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)


  • 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 , 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)


  • The puzzling story of flare inactive ultra fast rotating M dwarfs. II. Searching for radial velocity variations  (2022)  
    • Monthly Notices of the Royal Astronomical Society
     Ramsay Gavin, Hakala Pasi, Doyle J. Gerry, Doyle Lauren, Bagnulo Stefano

    (    A1 Refereed original research article in a scientific journal)


  • CoBiToM project - I. Contact binaries towards merging  (2021)  
    • Monthly Notices of the Royal Astronomical Society
     Gazeas KD, Loukaidou GA, Niarchos PG, Palafouta S, Athanasopoulos D, Liakos A, Zola S, Essam A, Hakala P
    (    A1 Refereed original research article in a scientific journal)


  • Detection of an energetic flare from the M5V secondary star in the Polar MQ Dra  (2021)  
    • Monthly Notices of the Royal Astronomical Society
     Ramsay Gavin, Hakala Pasi, Wood Matt A
    (    A1 Refereed original research article in a scientific journal)


  • Optical detection of the rapidly spinning white dwarf in V1460 Her  (2021)  
    • Monthly Notices of the Royal Astronomical Society
     Pelisoli Ingrid, Marsh T.R., Ashley R.P., Hakala Pasi, Aungwerojwit A., Burdge K., Breedt E., Brown A. J., Chanthorn, K., Dhillon V. S., Dyer M. J. Green M. J., Kerry P., Littlefair S. P., Parsons S. G., Sahman, D. I., Wild J. F., Yotthanathong S.
    (    A1 Refereed original research article in a scientific journal)



Last updated on 2023-12-07 at 12:43