 5RF, UK
  9. University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
  10. Astronomical Institute, Osaka Kyoiku University, 4-698 Asahigaoka, Kashiwara, Osaka 582-8582, Japan
  11. Department of Astrophysics, Astronomy and Mechanics, National & Kapodistrian University of Athens, Zografos GR-15784, Athens, Greece
  12. Herschel Science Centre, ESAC, European Space Agency, 28691 Villanueva de la Cañada, Madrid, Spain
  13. Department of Physics, Faculty of Arts and Sciences, Canakkale Onsekiz Mart University, TR-17100 Canakkale, Turkey
  14. Astrophysics Research Center and Ulupinar Observatory, Canakkale Onsekiz Mart University, TR-17100, Canakkale, Turkey
  15. Physical Research Laboratory, Ahmedabad 380009, India
  16. 5, Silver Lane,West Challow, Wantage, Oxon, OX12 9TX, UK
  17. C/ Jaume Balmes No 24, E-08348 Cabrils, Barcelona, Spain
  18. C/.Riera, 1, 1o 3a B, Spain
  19. Carretera de Martos 28 primero Fuensanta, Jaen, Spain
  20. Dark Sky Observatory, Dept. of Physics and Astronomy, Appalachian State University, Boone, NC 28608, USA
  21. Instituto Nacional de Astrofisica, Óptica y Electrónica, Apartado Postal 51-216, 72000 Puebla, México
  22. University of Delaware, Department of Physics and Astronomy, Newark, DE 19716, USA
  23. Institute of Astronomy and NAO, Bulg. Acad. Sc., 72 Tsarigradsko Chaussee Blvd., 1784 Sofia, Bulgaria
  24. Aritz Bidea No 8 4 B (48100) Mungia Bizkaia, Spain
  25. Department of Astronomy, University of California, Berkeley, CA 94720-3411, USA
  26. Muñas de Arriba La Vara, Valdés (MPC J38) 33780 Valdés, Asturias – Spain
  27. C/ Concejo de Teverga 9, 1 C, E-28053 Madrid, Spain
  28. Aryabhatta Research Institute of Observational Sciences (ARIES), Nainital, 263002 India
  29. 16 Westminster Close, Basingstoke, Hampshire RG22 4PP, UK
  30. Astronomical Institute, The Czech Academy of Sciences, 25165 Ondˇrejov, Czech Republic
  31. Planetary Plasma and Atmospheric Research Center, Tohoku University, Sendai, Japan
  32. University of Adiyaman, Department of Physics, 02040 Adiyaman, Turkey
  33. Department of Physics and Astronomy and SARA Observatory, University of Alabama, Box 870324, Tuscaloosa, AL 35487, USA
  34. Korea Astronomy and Space Science Institute, 776, Daedeokdae-Ro, Youseong-Gu, 305-348 Daejeon, Korea
  35. Partida de Maitino, pol. 2 num. 163 (03206) Elche, Alicante, Spain
  36. NF/Observatory, Silver City, NM 88041, USA
  37. 1393 Garvin Street, Prince George, BC V2M 3Z1, Canada
  38. INAF–Osservatorio Astronomico di Roma, via Frascati 33, I-00040 Monteporzio Catone, Italy
  39. Department of Physics, University of Helsinki, P.O. Box 64, FI-00014 Helsinki, Finland
  40. BAA Variable Star Section, 67 Ellerton Road, Kingstanding, Birmingham B44 0QE, UK
  41. Nordic Optical Telescope, Apartado 474, E-38700 Santa Cruz de La Palma, Spain
  42. Indian Institute of Astrophysics, II Block Koramangala, Bangalore 560 034, India
  43. Observatori Cal Maciarol módul 8. Masia Cal Maciarol, camí de l’Observatori s/n 25691 Ager, Spain
  44. Max Planck Institute for Extraterrestrial Physics, Giessenbachstrasse, D-85748 Garching, Germany
  45. Technische Universität München, Physik Department, James-Franck-Str., D-85748 Garching, Germany
  46. C/Petrarca 6 1a 41006 Sevilla, Spain
  47. Center for Astrophysics and Space Astronomy, Department of Astrophysical and Planetary Sciences, Box 389, University of Colorado, Boulder, CO 80309, USA
  48. Centre for Astronomy, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, ul. Grudziadzka 5, 87-100 Torun, Poland
  49. C/Cardenal Vidal i Barraquee No 3, E-43850 Cambrils, Tarragona, Spain
  50. C/Matarrasa, 16 24411 Ponferrada, León, Spain
  51. Florida International University and SARA Observatory, University Park Campus, Miami, FL 33199, USA
  52. Kiepenheuer-Institut fur Sonnenphysic, D-79104 Freiburg, Germany
  53. Janusz Gil Institute of Astronomy, University of Zielona Góra, Szafrana 2, PL-65-516 Zielona Góra, Poland
  54. Isaac Newton Group of Telescopes, Apartado 321, E-38700 Santa Cruz de La Palma, Spain
  55. IAC-NOT, C/Via Lactea, S/N, E-38205, La Laguna, Spain
Version 1 : Received: 16 July 2016 / Approved: 18 July 2016 / Online: 18 July 2016 (10:46:26 CEST)

A peer-reviewed article of this Preprint also exists.

Zola, S.; Valtonen, M.; Bhatta, G.; Goyal, A.; Debski, B.; Baran, A.; Krzesinski, J.; Siwak, M.; Ciprini, S.; Gopakumar, A.; Jermak, H.; Nilsson, K.; Reichart, D.; Matsumoto, K.; Sadakane, K.; Gazeas, K.; Kidger, M.; Piirola, V.; Alicavus, F.; Baliyan, K.S.; Berdyugin, A.; Boyd, D.; Campas Torrent, M.; Campos, F.; Carrillo Gómez, J.; Caton, D.B.; Chavushyan, V.; Dalessio, J.; Dimitrov, D.; Drozdz, M.; Er, H.; Erdem, A.; Escartin Pérez, A.; Fallah Ramazani, V.; Filippenko, A.V.; Garcia, F.; Gómez Pinilla, F.; Gopinathan, M.; Haislip, J.B.;Harmanen, J.; Hudec, R.; Hurst, G.; Ivarsen, K.M.; Jelinek, M.; Joshi, A.; Kagitani, M.; Kaur, N.; Keel, W.C.; LaCluyze, A.P.; Lee, B.C.; Lindfors, E.; Lozano de Haro, J.; Moore, J.P.; Mugrauer, M.; Naves Nogues, R.; Neely, A.W.; Nelson, R.H.; Ogloza, W.; Okano, S.; Pandey, J.C.; Perri, M.; Pihajoki, P.; Poyner, G.; Provencal, J.; Pursimo, T.; Raj, A.; Reinthal, R.; Sadegi, S.; Sakanoi, T.; Sameer; Salto González, J.-L.; Schweyer, T.; Soldán Alfaro, F.C.; Karaman, N.; Sonbas, E.; Steele, I.; Stocke, J.T.; Strobl, J.; Takalo, L.O.; Tomov, T.; Tremosa Espasa, L.; Valdes, J.R.; Valero Pérez, J.; Verrecchia, F.; Webb, J.R.; Yoneda, M.; Zejmo, M.; Zheng, W.; Telting, J.; Saario, J.; Reynolds, T.; Kvammen, A.; Gafton, E.; Karjalainen, R.; Blay, P. A Search for QPOs in the Blazar OJ287: Preliminary Results from the 2015/2016 Observing Campaign. Galaxies 2016, 4, 41. Zola, S.; Valtonen, M.; Bhatta, G.; Goyal, A.; Debski, B.; Baran, A.; Krzesinski, J.; Siwak, M.; Ciprini, S.; Gopakumar, A.; Jermak, H.; Nilsson, K.; Reichart, D.; Matsumoto, K.; Sadakane, K.; Gazeas, K.; Kidger, M.; Piirola, V.; Alicavus, F.; Baliyan, K.S.; Berdyugin, A.; Boyd, D.; Campas Torrent, M.; Campos, F.; Carrillo Gómez, J.; Caton, D.B.; Chavushyan, V.; Dalessio, J.; Dimitrov, D.; Drozdz, M.; Er, H.; Erdem, A.; Escartin Pérez, A.; Fallah Ramazani, V.; Filippenko, A.V.; Garcia, F.; Gómez Pinilla, F.; Gopinathan, M.; Haislip, J.B.;Harmanen, J.; Hudec, R.; Hurst, G.; Ivarsen, K.M.; Jelinek, M.; Joshi, A.; Kagitani, M.; Kaur, N.; Keel, W.C.; LaCluyze, A.P.; Lee, B.C.; Lindfors, E.; Lozano de Haro, J.; Moore, J.P.; Mugrauer, M.; Naves Nogues, R.; Neely, A.W.; Nelson, R.H.; Ogloza, W.; Okano, S.; Pandey, J.C.; Perri, M.; Pihajoki, P.; Poyner, G.; Provencal, J.; Pursimo, T.; Raj, A.; Reinthal, R.; Sadegi, S.; Sakanoi, T.; Sameer; Salto González, J.-L.; Schweyer, T.; Soldán Alfaro, F.C.; Karaman, N.; Sonbas, E.; Steele, I.; Stocke, J.T.; Strobl, J.; Takalo, L.O.; Tomov, T.; Tremosa Espasa, L.; Valdes, J.R.; Valero Pérez, J.; Verrecchia, F.; Webb, J.R.; Yoneda, M.; Zejmo, M.; Zheng, W.; Telting, J.; Saario, J.; Reynolds, T.; Kvammen, A.; Gafton, E.; Karjalainen, R.; Blay, P. A Search for QPOs in the Blazar OJ287: Preliminary Results from the 2015/2016 Observing Campaign. Galaxies 2016, 4, 41.

Journal reference: Galaxies 2016, 4, 41
DOI: 10.3390/galaxies4040041

Abstract

We analyse the light curve in the R-band gathered during the 2015/16 observing season of OJ287. We did a search for QPOs using several methods in wide time domain. No statistically significant periods were found in the high frequency domain both in the ground data and also in K2 observations. In the longer periods domain the Lomb-Scargle periodogram revealed several peaks above the 99\% significance level. The longest one, about 95-day, corresponds to the ISCO period of the more massive SMBH. The 43-day period could be an alias or can be attributed to accretion in the form of two armed spiral wave.

Subject Areas

galaxies: active; BL Lacertae objects: individual (OJ 287); super massive black holes

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