Vilppu Piirola
 


piirola@utu.fi

Väisäläntie 20

Kaarina


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

  
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  • IXPE observation of the low-synchrotron peaked blazar S4 0954+65 during an optical-X-ray flare  (2025)  
    • Astronomy and Astrophysics
     Kouch, P.M.; Liodakis, I.; Fenu, F.; Zhang, H.; Boula, S.; Middei, R.; Di Gesu, L.; Paraschos, G.F.; Agudo, I.; Jorstad, S.G.; Lindfors, E.; Marscher, A.P.; Krawczynski, H.; Negro, M.; Hu, K.; Kim, D.E.; Cavazzuti, E.; Errando, M.; Blinov, D.; Gourni, A.; Kiehlmann, S.; Kourtidis, A.; Mandarakas, N.; Triantafyllou, N.; Vervelaki, A.; Borman, G.A.; Kopatskaya, E.N.; Larionova, E.G.; Morozova, D.A.; Savchenko, S.S.; Vasilyev, A.A.; Troitskiy, I.S.; Grishina, T.S.; Shishkina, E.V.; Zhovtan, A.V.; Aceituno, F.J.; Bonnoli, G.; Casanova, V.; Escudero, J.; Agís-González, B.; Husillos, C.; Otero-Santos, J.; Piirola, V.; Sota, A.; Myserlis, I.; Gurwell, M.; Keating, G.K.; Rao, R.; Angelakis, E.; Kraus, A.; Antonelli, L.A.; Bachetti, M.; Baldini, L.; Baumgartner, W.H.; Bellazzini, R.; Bianchi, S.; Bongiorno, S.D.; Bonino, R.; Brez, A.; Bucciantini, N.; Capitanio, F.; Castellano, S.; Chen, C.T.; Ciprini, S.; Costa, E.; De Rosa, A.; Del Monte, E.; Di Lalla, N.; Di Marco, A.; Donnarumma, I.; Doroshenko, V.; Dovčiak, M.; Ehlert, S.R.; Enoto, T.; Evangelista, Y.; Fabiani, S.; Ferrazzoli, R.; Garcia, J.A.; Gunji, S.; Hayashida, K.; Heyl, J.; Iwakiri, W.; Kaaret, P.; Karas, V.; Kislat, F.; Kitaguchi, T.; Kolodziejczak, J.J.; La Monaca, F.; Latronico, L.; Maldera, S.; Manfreda, A.; Marin, F.; Marinucci, A.; Marshall, H.L.; Massaro, F.; Matt, G.; Mitsuishi, I.; Mizuno, T.; Muleri, F.; Ng, C.Y.; O'Dell, S.L.; Omodei, N.; Oppedisano, C.; Papitto, A.; Pavlov, G.G.; Peirson, A.L.; Perri, M.; Pesce-Rollins, M.; Petrucci, P.O.; Pilia, M.; Possenti, A.; Poutanen, J.; Puccetti, S.; Ramsey, B.D.; Rankin, J.; Ratheesh, A.; Roberts, O.J.; Sgrò, C.; Slane, P.; Soffitta, P.; Spandre, G.; Swartz, D.A.; Tamagawa, T.; Tavecchio, F.; Taverna, R.; Tawara, Y.; Tennant, A.F.; Thomas, N.E.; Tombesi, F.; Trois, A.; Tsygankov, S.S.; Turolla, R.; Romani, R.W.; Vink, J.; Weisskopf, M.C.; Wu, K.; Xie, F.; Zane, S.


  • Characterization of High-polarization Stars and Blazars with DIPOL-1 at Sierra Nevada Observatory  (2024)  
    • The Astronomical Journal
     Otero-Santos, J.; Piirola, V.; Escudero Pedrosa, J.; Agudo, I.; Morcuende, D.; Sota, A.; Casanova, V.,; Aceituno, F. J.; Santos-Sanz, P.


  • IOP4, the Interactive Optical Photo-Polarimetric Python Pipeline  (2024)  
    • The Astronomical Journal
     Pedrosa, Juan Escudero; Agudo, Ivan; Morcuende, Daniel; Otero-Santos, Jorge; Bonnoli, Giacomo; Piirola, Vilppu; Husillos, Cesar; Bernardos, Mabel; Lopez-Coto, Ruben; Sota, Alfredo; Casanova, Victor; Aceituno, Fran J.; Santos-Sanz, Pablo


  • Searching for magnetic fields in featureless white dwarfs with the DIPOL-UF polarimeter at the Nordic Optical Telescope  (2024)  
    • Astronomy and Astrophysics
     Berdyugin, A.; Landstreet, J. D.; Bagnulo, S.; Piirola, V.; Berdyugina, S. V.


  • Studying geometry of the ultraluminous X-ray pulsar Swift J0243.6+6124 using X-ray and optical polarimetry  (2024)  
    • Astronomy and Astrophysics
     Poutanen, Juri; Tsygankov, Sergey S.; Doroshenko, Victor; Forsblom, Sofia V.; Jenke, Peter; Kaaret, Philip; Berdyugin, Andrei V.; Blinov, Dmitry; Kravtsov, Vadim; Liodakis, Ioannis; Tzouvanou, Anastasia; Di Marco, Alessandro; Heyl, Jeremy; La Monaca, Fabio; Mushtukov, Alexander A.; Pavlov, George G.; Salganik, Alexander; Veledina, Alexandra; Weisskopf, Martin C.; Zane, Silvia; Loktev, Vladislav; Suleimanov, Valery F.; Wilson-Hodge, Colleen; Berdyugina, Svetlana V.; Kagitani, Masato; Piirola, Vilppu; Sakanoi, Takeshi; Agudo, Iván; Antonelli, Lucio A.; Bachetti, Matteo; Baldini, Luca; Baumgartner, Wayne H.; Bellazzini, Ronaldo; Bianchi, Stefano; Bongiorno, Stephen D.; Bonino, Raffaella; Brez, Alessandro; Bucciantini, Niccolò; Capitanio, Fiamma; Castellano, Simone; Cavazzuti, Elisabetta; Chen, Chien-Ting; Ciprini, Stefano; Costa, Enrico; De Rosa, Alessandra; Del Monte, Ettore; Di Gesu, Laura; Di Lalla, Niccolò; Donnarumma, Immacolata; Dovčiak, Michal; Ehlert, Steven R.; Enoto, Teruaki; Evangelista, Yuri; Fabiani, Sergio; Ferrazzoli, Riccardo; Garcia, Javier A.; Gunji, Shuichi; Hayashida, Kiyoshi; Iwakiri, Wataru; Jorstad, Svetlana G.; Karas, Vladimir; Kislat, Fabian; Kitaguchi, Takao; Kolodziejczak, Jeffery J.; Latronico, Luca; Maldera, Simone; Manfreda, Alberto; Marin, Frédéric; Marinucci, Andrea; Marscher, Alan P.; Marshall, Herman L.; Massaro, Francesco; Matt, Giorgio; Mitsuishi, Ikuyuki; Mizuno, Tsunefumi; Muleri, Fabio; Negro, Michela; Ng, Chi-Yung; O'Dell, Stephen L.; Omodei, Nicola; Oppedisano, Chiara; Papitto, Alessandro; Peirson, Abel L.; Perri, Matteo; Pesce-Rollins, Melissa; Petrucci, Pierre-Olivier; Pilia, Maura; Possenti, Andrea; Puccetti, Simonetta; Ramsey, Brian D.; Rankin, John; Ratheesh, Ajay; Roberts, Oliver J.; Romani, Roger W.; Sgrò, Carmelo; Slane, Patrick; Soffitta, Paolo; Spandre, Gloria; Swartz, Douglas A.; Tamagawa, Toru; Tavecchio, Fabrizio; Taverna, Roberto; Tawara, Yuzuru; Tennant, Allyn F.; Thomas, Nicholas E.; Tombesi, Francesco; Trois, Alessio; Turolla, Roberto; Vink, Jacco; Wu, Kinwah; Xie, Fei


  • X-Ray and Multiwavelength Polarization of Mrk 501 from 2022 to 2023  (2024)  
    • Astrophysical Journal
     Chen, Chien-Ting J.; Liodakis, Ioannis; Middei, Riccardo; Kim, Dawoon E.; Di Gesu, Laura; Di Marco, Alessandro; Ehlert, Steven R.; Errando, Manel; Negro, Michela; Jorstad, Svetlana G.; Marscher, Alan P.; Wu, Kinwah; Agudo, Iván; Poutanen, Juri; Mizuno, Tsunefumi; Kouch, Pouya M.; Lindfors, Elina; Borman, George A.; Grishina, Tatiana S.; Kopatskaya, Evgenia N.; Larionova, Elena G.; Morozova, Daria A.; Savchenko, Sergey S.; Troitsky, Ivan S.; Troitskaya, Yulia V.; Vasilyev, Andrey A.; Zhovtan, Alexey V.; Aceituno, Francisco José; Bonnoli, Giacomo; Casanova, Víctor; Escudero, Juan; Agís-González, Beatriz; Husillos, César; Otero, Santos Jorge; Sota, Alfredo; Piirola, Vilppu; Myserlis, Ioannis; Angelakis, Emmanouil; Kraus, Alexander; Gurwell, Mark; Keating, Garrett; Rao, Ramprasad; Kang, Sincheol; Lee, Sang-Sung; Kim, Sang-Hyun; Cheong, Whee Yeon; Jeong, Hyeon-Woo; Song, Chanwoo; Berdyugin, Andrei V.; Kagitani, Masato; Kravtsov, Vadim; Nitindala, Anagha P.; Sakanoi, Takeshi; Imazawa, Ryo; Sasada, Mahito; Fukazawa, Yasushi; Kawabata, Koji S.; Uemura, Makoto; Nakaoka, Tatsuya; Akitaya, Hiroshi; Casadio, Carolina; Sievers, Albrecht; Antonelli, Lucio Angelo; Bachetti, Matteo; Baldini, Luca; Baumgartner, Wayne H.; Bellazzini, Ronaldo; Bianchi, Stefano; Bongiorno, Stephen D.; Bonino, Raffaella; Brez, Alessandro; Bucciantini, Niccoló; Capitanio, Fiamma; Castellano, Simone; Cavazzuti, Elisabetta; Ciprini, Stefano; Costa, Enrico; De Rosa, Alessandra; Del Monte, Ettore; Di Lalla, Niccoló; Donnarumma, Immacolata; Doroshenko, Victor; Dovčiak, Michal; Enoto, Teruaki; Evangelista, Yuri; Fabiani, Sergio; Ferrazzoli, Riccardo; Garcia, Javier A.; Gunji, Shuichi; Hayashida, Kiyoshi; Heyl, Jeremy; Iwakiri, Wataru; Kaaret, Philip; Karas, Vladimir; Kislat, Fabian; Kitaguchi, Takao; Kolodziejczak, Jeffery J.; Krawczynski, Henric; La Monaca, Fabio; Latronico, Luca; Maldera, Simone; Manfreda, Alberto; Marin, Frédéric; Marinucci, Andrea; Marshall, Herman L.; Massaro, Francesco; Matt, Giorgio; Mitsuishi, Ikuyuki; Muleri, Fabio; Ng, C.-Y.; O’Dell, Stephen L.; Omodei, Nicola; Oppedisano, Chiara; Papitto, Alessandro; Pavlov, George G.; Peirson, Abel Lawrence; Perri, Matteo; Pesce-Rollins, Melissa; Petrucci, Pierre-Olivier; Pilia, Maura; Possenti, Andrea; Puccetti, Simonetta; Ramsey, Brian D.; Rankin, John; Ratheesh, Ajay; Roberts, Oliver J.; Romani, Roger W.; Sgró, Carmelo; Slane, Patrick; Soffitta, Paolo; Spandre, Gloria; Swartz, Douglas A.; Tamagawa, Toru; Tavecchio, Fabrizio; Taverna, Roberto; Tawara, Yuzuru; Tennant, Allyn F.; Thomas, Nicholas E.; Tombesi, Francesco; Trois, Alessio; Tsygankov, Sergey S.; Turolla, Roberto; Vink, Jacco; Weisskopf, Martin C.; Xie, Fei; Zane, Silvia


  • Discovery of magnetic fields in five DC white dwarfs  (2023)  
    • Astronomy and Astrophysics
     Berdyugin Andrei V., Piirola Vilppu, Bagnulo Stefano, Landstreet John D., Berdyugina Svetlana V.


  • High-precision broadband linear polarimetry of early-type binaries : III. AO Cassiopeiae revisited  (2023)  
    • Astronomy and Astrophysics
     Qadir Yasir A, Berdyugin Andrei V, Piirola Vilppu, Sakanoi Takeshi, Kagitani Masato


  • High-precision broadband linear polarimetry of early-type binaries: IV. The DH Cephei binary system in the open cluster of NGC 7380  (2023)  
    • Astronomy and Astrophysics
     Abdul Qadir Yasir, Berdyugin Andrei V., Piirola Vilppu, Sakanoi Takeshi, Kagitani Masato


  • Limiting the accretion disc light in two mass transferring hot subdwarf binaries  (2023)  
    • Monthly Notices of the Royal Astronomical Society
     Deshmukh Kunal, Kupfer Thomas, Hakala Pasi, Bauer Evan B, Berdyugin Andrei, Bildsten Lars, Marsh Thomas R, Mereghetti Sandro, Piirola Vilppu


  • Optical polarization monitoring of the black-hole candidate Swift J1727.8-1613 #16245  (2023)  Astronomer’s Telegram Kravtsov V., Nitindala A. P., Veledina A., Berdyugin A., Poutanen J., Piirola V.


  • Peering into the tilted heart of Cyg X-1 with high-precision optical polarimetry  (2023)  
    • Astronomy and Astrophysics
     Kravtsov Vadim, Veledina Alexandra, Berdyugin Andrei V., Zdziarski Andrzej A., Henson Gary D., Piirola Vilppu, Sakanoi Takeshi, Kagitani Masato, Berdyugina Svetlana V., Poutanen Juri


  • 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



Last updated on 2023-12-07 at 11:58