A Search for QPOs in the Blazar OJ287: Preliminary Results from the 2015/2016 Observing Campaign

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 Gomez, J.; Caton, D. B.; Chavushyan, V.; Dalessio, J.; Dimitrov, D.; Drozdz, M.; Er, Hüseyin; Erdem, A.; Escartin Perez, A.; Ramazani, V. Fallah; Filippenko, A. V.; Garcia, F.; Gomez 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, Sameer; Salto Gonzalez, J. -L.; Schweyer, T.; Soldan 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 Perez, 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.

doi:10.3390/galaxies4040041

Makale Tam Makale Uluslararası 2016

A Search for QPOs in the Blazar OJ287: Preliminary Results from the 2015/2016 Observing Campaign

S. Zola, M. Valtonen, G. Bhatta, A. Goyal, B. Debski, A. Baran, J. Krzesinski, M. Siwak, S. Ciprini, A. Gopakumar, H. Jermak, K. Nilsson, D. Reichart, K. Matsumoto, K. Sadakane, K. Gazeas, M. Kidger, V. Piirola, F. Alicavus, K. S. Baliyan, A. Berdyugin, D. Boyd, M. Campas Torrent, F. Campos, J. Carrillo Gomez, D. B. Caton, V. Chavushyan, J. Dalessio, D. Dimitrov, M. Drozdz, Hüseyin Er, A. Erdem, A. Escartin Perez, V. Fallah Ramazani, A. V. Filippenko, F. Garcia, F. Gomez Pinilla, M. Gopinathan, J. B. Haislip, J. Harmanen, R. Hudec, G. Hurst, K. M. Ivarsen, M. Jelinek, A. Joshi, M. Kagitani, N. Kaur, W. C. Keel, A. P. Lacluyze, B. C. Lee, E. Lindfors, J. Lozano De Haro, J. P. Moore, M. Mugrauer, R. Naves Nogues, A. W. Neely, R. H. Nelson, W. Ogloza, S. Okano, J. C. Pandey, M. Perri, P. Pihajoki, G. Poyner, J. Provencal, T. Pursimo, A. Raj, R. Reinthal, S. Sadegi, T. Sakanoi, Sameer Sameer, J. -L. Salto Gonzalez, T. Schweyer, F. C. Soldan Alfaro, N. Karaman, E. Sonbas, I. Steele, J. T. Stocke, J. Strobl, L. O. Takalo, T. Tomov, L. Tremosa Espasa, J. R. Valdes, J. Valero Perez, F. Verrecchia, J. R. Webb, M. Yoneda, M. Zejmo, W. Zheng, J. Telting, J. Saario, T. Reynolds, A. Kvammen, E. Gafton, R. Karjalainen, P. Blay

GALAXIES Cilt 4 · 01.12.2016

DOI ile aç

Özet

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.

Anahtar kelimeler

SPACED DATA galaxies: active SUPERMASSIVE BLACK-HOLES BL Lacertae objects: individual (OJ287) GENERAL-RELATIVITY TIME-SERIES OJ 287

Atıf için künye

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., … Blay, P. (2016). A Search for QPOs in the Blazar OJ287: Preliminary Results from the 2015/2016 Observing Campaign. GALAXIES, 4. https://doi.org/10.3390/galaxies4040041

BibTeX

@article{zola2016-78018,
  author = {Zola, S. and Valtonen, M. and Bhatta, G. and Goyal, A. and Debski, B. and Baran, A. and Krzesinski, J. and Siwak, M. and Ciprini, S. and Gopakumar, A. and Jermak, H. and Nilsson, K. and Reichart, D. and Matsumoto, K. and Sadakane, K. and Gazeas, K. and Kidger, M. and Piirola, V. and Alicavus, F. and Baliyan, K. S. and Berdyugin, A. and Boyd, D. and Campas Torrent, M. and Campos, F. and Carrillo Gomez, J. and Caton, D. B. and Chavushyan, V. and Dalessio, J. and Dimitrov, D. and Drozdz, M. and Er, Hüseyin and Erdem, A. and Escartin Perez, A. and Ramazani, V. Fallah and Filippenko, A. V. and Garcia, F. and Gomez Pinilla, F. and Gopinathan, M. and Haislip, J. B. and Harmanen, J. and Hudec, R. and Hurst, G. and Ivarsen, K. M. and Jelinek, M. and Joshi, A. and Kagitani, M. and Kaur, N. and Keel, W. C. and Lacluyze, A. P. and Lee, B. C. and Lindfors, E. and Lozano De Haro, J. and Moore, J. P. and Mugrauer, M. and Naves Nogues, R. and Neely, A. W. and Nelson, R. H. and Ogloza, W. and Okano, S. and Pandey, J. C. and Perri, M. and Pihajoki, P. and Poyner, G. and Provencal, J. and Pursimo, T. and Raj, A. and Reinthal, R. and Sadegi, S. and Sakanoi, T. and Sameer, Sameer and Salto Gonzalez, J. -L. and Schweyer, T. and Soldan Alfaro, F. C. and Karaman, N. and Sonbas, E. and Steele, I. and Stocke, J. T. and Strobl, J. and Takalo, L. O. and Tomov, T. and Tremosa Espasa, L. and Valdes, J. R. and Valero Perez, J. and Verrecchia, F. and Webb, J. R. and Yoneda, M. and Zejmo, M. and Zheng, W. and Telting, J. and Saario, J. and Reynolds, T. and Kvammen, A. and Gafton, E. and Karjalainen, R. and Blay, P.},
  title = {A Search for QPOs in the Blazar OJ287: Preliminary Results from the 2015/2016 Observing Campaign},
  journal = {GALAXIES},
  year = {2016},
  volume = {4},
  issn = {2075-4434},
  doi = {10.3390/galaxies4040041},
  url = {https://akademik.atauni.edu.tr/yayinlar/78018-a-search-for-qpos-in-the-blazar-oj287-preliminary-results-from-the-20152016}
}