Kaj
Wiik
Senior Research Fellow, Tuorla Observatory

Contact

+358 29 450 4511
+358 50 413 7918
Vesilinnantie 5
20500
Turku

Publications

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First Sagittarius A* Event Horizon Telescope Results. II. EHT and Multiwavelength Observations, Data Processing, and Calibration (2022)

Astrophysical Journal Letters
Event Horizon Telescope Collaboration, Akiyama Kazunori, Alberdi Antxon, Alef Walter, Algaba Juan Carlos, Anantua Richard, Asada Keiichi, Azulay Rebecca, Bach Uwe, Baczko Anne-Kathrin, Ball David, Baloković Mislav, Barrett John, Bauböck Michi, Benson Bradford A., Bintley Dan, Blackburn Lindy, Blundell Raymond, Bouman Katherine L., Bower Geoffrey C., Boyce Hope, Bremer Michael, Brinkerink Christiaan D., Brissenden Roger, Britzen Silke, Broderick Avery E., Broguiere Dominique, Bronzwaer Thomas, Bustamante Sandra, Byun Do-Young, Carlstrom John E., Ceccobello Chiara, Chael Andrew, Chan Chi-kwan, Chatterjee Koushik, Chatterjee Shami, Chen Ming-Tang, Chen Yongjun, Cheng Xiaopeng, Cho Ilje, Christian Pierre, Conroy Nicholas S., Conway John E., Cordes James M., Crawford Thomas M., Crew Geoffrey B., Cruz-Osorio Alejandro, Cui Yuzhu, Davelaar Jordy, De Laurentis Mariafelicia, Deane Roger, Dempsey Jessica, Desvignes Gregory, Dexter Jason, Dhruv Vedant, Doeleman Sheperd S., Dougal Sean, Dzib Sergio A., Eatough Ralph P., Emami Razieh, Falcke Heino, Farah Joseph, Fish Vincent L., Fomalont Ed, Ford H. Alyson, Fraga-Encinas Raquel, Freeman William T., Friberg Per, Fromm Christian M., Fuentes Antonio, Galison Peter, Gammie Charles F., García Roberto, Gentaz Olivier, Georgiev Boris, Goddi Ciriaco, Gold Roman, Gómez-Ruiz Arturo I., Gómez José L., Gu Minfeng, Gurwell Mark, Hada Kazuhiro, Haggard Daryl, Haworth Kari, Hecht Michael H., Hesper Ronald, Heumann Dirk, Ho Luis C., Ho Paul, Honma Mareki, Huang Chih-Wei L., Huang Lei, Hughes David H., Ikeda Shiro, Impellizzeri C. M. Violette, Inoue Makoto, Issaoun Sara, James David J., Jannuzi Buell T., Janssen Michael, Jeter Britton, Jiang Wu, Jiménez-Rosales Alejandra, Johnson Michael D., Jorstad Svetlana, Joshi Abhishek V., Jung Taehyun, Karami Mansour, Karuppusamy Ramesh, Kawashima Tomohisa, Keating Garrett K., Kettenis Mark, Kim Dong-Jin, Kim Jae-Young, Kim Jongsoo, Kim Junhan, Kino Motoki, Koay Jun Yi, Kocherlakota Prashant, Kofuji Yutaro, Koch Patrick M., Koyama Shoko, Kramer Carsten, Kramer Michael, Krichbaum Thomas P., Kuo Cheng-Yu, La Bella Noemi, Lauer Tod R., Lee Daeyoung, Lee Sang-Sung, Leung Po Kin, Levis Aviad, Li Zhiyuan, Lico Rocco, Lindahl Greg, Lindqvist Michael, Lisakov Mikhail, Liu Jun, Liu Kuo, Liuzzo Elisabetta, Lo Wen-Ping, Lobanov Andrei P., Loinard Laurent, Lonsdale Colin J., Lu Ru-Sen, Mao Jirong, Marchili Nicola, Markoff Sera, Marrone Daniel P., Marscher Alan P., Martí-Vidal Iván, Matsushita Satoki, Matthews Lynn D., Medeiros Lia, Menten Karl M., Michalik Daniel, Mizuno Izumi, Mizuno Yosuke, Moran James M., Moriyama Kotaro, Moscibrodzka Monika, Müller Cornelia, Mus Alejandro, Musoke Gibwa, Myserlis Ioannis, Nadolski Andrew, Nagai Hiroshi, Nagar Neil M., Nakamura Masanori, Narayan Ramesh, Narayanan Gopal, Natarajan Iniyan, Nathanail Antonios, Navarro Fuentes Santiago, Neilsen Joey, Neri Roberto, Ni Chunchong, Noutsos Aristeidis, Nowak Michael A., Oh Junghwan, Okino Hiroki, Olivares Héctor, Ortiz-León Gisela N., Oyama Tomoaki, Özel Feryal, Palumbo Daniel C. M., Paraschos Georgios Filippos, Park Jongho, Parsons Harriet, Patel Nimesh, Pen Ue-Li, Pesce Dominic W., Piétu Vincent, Plambeck Richard, PopStefanija Aleksandar, Porth Oliver, Pötzl Felix M., Prather Ben, Preciado-López Jorge A., Psaltis Dimitrios, Pu Hung-Yi, Ramakrishnan Venkatessh, Rao Ramprasad, Rawlings Mark G., Raymond Alexander W., Rezzolla Luciano, Ricarte Angelo, Ripperda Bart, Roelofs Freek, Rogers Alan, Ros Eduardo, Romero-Cañizales Cristina, Roshanineshat Arash, Rottmann Helge, Roy Alan L., Ruiz Ignacio, Ruszczyk Chet, Rygl Kazi L. J., Sánchez Salvador, Sánchez-Argüelles David, Sánchez-Portal Miguel, Sasada Mahito, Satapathy Kaushik, Savolainen Tuomas, Schloerb F. Peter, Schonfeld Jonathan, Schuster Karl-Friedrich, Shao Lijing, Shen Zhiqiang, Small Des, Sohn Bong Won, SooHoo Jason, Souccar Kamal, Sun He, Tazaki Fumie, Tetarenko Alexandra J., Tiede Paul, Tilanus Remo P. J., Titus Michael, Torne Pablo, Traianou Efthalia, Trent Tyler, Trippe Sascha, Turk Matthew, van Bemmel Ilse, van Langevelde Huib Jan, van Rossum Daniel R., Vos Jesse, Wagner Jan, Ward-Thompson Derek, Wardle John, Weintroub Jonathan, Wex Norbert, Wharton Robert, Wielgus Maciek, Wiik Kaj, Witzel Gunther, Wondrak Michael F., Wong George N., Wu Qingwen, Yamaguchi Paul, Yoon Doosoo, Young André, Young Ken, Younsi Ziri, Yuan Feng, Yuan Ye-Fei, Zensus J. Anton, Zhang Shuo, Zhao Guang-Yao, Zhao Shan-Shan, Agurto Claudio, Araneda Juan Pablo, Arriagada Oriel, Bertarini Alessandra, Berthold Ryan, Blanchard Jay, Brown Ken, Cárdenas Mauricio, Cantzler Michael, Caro Patricio, Chuter Tim C., Ciechanowicz Miroslaw, Coulson Iain M., Crowley Joseph, Degenaar Nathalie, Dornbusch Sven, Durán Carlos A., Forster Karl, Geertsema Gertie, González Edouard, Graham Dave, Gueth Frédéric, Han Chih-Chiang, Herrera Cristian, Herrero-Illana Ruben, Heyminck Stefan, Hoge James, Huang Yau-De, Jiang Homin, John David, Klein Thomas, Kubo Derek, Kuroda John, Kwon Caleb, Laing Robert, Liu Ching-Tang, Liu Kuan-Yu, Mac-Auliffe Felipe, Martin-Cocher Pierre, Matulonis Callie, Messias Hugo, Meyer-Zhao Zheng, Montenegro-Montes Francisco, Montgomerie William, Muders Dirk, Nishioka Hiroaki, Norton Timothy J., Olivares Rodrigo, Pérez-Beaupuits Juan Pablo, Parra Rodrigo, Poirier Michael, Pradel Nicolas, Raffin Philippe A., Ramírez Jorge, Reynolds Mark, Saez-Madain Alejandro F., Santana Jorge, Silva Kevin M., Sousa Don, Stahm William, Torstensson Karl, Venegas Paulina, Walther Craig, Wieching Gundolf, Wijnands Rudy, Wouterloot Jan G. A.
(Vertaisarvioitu alkuperäisartikkeli tai data-artikkeli tieteellisessä aikakauslehdessä (A1))

Resolving the Inner Parsec of the Blazar J1924-2914 with the Event Horizon Telescope (2022)

Astrophysical Journal
Issaoun Sara, Wielgus Maciek, Jorstad Svetlana, Krichbaum Thomas P., Blackburn Lindy, Janssen Michael, Chan Chi-kwan, Pesce Dominic W., Gómez José L., Akiyama Kazunori, Mościbrodzka Monika, Martí-Vidal Iván, Chael Andrew, Lico Rocco, Liu Jun, Ramakrishnan Venkatessh, Lisakov Mikhail, Fuentes Antonio, Zhao Guang-Yao, Moriyama Kotaro, Broderick Avery E., Tiede Paul, MacDonald Nicholas R., Mizuno Yosuke, Traianou Efthalia, Loinard Laurent, Davelaar Jordy, Gurwell Mark, Lu Ru-Sen, Alberdi Antxon, Alef Walter, Algaba Juan Carlos, Anantua Richard, Asada Keiichi, Azulay Rebecca, Bach Uwe, Baczko Anne-Kathrin, Ball David, Baloković Mislav, Barrett John, Bauböck Michi, Benson Bradford A., Bintley Dan, Blundell Raymond, Boland Wilfred, Bouman Katherine L., Bower Geoffrey C., Boyce Hope, Bremer Michael, Brinkerink Christiaan D., Brissenden Roger, Britzen Silke, Broguiere Dominique, Bronzwaer Thomas, Bustamante Sandra, Byun Do-Young, Carlstrom John E., Ceccobello Chiara, Chatterjee Koushik, Chatterjee Shami, Chen Ming-Tang, Chen Yongjun, Cho Ilje, Christian Pierre, Conroy Nicholas S., Conway John E., Cordes James M., Crawford Thomas M., Crew Geoffrey B., Cruz-Osorio Alejandro, Cui Yuzhu, De Laurentis Mariafelicia, Deane Roger, Dempsey Jessica, Desvignes Gregory, Dexter Jason, Doeleman Sheperd S., Dhruv Vedant, Quijano Sergio Abraham Dzib, Eatough Ralph P., Emami Razieh, Falcke Heino, Farah Joseph, Fish Vincent L., Fomalont Ed, Ford H. Alyson, Fraga-Encinas Raquel, Freeman William T., Friberg Per, Fromm Christian M., Galison Peter, Gammie Charles F., García Roberto, Gentaz Olivier, Georgiev Boris, Goddi Ciriaco, Gold Roman, Gómez-Ruiz Arturo I., Gu Minfeng, Hada Kazuhiro, Haggard Daryl, Hecht Michael H., Hesper Ronald, Ho Luis C., Ho Paul, Honma Mareki, Huang Chih-Wei L., Huang Lei, Hughes David H., Ikeda Shiro, Impellizzeri C. M. Violette, Inoue Makoto, James David J., Jannuzi Buell T., Jeter Britton, Jiang Wu, Jimenez-Rosales Alejandra, Johnson Michael D., Joshi Abhishek V., Jung Taehyun, Karami Mansour, Karuppusamy Ramesh, Kawashima Tomohisa, Keating Garrett K., Kettenis Mark, Kim Dong-Jin, Kim Jae-Young, Kim Jongsoo, Kim Junhan, Kino Motoki, Koay Jun Yi, Kocherlakota Prashant, Kofuji Yutaro, Koch Patrick M., Koyama Shoko, Kramer Carsten, Kramer Michael, Kuo Cheng-Yu, La Bella Noemi, Lauer Tod R., Lee Daeyoung, Lee Sang-Sung, Leung Po Kin, Levis Aviad, Li Zhiyuan, Lico Rocco, Lindahl Greg, Lindqvist Michael, Liu Kuo, Liuzzo Elisabetta, Lo Wen-Ping, Lobanov Andrei P., Lonsdale Colin, Mao Jirong, Marchili Nicola, Markoff Sera, Marrone Daniel P., Marscher Alan P., Matsushita Satoki, Matthews Lynn D., Medeiros Lia, Menten Karl M., Michalik Daniel, Mizuno Izumi, Mizuno Yosuke, Moran James M., Müller Cornelia, Mus Alejandro, Musoke Gibwa, Myserlis Ioannis, Nadolski Andrew, Nagai Hiroshi, Nagar Neil M., Nakamura Masanori, Narayan Ramesh, Narayanan Gopal, Natarajan Iniyan, Nathanail Antonios, Neilsen Joey, Neri Roberto, Ni Chunchong, Noutsos Aristeidis, Nowak Michael A., Oh Junghwan, Okino Hiroki, Olivares Héctor, Ortiz-León Gisela N., Oyama Tomoaki, Özel Feryal, Palumbo Daniel C. M., Paraschos Georgios Filippos, Park Jongho, Parsons Harriet, Patel Nimesh, Pen Ue-Li, Piétu Vincent, Plambeck Richard, PopStefanija Aleksandar, Porth Oliver, Pötzl Felix M., Prather Ben, Preciado-López Jorge A., Psaltis Dimitrios, Pu Hung-Yi, Rao Ramprasad, Rawlings Mark G., Raymond Alexander W., Rezzolla Luciano, Ricarte Angelo, Ripperda Bart, Roelofs Freek, Rogers Alan, Ros Eduardo, Romero-Canizales Cristina, Roshanineshat Arash, Rottmann Helge, Roy Alan L., Ruiz Ignacio, Ruszczyk Chet, Rygl Kazi L. J., Sánchez Salvador, Sánchez-Arguelles David, Sanchez-Portal Miguel, Sasada Mahito, Satapathy Kaushik, Savolainen Tuomas, Schloerb F. Peter, Schuster Karl-Friedrich, Shao Lijing, Shen Zhiqiang, Small Des, Sohn Bong Won, SooHoo Jason, Souccar Kamal, Sun He, Tazaki Fumie, Tetarenko Alexandra J., Tiede Paul, Tilanus Remo P. J., Titus Michael, Torne Pablo, Trent Tyler, Trippe Sascha, van Bemmel Ilse, van Langevelde Huib Jan, van Rossum Daniel R., Vos Jesse, Wagner Jan, Ward-Thompson Derek, Wardle John, Weintroub Jonathan, Wex Norbert, Wharton Robert, Wiik Kaj, Witzel Gunther, Wondrak Michael, Wong George N., Wu Qingwen, Yamaguchi Paul, Yoon Doosoo, Young André, Young Ken, Younsi Ziri, Yuan Feng, Yuan Ye-Fei, Zensus J. Anton, Zhang Shuo, Zhao Shan-Shan
(Vertaisarvioitu alkuperäisartikkeli tai data-artikkeli tieteellisessä aikakauslehdessä (A1))

The science case and challenges of spaceborne sub-millimeter interferometry: the study case of TeraHertz Exploration and Zooming-in for Astrophysics (THEZA) (2021)

IAF Symposium on Ongoing and Near Future Space Astronomy and Solar-System Science Missions, Proceedings of the International Astronautical Congress
Gurvits L.I., Paragi Z., Amils R.I., van Bemmel I., Boven P., Casasola V., Conway J., Davelaar J., Díez-González M.C., Falcke H., Fender R., Frey S., Fromm C.M., Gallego-Puyol J.D., García-Miró C., Garrett M.A., Giroletti M., Goddi C., Gómez J.L., van der Gucht J., Guirado J.C., Haiman Z., Helmich F., Hudson B., Humphreys E., Impellizzeri V., Janssen M., Johnson M.D., Kovalev Y.Y., Kramer M., Lindqvist M., Linz H., Liuzzo E., Lobanov A.P., López-Fernández I., Malo-Gómez I., Masania K., Mizuno Y., Plavin A.V., Rajan R.T., Rezzolla L., Roelofs F., Ros E., Rygl K.L.J., Savolainen T., Schuster K., Venturi T., Verkouter H., de Vicente P., Visser P.N.A.M., Wiedner M.C., Wielgus M., Wiik K., Zensus J.A.
(Vertaisarvioitu artikkeli konferenssijulkaisussa (A4))

Observational constraints on the optical and near-infrared emission from the neutron star-black hole binary merger candidate S190814bv (2020)

Astronomy and Astrophysics
Ackley K., Amati L., Barbieri C., Bauer F. E., Benetti S., Bernardini M. G., Bhirombhakdi K., Botticella M. T., Branchesi M., Brocato E., Bruun S. H., Bulla M., Campana S., Cappellaro E., Castro-Tirado A. J., Chambers K. C., Chaty S., Chen T. -W., Ciolfi R., Coleiro A. Copperwheat C. M., Covino S., Cutter R., D'Ammando F., D'Avanzo P., De Cesare G., D'Elia V., Della Valle M., Denneau L., De Pasquale M., Dhillon V. S., Dyer M. J., Elias-Rosa N., Evans P. A., Eyles-Ferris R. A. J., Fiore A., Fraser M., Fruchter A. S., Fynbo J. P. U., Galbany L., Gall C., Galloway D. K., Getman F. I., Ghirlanda G., Gillanders J. H., Gomboc A., Gompertz B. P., González-Fernández C., González-Gaitán S., Grado A., Greco G., Gromadzki M., Groot P. J., Gutiérrez C. P., Heikkilä T., Heintz K. E., Hjorth J., Hu Y. -D., Huber M. E., Inserra C., Izzo L., Japelj J., Jerkstrand A., Jin Z. P., Jonker P. G., Kankare E., Kann D. A., Kennedy M., Kim S., Klose S., Kool E. C., Kotak R., Kuncarayakti H., Lamb G. P., Leloudas G., Levan A. J., Longo F., Lowe T. B., Lyman J. D., Magnier E., Maguire K., Maiorano E., Mandel I., Mapelli M., Mattila S., McBrien O. R., Melandri A., Michałowski M. J., Milvang-Jensen B., Moran S., Nicastro L., Nicholl M., Nicuesa Guelbenzu A., Nuttal L., Oates S. R., O'Brien P. T., Onori F., Palazzi E., Patricelli B., Perego A., Torres M. A. P., Perley D. A., Pian E., Pignata G., Piranomonte S., Poshyachinda S., Possenti A., Pumo M. L., Quirola-Vásquez J., Ragosta F., Ramsay G., Rau A., Rest A., Reynolds T. M., Rosetti S. S., Rossi A., Rosswog S., Sabha N. B., Sagués Carracedo A., Salafia O. S., Salmon L., Salvaterra R., Savaglio S., Sbordone L., Schady P., Schipani P., Schultz A. S. B., Schweyer T., Smartt S. J., Smith K. W., Smith M., Sollerman J., Srivastav S., Stanway E. R., Starling R. L. C., Steeghs D., Stratta G., Stubbs C. W., Tanvir N. R., Testa V., Thrane E., Tonry J. L., Turatto M., Ulaczyk K., van der Horst A. J., Vergani S. D., Walton N. A., Watson D., Wiersema K., Wiik K., Wyrzykowski Ł., Yang S., Yi S. -X., Young D. R.
(Vertaisarvioitu alkuperäisartikkeli tai data-artikkeli tieteellisessä aikakauslehdessä (A1))

ePESSTO spectroscopic classification of optical transients #12096 (2018)

Moran S., Reynolds T., Harmanen J., Kuncarayakti H., Wiik K., Kankare E., Mattila S., Cartier R., Dennefeld M., Taubenberger S., Benetti S., Della Valle M., Inserra C., Maguire K., Smartt S. J., Yaron O., Young D. R., Manulis I.
(D2 Artikkeli ammatillisessa kokoomateoksessa)

ePESSTO spectroscopic classification of optical transients #12130 (2018)

J. Harmanen, S. Moran, H. Kuncarayakti, T. Reynolds, E. Kankare, S. Mattila, K. Wiik, M. Gromadzki, S. Taubenberger, M. Berton, S. Benetti, E. Congiu, Z. Kostrzewa-Rutkowska, T. Wevers, C. Inserra, K. Maguire, S. J. Smartt, O. Yaron, D. R. Young, I. Manulis
(Artikkeli ammatillisessa kokoomateoksessa (D2))

A dust-enshrouded tidal disruption event with a resolved radio jet in a galaxy merger (2018)

Science
S. Mattila, M. Pérez-Torres, A. Efstathiou, P. Mimica, M. Fraser, E. Kankare, A. Alberdi, M. Á. Aloy, T. Heikkilä, P. G. Jonker, P. Lundqvist, I. Martí-Vidal, W. P. S. Meikle, C. Romero-Cañizales, S. J. Smartt, S. Tsygankov, E. Varenius, A. Alonso-Herrero, M. Bondi, C. Fransson, R. Herrero-Illana, T. Kangas, R. Kotak, N. Ramírez-Olivencia, P. Väisänen, R. J. Beswick, D. L. Clements, R. Greimel, J. Harmanen, J. Kotilainen, K. Nandra, T. Reynolds, S. Ryder, N. A. Walton, K. Wiik, G. Östlin
(Vertaisarvioitu alkuperäisartikkeli tai data-artikkeli tieteellisessä aikakauslehdessä (A1))

ePESSTO spectroscopic classification of optical transients #12107 (2018)

H. Kuncarayakti, T. Reynolds, S. Moran, E. Kankare, J. Harmanen, K. Wiik, R. Cartier, M. Dennefeld, S. Prentice, S. Taubenberger, C. Inserra, K. Maguire, S. J. Smartt, O. Yaron, D. R. Young, I. Manulis, J. Tonry, L. Denneau, A. Heinze, H. Weiland, B. Stalder, A. Rest, O. McBrien, D. E. Wright
(Artikkeli ammatillisessa kokoomateoksessa (D2))