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

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Black hole spin-orbit misalignment in the x-ray binary MAXI J1820+070 (2022)
- Science
Poutanen Juri, Veledina Alexandra, Berdyugin Andrei V., Berdyugina Svetlana V., Jermak Helen, Jonker Peter G., Kajava Jari J. E., Kosenkov Ilia A., Kravtsov Vadim, Piirola Vilppu, Shrestha Manisha, Torres Manuel A. P., Tsygankov Sergey S.
Highly sensitive search for magnetic fields in white dwarfs using broad-band circular polarimetry (2022)
- Astronomy and Astrophysics
Berdyugin Andrei V., Piirola Vilppu, Bagnulo Stefano, Landstreet John D., Berdyugina Svetlana V.
Optical polarization signatures of black hole X-ray binaries (2022)
- Monthly Notices of the Royal Astronomical Society
Kravtsov Vadim, Berdyugin Andrei V, Kosenkov Ilia A, Veledina Alexandra, Piirola Vilppu, Qadir Yasir Abdul, Berdyugina Svetlana V, Sakanoi Takeshi, Kagitani Masato, Poutanen Juri
Polarimetry of M-type asteroids in the context of their surface composition (2022)
- Astronomy and Astrophysics
Belskaya I, Berdyugin Andrei, Krugly Y, Donchev Z, Sergeyev A, Gil-Hutton R, Mykhailova S, Bonev T, Piirola Vilppu, Berdyugina S, Kagitani M, Sakanoi T
Whence the Interstellar Magnetic Field Shaping the Heliosphere? (2022)
- Astrophysical Journal Supplement
Frisch PC, Piirola V, Berdyugin AB, Heiles C, Cole A, Hill K, Magalhaes AM, Wiktorowicz SJ, Bailey J, Cotton DV, Kedziora-Chudczer L, Schwadron NA, Bzowski M, McComas DJ, Zirnstein EJ, Funsten HO, Harlingten C, Redfield S
Double Image Polarimeter-Ultra Fast: Simultaneous Three-color (BV R) Polarimeter with Electron-multiplying Charge-coupled Devices (2021)
- The Astronomical Journal
Piirola Vilppu, Kosenkov Ilia A, Berdyugin Andrei V, Berdyugina Svetlana V, Poutanen Juri
On the Collisional Disalignment of Dust Grains in Illuminated and Shaded Regions of IC 63 (2021)
- Astrophysical Journal
Soam Archana, Andersson B-G, Acosta-Pulido Jose, Lopez Manuel F, Vaillancourt John E, Weaver Susanna LW, Piirola Vilppu, Gordon Michael S
A Multiwavelength Search for Intrinsic Linear Polarization in Wolf-Rayet Winds (2020)
- The Astronomical Journal
Fullard AG, St-Louis N, Moffat AFJ, Piirola VE, Manset N, Hoffman JL
Disc and wind in black hole X-ray binary MAXI J1820+070 observed through polarized light during its 2018 outburst (2020)
- Monthly Notices of the Royal Astronomical Society
Kosenkov IA, Veledina A, Berdyugin AV, Kravtsov V, Piirola V, Berdyugina SV, Sakanoi T, Kagitani M, Poutanen J
High-precision polarimetry of nearby stars (d < 50 pc): Mapping the interstellar dust and magnetic field inside the Local Bubble (2020)
- Astronomy and Astrophysics
V. Piirola, A. Berdyugin, P. C. Frisch, M. Kagitani, T. Sakanoi, S. Berdyugina, A. A. Cole, C. Harlingten, K. Hill
Orbital variability of the optical linear polarization of the γ -ray binary LS i +61° 303 and new constraints on the orbital parameters (2020)
- Astronomy and Astrophysics
Vadim Kravtsov, Andrei V. Berdyugin, Vilppu Piirola, Ilia A. Kosenkov, Sergey S. Tsygankov, Maria Chernyakova, Denys Malyshev, Takeshi Sakanoi, Masato Kagitani, Svetlana V. Berdyugina, Juri Poutanen
Probing Interstellar Grain Growth through Polarimetry in the Taurus Cloud Complex (2020)
- Astrophysical Journal
Vaillancourt J. E., Andersson B. -G., Clemens Dan P., Piirola Vilppu, Hoang Thiem, Becklin Eric E., Caputo Miranda
Accretion Disk Parameters Determined from the Great 2015 Flare of OJ 287 (2019)
- Astrophysical Journal
Valtonen MJ, Zola S, Pihajoki P, Enestam S, Lehto HJ, Dey L, Gopakumar A, Drozdz M, Ogloza W, Zejmos M, Gupta AC, Pursimo T, Ciprini S, Kidger M, Nilsson K, Berdyugin A, Piirola V, Jermak H, Hudec R, Laine S
Evolving optical polarisation of the black hole X-ray binary MAXI J1820+070 (2019)
- Astronomy and Astrophysics
Alexandra Veledina, Andrei V. Berdyugin, Ilia A. Kosenkov, Jari J.E. Kajava, Sergey S. Tsygankov, Vilppu Piirola, Svetlana V. Berdyugina, Takeshi Sakanoi, Masato Kagitani, Vadim Kravtsov, Juri Poutanen
Optical Polarimetry: Methods, Instruments and Calibration Techniques (2019) Astronomical Polarisation from the Infrared to Gamma Rays Berdyugin A., Piirola V., Poutanen J.
Optical polarimetry of the soft-state low-mass X-ray binary MAXI J0637-430 (2019) Astronomer's Telegram Kravtsov V, Berdyugin A, Veledina A, Poutanen J, Piirola V, Berdyugina S, Sakanoi T, Kagitani M
The Unique Blazar OJ 287 and Its Massive Binary Black Hole Central Engine (2019)
- Universe
Dey L, Gopakumar A, Valtonen M, Zola S, Susobhanan A, Hudec R, Pihajoki P, Pursimo T, Berdyugin A, Piirola V, Ciprini S, Nilsson K, Jermak H, Kidger M, Komossa S
Authenticating the Presence of a Relativistic Massive Black Hole Binary in OJ 287 Using Its General Relativity Centenary Flare: Improved Orbital Parameters (2018)
- Astrophysical Journal
Dey L, Valtonen MJ, Gopakumar A, Zola S, Hudec R, Pihajoki P, Ciprini S, Matsumoto K, Sadakane K, Kidger M, Nilsson K, Mikkola S, Sillanpaa A, Takalo LO, Lehto HJ, Berdyugin A, Piirola V, Jermak H, Baliyan KS, Pursimo T, Caton DB, Alicavus F, Baransky A, Blay P, Boumis P, Boyd D, Torrent MC, Campos F, Gomez JC, Chandra S, Chavushyan V, Dalessio J, Debski B, Drozdz M, Er H, Erdem A, Perez AE, Ramazani VF, Filippenko AV, Gafton E, Ganesh S, Garcia F, Gazeas K, Godunova V, Pinilla FG, Gopinathan M, Haislip JB, Harmanen J, Hurst G, Janik J, Jelinek M, Joshi A, Kagitani M, Karjalainen R, Kaur N, Keel WC, Kouprianov VV, Kundera T, Kurowski S, Kvammen A, LaCluyze AP, Lee BC, Liakos A, Lindfors E, de Haro JL, Mugrauer M, Nogues RN, Neely AW, Nelson RH, Ogloza W, Okano S, Pajdosz-Smierciak U, Pandey JC, Perri M, Poyner G, Provencal J, Raj A, Reichart DE, Reinthal R, Reynolds T, Saario J, Sadegi S, Sakanoi T, Gonzalez JLS, Sameer, Schweyer T, Simon A, Siwak M, Alfaro FCS, Sonbas E, Steele I, Stocke JT, Strobl J, Tomov T, Espasa LT, Valdes JR, Perez JV, Verrecchia F, Vasylenko V, Webb JR, Yoneda M, Zejmo M, Zheng W, Zielinski P
Development of PLANETS telescope and visible-infrared spectrometer for monitoring of planetary and exoplanetary atmospheres (2018)
- Proceedings of SPIE : the International Society for Optical Engineering
Proceedings Volume 10700, Ground-based and Airborne Telescopes VII Takeshi Sakanoi, Jeff Kuhn, Svetlana Berdyugina, Marcelo Emilio, Masato Kagitani, Yasuhiro Hirahara, Hiromu Nakagawa, Yasumasa Kasaba, Takahiro Obara, Shoichi Okano, Isabelle Scholl, Andrei Berdyugin, Vilppu Piirola
High-precision and high-accuracy polarimetry of exoplanets (2018)
- Proceedings of SPIE : the International Society for Optical Engineering
Ground-based and Airborne Instrumentation for Astronomy VII A. V. Berdyugin, S. V. Berdyugina, V. Piirola