Pasi Hakala
 


pahakala@utu.fi

Vesilinnantie 5

Turku

Publications
  
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  • A Link Between White Dwarf Pulsars and Polars: Multiwavelength Observations of the 9.36-minute Period Variable Gaia22ayj  (2025)  
    • Publications of the Astronomical Society of the Pacific
     Rodriguez, Antonio C.; El-Badry, Kareem; Hakala, Pasi; Rodriguez-Gil, Pablo; Bao, Tong; Galiullin, Ilkham; Kurlander, Jacob A.; Law, Casey J.; Pelisoli, Ingrid; Schreiber, Matthias R.; Burdge, Kevin; Caiazzo, Ilaria; van Roestel, Jan; Szkody, Paula; Drake, Andrew J.; Buckley, David A. H.; Potter, Stephen B.; Gaensicke, Boris; Mori, Kaya; Bellm, Eric C.; Kulkarni, Shrinivas R.; Prince, Thomas A.; Graham, Matthew; Kasliwal, Mansi M.; Rose, Sam; Sharma, Yashvi; Ahumada, Tomas; Anand, Shreya; Viitanen, Akke; Wold, Avery; Chen, Tracy X.; Riddle, Reed; Smith, Roger
    (    A1 Refereed original research article in a scientific journal)


  • Analysis of optical spectroscopy and photometry of the type I X-ray bursting system UW CrB  (2025)  
    • Open journal of astrophysics
     Kennedy, Mark R.; Callanan, P.; Garnavich, P. M.; Breton, R. P.; Brown, A. J.; Segura, N. Castro; Dhillon, V. S.; Dyer, M. J.; Fijma, S.; Garbutt, J.; Green, M. J.; Hakala, P.; Jiminez-Ibarra, F.; Kerry, P.; Littlefair, S.; Munday, J.; Mason, P. A.; Mata-Sanchez, D.; Munoz-Darias, T.; Parsons, S.; Pelisoli, I.; Sahman, D.
    (    A1 Refereed original research article in a scientific journal)


  • ASASSN-14dx: a cataclysmic variable harbouring a massive pulsating white dwarf  (2025)  
    • Monthly Notices of the Royal Astronomical Society
     Hakala, Pasi; Pelisoli, Ingrid; Gänsicke, Boris T.; Rodríguez-Gil, Pablo; Marsh, Thomas R.; Breedt, Elmé; Thorstensen, John R.; Pala, Anna F.
    (    A1 Refereed original research article in a scientific journal)


  • Discovery of two new polars evolved past the period bounce  (2025)  
    • Monthly Notices of the Royal Astronomical Society
     Cunningham, Tim; Caiazzo, Ilaria; Sienkiewicz, Gracjan; Wheatley, Peter J.; Gänsicke, Boris T.; El-Badry, Kareem; Arcodia, Riccardo; Charbonneau, David; Connor, Liam; De, Kishalay; Hakala, Pasi; Kenyon, Scott J.; Maheshwari, Sumit Kumar; Rodriguez, Antonio C.; van Roestel, Jan; Tremblay, Pier-Emmanuel
    (    A1 Refereed original research article in a scientific journal)


  • V Sge: supersoft source or exotic hot binary? - I. An X-Shooter campaign in the high state  (2025)  
    • Monthly Notices of the Royal Astronomical Society
     Hakala, Pasi; Charles, Phil; Rodríguez-Gil, Pablo
    (    A1 Refereed original research article in a scientific journal)


  • Characterizing high and low accretion states in VY Scl CVs using ZTF and TESS data  (2024)  
    • Monthly Notices of the Royal Astronomical Society
     Duffy, C.; Wu, Kinwah; Ramsay, G.; Wood, Matt A.; Mason, Paul A.; Hakala, Pasi; Steeghs, D.
    (    A1 Refereed original research article in a scientific journal)


  • Insights into the broadband emission of the TeV blazar Mrk 501 during the first X-ray polarization measurements  (2024)  
    • Astronomy and Astrophysics
     Abe, S.; Abhir, J.; Acciari, V. A.; Aguasca-Cabot, A.; Agudo, I.; Aniello, T.; Ansoldi, S.; Antonelli, L. A.; Arbet Engels, A.; Arcaro, C.; Asano, K.; Babić, A.; Baquero, A.; Barres De Almeida, U.; Barrio, J. A.; Batković, I.; Bautista, A.; Baxter, J.; Becerra González, J.; Bednarek, W.; Bernardini, E.; Bernardos, M.; Bernete, J.; Berti, A.; Besenrieder, J.; Bigongiari, C.; Biland, A.; Blanch, O.; Bonnoli, G.; Bošnjak, Ž.; Burelli, I.; Busetto, G.; Campoy-Ordaz, A.; Carosi, A.; Carosi, R.; Carretero-Castrillo, M.; Castro-Tirado, A. J.; Ceribella, G.; Chai, Y.; Cifuentes, A.; Colombo, E.; Contreras, J. L.; Cortina, J.; Covino, S.; D'Amico, G.; D'Elia, V.; Da Vela, P.; Dazzi, F.; De Angelis, A.; De Lotto, B.; De Menezes, R.; Del Popolo, A.; Delfino, M.; Delgado, J.; Delgado Mendez, C.; Di Pierro, F.; Di Venere, L.; Dominis Prester, D.; Donini, A.; Dorner, D.; Doro, M.; Elsaesser, D.; Emery, G.; Escudero, J.; Fariña, L.; Fattorini, A.; Foffano, L.; Font, L.; Fröse, S.; Fukazawa, Y.; García López, R. J.; Garczarczyk, M.; Gasparyan, S.; Gaug, M.; Giesbrecht Paiva, J. G.; Giglietto, N.; Giordano, F.; Gliwny, P.; Godinović, N.; Gradetzke, T.; Grau, R.; Green, D.; Green, J. G.; Günther, P.; Hadasch, D.; Hahn, A.; Hassan, T.; Heckmann, L.; Herrera, J.; Hrupec, D.; Hütten, M.; Imazawa, R.; Ishio, K.; Jiménez Martínez, I.; Kayanoki, T.; Kerszberg, D.; Kluge, G. W.; Kobayashi, Y.; Kouch, P. M.; Kubo, H.; Kushida, J.; Láinez Lezáun, M.; Lamastra, A.; Leone, F.; Lindfors, E.; Linhoff, L.; Lombardi, S.; Longo, F.; López-Coto, R.; López-Moya, M.; López-Oramas, A.; Loporchio, S.; Lorini, A.; Lyard, E.; MacHado De Oliveira Fraga, B.; Majumdar, P.; Makariev, M.; Maneva, G.; Mang, N.; Manganaro, M.; Mangano, S.; Mannheim, K.; Mariotti, M.; Martínez, M.; Martínez-Chicharro, M.; Mas-Aguilar, A.; Mazin, D.; Menchiari, S.; Mender, S.; Miceli, D.; Miener, T.; Miranda, J. M.; Mirzoyan, R.; Molero González, M.; Molina, E.; Mondal, H. A.; Moralejo, A.; Morcuende, D.; Nakamori, T.; Nanci, C.; Neustroev, V.; Nigro, C.; Nikolić, L.; Nilsson, K.; Nishijima, K.; Njoh Ekoume, T.; Noda, K.; Nozaki, S.; Ohtani, Y.; Okumura, A.; Otero-Santos, J.; Paiano, S.; Palatiello, M.; Paneque, D.; Paoletti, R.; Paredes, J. M.; Peresano, M.; Persic, M.; Pihet, M.; Pirola, G.; Podobnik, F.; Prada Moroni, P. G.; Prandini, E.; Principe, G.; Priyadarshi, C.; Rhode, W.; Ribó, M.; Rico, J.; Righi, C.; Sahakyan, N.; Saito, T.; Satalecka, K.; Saturni, F. G.; Schleicher, B.; Schmidt, K.; Schmuckermaier, F.; Schubert, J. L.; Schweizer, T.; Sciaccaluga, A.; Silvestri, G.; Sitarek, J.; Sobczynska, D.; Spolon, A.; Stamerra, A.; Strišković, J.; Strom, D.; Suda, Y.; Suutarinen, S.; Tajima, H.; Takahashi, M.; Takeishi, R.; Tavecchio, F.; Temnikov, P.; Terauchi, K.; Terzić, T.; Teshima, M.; Tosti, L.; Truzzi, S.; Tutone, A.; Ubach, S.; Van Scherpenberg, J.; Ventura, S.; Viale, I.; Vigorito, C. F.; Vitale, V.; Vovk, I.; Walter, R.; Will, M.; Wunderlich, C.; Yamamoto, T.; Liodakis, I.; Aceituno, F. J.; Agís-González B.; Akitaya, H.; Bernardos, M. I.; Blinov, D.; Bourbah, I. G.; Casadio, C.; Casanova, V.; D'Ammando, F.; Fallah Ramazani, V.; Fernández-García, E.; Fukazawa, Y.; García-Comas, M.; Gau, E.; Gokus, A.; Gurwell, M.; Hakala, P.; Hovatta, T.; Hu, Y. D.; Husillos, C.; Jormanainen, J.; Jorstad, S. G.; Kawabata, K. S.; Keating, G. K., Kiehlmann, S.; Kontopodis, E.; Krawczynski, H.; Lähteenmäki, A.; Leto, C.; Lisalda, L.; Mandarakas, N.; Marchini, A.; Marscher, A. P.; Max-Moerbeck, W.; Middei, R.; Mizuno, T.; Myserlis, I.; Nakaoka, T.; Perri, M.; Puccetti, S.; Rao, R.; Readhead, A. C. S.; Reeves, R.; Rodriguez Cavero, N.; Salomé, Q.; Sasada, M.; Skalidis, R.; Sota, A.; Syrjärinne, I.; Tornikoski, M.; Uemura, M.; Verrecchia, F.; Vervelaki, A.
    (    A1 Refereed original research article in a scientific journal)


  • Searching for the stellar cycles of low-mass stars using TESS data  (2024)  
    • Astronomy and Astrophysics
     Ramsay, Gavin; Hakala, Pasi; Gerry, Doyle J.
    (    A1 Refereed original research article in a scientific journal)


  • TESS Photometry of AM Her and AR UMa: Binary Parameters, Cyclotron Emission Modeling, and Mass Transfer Duty Cycles  (2024)  
    • Astrophysical Journal
     Mason, Paul A.; Hakala, Pasi; Wu, Kinwah; Barrett, Paul E.; Iłkiewicz, Krystian; Littlefield, Colin; Monroy, Lorena C.; Sezer, Hasan C.; Jablonski, Francisco; Garnavich, Peter; Szkody, Paula; Ramsay, Gavin; Duffy, Christopher; Scaringi, Simone
    (    A1 Refereed original research article in a scientific journal)


  • The mass of the white dwarf in YY Dra (=DO Dra): Dynamical measurement and comparative study with X-ray estimates  (2024)  
    • Astronomy and Astrophysics
     Álvarez-Hernández, A.; Torres, M. A. P.; Shahbaz, T.; Rodriguez-Gil, P.; Gazeas, K. D.; Sánchez-Sierras, J.; Jonker, P. G.; Corral-Santana, J. M.; Acosta-Pulido, J. A.; Hakala, P.
    (    A1 Refereed original research article in a scientific journal)


  • Dynamical mass of the white dwarf in XY Ari: a test for intermediate polar X-ray spectral models  (2023)  
    • Monthly Notices of the Royal Astronomical Society
     Álvarez-Hernández A., Torres M.A.P., Rodríguez-Gil P., Shahbaz T, Sánchez-Sierras J., Acosta-Pulido J.A., Jonker P.G., Gazeas K.D., Hakala P., Corral-Santana J.M.
    (    A1 Refereed original research article in a scientific journal)


  • 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
    (    A1 Refereed original research article in a scientific journal)


  • Two decades of optical timing of the shortest-period binary star system HM Cancri  (2023)  
    • Monthly Notices of the Royal Astronomical Society
     Munday James, Marsh T R, Hollands Mark, Pelisoli Ingrid, Steeghs Danny, Hakala Pasi, Breedt Elmé, Brown Alex, Dhillon V S, Dyer Martin J, Green Matthew, Kerry Paul, Littlefair S P, Parsons Steven G, Sahman Dave, Somjit Sorawit, Sukaum Boonchoo, Wild James
    (    A1 Refereed original research article in a scientific journal)


  • A Magnetic Valve at L1 Revealed in TESS Photometry of the Asynchronous Polar BY Cam  (2022)  
    • Astrophysical Journal
     Mason Paul A, Littlefield Colin, Monroy Lorena C, Morales John F, Hakala Pasi, Garnavich Peter, Szkody Paula, Kennedy Mark R, Ramsay Gavin, Scaringi Simone
    (    A1 Refereed original research article in a scientific journal)


  • A TESS search for donor-star pulsations in high-mass X-ray binaries  (2022)  
    • Monthly Notices of the Royal Astronomical Society
     Ramsay Gavin, Hakala Pasi, Charles Philip A.
    (    A1 Refereed original research article in a scientific journal)


  • Circular polarimetry of suspect wind-accreting magnetic pre-polars  (2022)  
    • Monthly Notices of the Royal Astronomical Society
     Hakala Pasi, Parsons Steven G., Marsh Thomas R., Gansicke Boris T., Ramsay Gavin, Schwope Axel, Hermes J. J.
    (    A1 Refereed original research article in a scientific journal)


  • CoBiToM Project - II: Evolution of contact binary systems close to the orbital period cut-off  (2022)  
    • Monthly Notices of the Royal Astronomical Society
     Loukaidou G. A., Gazeas K. D., Palafouta S., Athanasopoulos D., Zola S., Liakos A., Niarchos P. G., Hakala P., Essam A., Hatzidimitriou D.
    (    A1 Refereed original research article in a scientific journal)


  • Erratum: Circular polarimetry of suspect wind-accreting magnetic pre-polars (vol 513, pg 3858, 2022)  (2022)  
    • Monthly Notices of the Royal Astronomical Society
     Hakala Pasi, Parsons Steven G., Marsh Thomas R., Gansicke Boris T., Ramsay Gavin, Schwope Axel, Hermes J.J.
    (    Other publication)


  • Short-duration accretion states of Polars as seen in TESS and ZTF data  (2022)  
    • Monthly Notices of the Royal Astronomical Society
     Duffy C, Ramsay G, Wu K, Mason PA, Hakala P, Steeghs D, Wood MA
    (    A1 Refereed original research article in a scientific journal)


  • The puzzling story of flare inactive ultra fast rotating m dwarfs. I. exploring their magnetic fields  (2022)  
    • Monthly Notices of the Royal Astronomical Society
     Doyle Lauren, Bagnulo Stefano, Ramsay Gavin, Doyle J. Gerry, Hakala Pasi
    (    A1 Refereed original research article in a scientific journal)



Last updated on 12/07/2023 12:43:40 PM