Vilppu Piirola - UTU Research Portal

Vilppu Piirola

- Docent,
Faculty of Science (University of Turku)

piirola@utu.fi

Väisäläntie 20

Kaarina

: https://orcid.org/0000-0003-0186-206X

6 of 7

A Search for QPOs in the Blazar OJ287: Preliminary Results from the 2015/2016 Observing Campaign (2016)
- Galaxies
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., Berdyugin A., Boyd D., Campas Torrent M., Campos F., Carrillo Gómez J., Caton D., Chavushyan V., Dalessio J., Dimitrov D., Drozdz M., Er H., Erdem A., Escartin Pérez A., Fallah Ramazani V., Filippenko A., Garcia F., Gómez Pinilla F., Gopinathan M., Haislip J., Harmanen J., Hudec R., Hurst G., Ivarsen K., Jelinek M., Joshi A., Kagitani M., Kaur N., Keel W., LaCluyze A., Lee B., Lindfors E., Lozano de Haro J., Moore J., Mugrauer M., Naves Nogues R., Neely A., Nelson R., Ogloza W., Okano S., Pandey J., 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., Karaman N., Sonbas E., Steele I., Stocke J., Strobl J., Takalo L., Tomov T., Tremosa Espasa L., Valdes J., Valero Pérez J., Verrecchia F., Webb J., Yoneda M., Zejmo M., Zheng W., Telting J., Saario J., Reynolds T., Kvammen A., Gafton E., Karjalainen R., Blay P.
Following the interstellar magnetic field from the heliosphere into space with polarized starlight (2016)
- Journal of Physics: Conference Series
15th Annual International Astrophysics Conference: "The Science of Ed Stone: Celebrating his 80th Birthday" Ferrari T., Seriacopi D., Schwadron N., Santos F., McComas D., Funsten H., Heiles C., Frisch P., Berdyugin A., Piirola V., Magalhaes A.
High-precision broad-band linear polarimetry of early-type binaries I. Discovery of variable, phase-locked polarization in HD48099 (2016)
- Astronomy and Astrophysics
A. Berdyugin, V. Piirola, S. Sadegi, S. Tsygankov, T. Sakanoi, M. Kagitani, M. Yoneda, S. Okano, J. Poutanen
Orbit of the OJ287 black hole binary as determined from the General Relativity centenary flare (2016) American Astronomical Society, DDA meeting #47, id.302.06 Valtonen Mauri, Gopakumar Achamveedu, Mikkola Seppo, Zola Staszek, Ciprini Stefano, Matsumoto Katsura, Sadakane Kozo, Kidger Mark, Gazeas Kosmas, Nilsson Kari, Berdyugin Andrei, Piirola Vilppu, Jermak Helen, Baliyan Kiran, Hudec Rene, Reichart Daniel
PRIMARY BLACK HOLE SPIN IN OJ 287 AS DETERMINED BY THE GENERAL RELATIVITY CENTENARY FLARE (2016)
- Astrophysical Journal Letters
Valtonen MJ, Zola S, Ciprini S, Gopakumar A, Matsumoto K, Sadakane K, Kidger M, Gazeas K, Nilsson K, Berdyugin A, Piirola V, Jermak H, Baliyan KS, Alicavus F, Boyd D, Torrent MC, Campos F, Gomez JC, Caton DB, Chavushyan V, Dalessio J, Debski B, Dimitrov D, Drozdz M, Er H, Erdem A, Perez AE, Ramazani VF, Filippenko AV, Ganesh S, Garcia F, Pinilla FG, Gopinathan M, Haislip JB, Hudec R, Hurst G, Ivarsen KM, Jelinek M, Joshi A, Kagitani M, Kaur N, Keel WC, LaCluyze AP, Lee BC, Lindfors E, de Haro JL, Moore JP, Mugrauer M, Nogues RN, Neely AW, Nelson RH, Ogloza W, Okano S, Pandey JC, Perri M, Pihajoki P, Poyner G, Provencal J, Pursimo T, Raj A, Reichart DE, Reinthal R, Sadegi S, Sakanoi T, Gonzalez JLS, Sameer, Schweyer T, Siwak M, Alfaro FCS, Sonbas E, Steele I, Stocke JT, Strobl J, Takalo LO, Tomov T, Espasa LT, Valdes JR, Perez JV, Verrecchia F, Webb JR, Yoneda M, Zejmo M, Zheng W, Telting J, Saario J, Reynolds T, Kvammen A, Gafton E, Karjalainen R, Harmanen J, Blay P
Charting the interstellar magnetic field causing the interstellar boundary explorer (IBEX) ribbon of energetic neutral atoms (2015)
- Astrophysical Journal
Frisch PC, Berdyugin A, Piirola V, Magalhaes AM, Seriacopi DB, Wiktorowicz SJ, Andersson BG, Funsten HO, McComas DJ, Schwadron NA, Slavin JD, Hanson AJ, Fu CW
Evidence for an interstellar dust filament in the outer heliosheat (2015)
- Astrophysical Journal
Frisch PC, Andersson BG, Berdyugin A, Piirola V, Funsten HO, Magalhaes AM, Seriacopi DB, McComas DJ, Schwadron NA, Slavin JD, Wiktorowicz SJ
DIPOL-2: a double image high precision polarimeter (2014)
- Proceedings of SPIE : the International Society for Optical Engineering
Ground-based and Airborn Instrumentation for Astronomy V V. Piirola, A. Berdyugin, Svetlana Berdyugina
Interstellar polarization at high galactic latitudes from distant stars. VIII. Patterns related to the local dust and gas shells from observations of ~3600 stars (2014)
- Astronomy and Astrophysics
Berdyugin A., Piirola V., Teerikorpi P.
Evidence for H2 Formation Driven Dust Grain Alignment in IC 63 (2013)
- Astrophysical Journal
B-G Andersson, V Piirola, J De Buizer, D P Clemens, A Uomoto, M Charcos-Llorens, T R Geballe, A Lazarian, T Hoang, T Vornanen