Department of Electronics and Nanoengineering

Radio Astronomy

Radio Astronomy is studied by Anne Lähteenmäki Group that is part of the Department of Electronics and Nanoengineering, Aalto University. The group is located in the Metsähovi Radio Observatory.
Radiotelescope

Radio telescopes are used to probe the sky at radio frequencies. The objects detected range from the Sun to the most distant of all radio sources in the universe, the cosmic microwave background (CMB). Radio frequencies penetrate even the thickest of dust clouds in the Galaxy, and allow us to see what is behind them. For example, the best way to map the structure of the Galaxy is to observe the abundant neutral hydrogen at 1.4 GHz (=21 cm). For more information on radio astronomical observations, see information on research projects at Metsähovi Radio Observatory.

Group members

Latest publications

VHE gamma-ray detection of FSRQ QSO B1420+326 and modeling of its enhanced broadband state in 2020

V. A. Acciari, S. Ansoldi, L. A. Antonelli, A. Arbet Engels, M. Artero, K. Asano, D. Baack, A. Babić, A. Baquero, U. Barres De Almeida, J. A. Barrio, J. Becerra González, W. Bednarek, L. Bellizzi, E. Bernardini, M. Bernardos, A. Berti, J. Besenrieder, W. Bhattacharyya, C. Bigongiari, A. Biland, O. Blanch, G. Bonnoli, A. Bošnjak, G. Busetto, R. Carosi, G. Ceribella, M. Cerruti, Y. Chai, A. Chilingarian, S. Cikota, S. M. Colak, E. Colombo, J. L. Contreras, J. Cortina, S. Covino, G. D'Amico, V. D'Elia, P. Da Vela, F. Dazzi, A. De Angelis, B. De Lotto, M. Delfino, J. Delgado, C. Delgado Mendez, D. Depaoli, F. Di Pierro, L. Di Venere, E. Do Souto Espiñeira, D. Dominis Prester, A. Donini, D. Dorner, M. Doro, D. Elsaesser, V. Fallah Ramazani, A. Fattorini, G. Ferrara, L. Foffano, M. V. Fonseca, L. Font, C. Fruck, S. Fukami, R. J. Garciá López, M. Garczarczyk, S. Gasparyan, M. Gaug, N. Giglietto, F. Giordano, P. Gliwny, N. Godinović, J. G. Green, D. Green, D. Hadasch, A. Hahn, L. Heckmann, J. Herrera, J. Hoang, D. Hrupec, M. Hütten, T. Inada, S. Inoue, K. Ishio, Y. Iwamura, J. Jormanainen, L. Jouvin, Y. Kajiwara, M. Karjalainen, D. Kerszberg, Y. Kobayashi, H. Kubo, J. Kushida, A. Lamastra, D. Lelas, F. Leone, E. Lindfors, S. Lombardi, F. Longo, R. López-Coto, M. López-Moya, A. López-Oramas, S. Loporchio, B. Machado De Oliveira Fraga, C. Maggio, P. Majumdar, M. Makariev, M. Mallamaci, G. Maneva, M. Manganaro, K. Mannheim, L. Maraschi, M. Mariotti, M. Martínez, D. Mazin, S. Mender, S. Micánović, D. Miceli, T. Miener, M. Minev, J. M. Miranda, R. Mirzoyan, E. Molina, A. Moralejo, D. Morcuende, V. Moreno, E. Moretti, V. Neustroev, C. Nigro, K. Nilsson, D. Ninci, K. Nishijima, K. Noda, S. Nozaki, Y. Ohtani, T. Oka, J. Otero-Santos, S. Paiano, M. Palatiello, D. Paneque, R. Paoletti, J. M. Paredes, L. Pavletić, P. Peñil, C. Perennes, M. Persic, P. G. Prada Moroni, E. Prandini, C. Priyadarshi, I. Puljak, W. Rhode, M. Ribó, J. Rico, C. Righi, A. Rugliancich, L. Saha, N. Sahakyan, T. Saito, S. Sakurai, K. Satalecka, F. G. Saturni, B. Schleicher, K. Schmidt, T. Schweizer, J. Sitarek, I. Šnidarić, D. Sobczynska, A. Spolon, A. Stamerra, D. Strom, M. Strzys, Y. Suda, T. Surić, M. Takahashi, F. Tavecchio, P. Temnikov, T. Terzić, M. Teshima, N. Torres-Albà, L. Tosti, S. Truzzi, A. Tutone, J. Van Scherpenberg, G. Vanzo, M. Vazquez Acosta, S. Ventura, V. Verguilov, C. F. Vigorito, V. Vitale, I. Vovk, M. Will, D. Zarić, R. Angioni, F. D'Ammando, S. Ciprini, C. C. Cheung, M. Orienti, L. Pacciani, P. Prajapati, P. Kumar, S. Ganesh, M. Minev, A. Kurtenkov, A. Marchini, L. Carrasco, G. Escobedo, A. Porras, E. Recillas, A. Lähteenmäki, M. Tornikoski, M. Berton, J. Tammi, R. J.C. Vera, S. G. Jorstad, A. P. Marscher, Z. R. Weaver, M. Hart, M. K. Hallum, V. M. Larionov, G. A. Borman, T. S. Grishina, E. N. Kopatskaya, E. G. Larionova, A. A. Nikiforova, D. A. Morozova, S. S. Savchenko, Yu V. Troitskaya, I. S. Troitsky, A. A. Vasilyev, M. Hodges, T. Hovatta, S. Kiehlmann, W. Max-Moerbeck, A. C.S. Readhead, R. Reeves, T. J. Pearson 2021 Astronomy and Astrophysics

Broadband Multi-wavelength Properties of M87 during the 2017 Event Horizon Telescope Campaign

J. C. Algaba, J. Anczarski, K. Asada, M. Baloković, S. Chandra, Y. Z. Cui, A. D. Falcone, M. Giroletti, C. Goddi, K. Hada, D. Haggard, S. Jorstad, A. Kaur, T. Kawashima, G. Keating, J. Y. Kim, M. Kino, S. Komossa, E. V. Kravchenko, T. P. Krichbaum, S. S. Lee, R. S. Lu, M. Lucchini, S. Markoff, J. Neilsen, M. A. Nowak, J. Park, G. Principe, V. Ramakrishnan, M.T. Reynolds, M. Sasada, S. S. Savchenko, K. E. Williamson, Tuomas Savolainen, V. Fallah Ramazani 2021 Astrophysical Journal Letters

THEZA

Leonid I. Gurvits, Zsolt Paragi, Viviana Casasola, John Conway, Jordy Davelaar, Heino Falcke, Rob Fender, Sándor Frey, Christian M. Fromm, Cristina Garcia Miro, Michael A. Garrett, Marcello Giroletti, Ciriaco Goddi, Jose-Luis Gaomez, Jeffrey van der Gucht, Jose Carlos Guirado, Zoltaan Haiman, Frank Helmich, Elizabeth Humphreys, Violette Impellizzeri, Michael Kramer, Michael Lindqvist, Hendrik Linz, Elisabetta Liuzzo, Andrei P. Lobanov, Yosuke Mizuno, Luciano Rezzolla, Freek Roelofs, Eduardo Ros, Kazi L. J. Rygl, Tuomas Savolainen, Karl Schuster, Tiziana Venturi, Martina Wiedner, J. Anton Zensus 2021 Experimental Astronomy

Association of IceCube neutrinos with radio sources observed at Owens Valley and Metsähovi Radio Observatories

T. Hovatta, E. Lindfors, S. Kiehlmann, W. Max-Moerbeck, M. Hodges, I. Liodakis, A. Lähteemäki, T. J. Pearson, A.C.S. Readhead, R. A. Reeves, S. Suutarinen, J. Tammi, M. Tornikoski 2021 Astronomy and Astrophysics

A transition from parabolic to conical shape as a common effect in nearby AGN jets

Y Y Kovalev, A B Pushkarev, E E Nokhrina, A V Plavin, V S Beskin, A V Chernoglazov, M L Lister, Tuomas Savolainen 2021 Monthly Notices of the Royal Astronomical Society

An Oversized Magnetic Sheath Wrapping around the Parsec-scale Jet in 3C 273

M. M. Lisakov, E. V. Kravchenko, A. B. Pushkarev, Y. Y. Kovalev, T. K. Savolainen, M. L. Lister 2021 Astrophysical Journal

The Polarized Image of a Synchrotron-emitting Ring of Gas Orbiting a Black Hole

Ramesh Narayan, Daniel C.M. Palumbo, Michael D. Johnson, Zachary Gelles, Elizabeth Himwich, Dominic O. Chang, Angelo Ricarte, Jason Dexter, Charles F. Gammie, Andrew A. Chael, Kazunori Akiyama, Antxon Alberdi, Walter Alef, Juan Carlos Algaba, Richard Anantua, Keiichi Asada, Rebecca Azulay, Anne Kathrin Baczko, David Ball, Mislav Baloković, John Barrett, Bradford A. Benson, Dan Bintley, Lindy Blackburn, Raymond Blundell, Wilfred Boland, Katherine L. Bouman, Geoffrey C. Bower, Hope Boyce, Michael Bremer, Christiaan D. Brinkerink, Roger Brissenden, Silke Britzen, Avery E. Broderick, Dominique Broguiere, Thomas Bronzwaer, Do Young Byun, John E. Carlstrom, Chi Kwan Chan, Shami Chatterjee, Koushik Chatterjee, Ming Tang Chen, Yongjun Chen, Paul M. Chesler, Ilje Cho, Pierre Christian, John E. Conway, James M. Cordes, Thomas M. Crawford, Geoffrey B. Crew, Alejandro Cruz-Osorio, Yuzhu Cui, Jordy Davelaar, Mariafelicia De Laurentis, Roger Deane, Jessica Dempsey, Gregory Desvignes, Sheperd S. Doeleman, Ralph P. Eatough, Heino Falcke, Joseph Farah, Vincent L. Fish, Ed Fomalont, H. Alyson Ford, Raquel Fraga-Encinas, Per Friberg, Christian M. Fromm, Antonio Fuentes, Peter Galison, Roberto García, Olivier Gentaz, Boris Georgiev, Ciriaco Goddi, Roman Gold, José L. Gómez, Arturo I. Gómez-Ruiz, Minfeng Gu, Mark Gurwell, Kazuhiro Hada, Daryl Haggard, Michael H. Hecht, Ronald Hesper, Luis C. Ho, Paul Ho, Mareki Honma, Chih Wei L. Huang, Lei Huang, David H. Hughes, Shiro Ikeda, Makoto Inoue, Sara Issaoun, David J. James, Buell T. Jannuzi, Michael Janssen, Britton Jeter, Wu Jiang, Alejandra Jimenez-Rosales, Svetlana Jorstad, Taehyun Jung, Mansour Karami, Ramesh Karuppusamy, Tomohisa Kawashima, Garrett K. Keating, Mark Kettenis, Dong Jin Kim, Jae Young Kim, Jongsoo Kim, Junhan Kim, Motoki Kino, Jun Yi Koay, Yutaro Kofuji, Patrick M. Koch, Shoko Koyama, Michael Kramer, Carsten Kramer, Thomas P. Krichbaum, Cheng Yu Kuo, Tod R. Lauer, Sang Sung Lee, Aviad Levis, Yan Rong Li, Zhiyuan Li, Michael Lindqvist, Rocco Lico, Greg Lindahl, Jun Liu, Kuo Liu, Elisabetta Liuzzo, Wen Ping Lo, Andrei P. Lobanov, Laurent Loinard, Colin Lonsdale, Ru Sen Lu, Nicholas R. Macdonald, Jirong Mao, Nicola Marchili, Sera Markoff, Daniel P. Marrone, Alan P. Marscher, Iván Martí-Vidal, Satoki Matsushita, Lynn D. Matthews, Lia Medeiros, Karl M. Menten, Izumi Mizuno, Yosuke Mizuno, James M. Moran, Kotaro Moriyama, Monika Moscibrodzka, Cornelia Müller, Gibwa Musoke, Alejandro Mus Mejías, Hiroshi Nagai, Neil M. Nagar, Masanori Nakamura, Iniyan Natarajan, Antonios Nathanail, Joey Neilsen, Roberto Neri, Chunchong Ni, Aristeidis Noutsos, Michael A. Nowak, Hiroki Okino, Héctor Olivares, Gisela N. Ortiz-León, Tomoaki Oyama, Feryal Özel, Jongho Park, Nimesh Patel, Ue Li Pen, Dominic W. Pesce, Vincent Piétu, Richard Plambeck, Aleksandar Popstefanija, Oliver Porth, Felix M. Pötzl, Ben Prather, Jorge A. Preciado-López, Dimitrios Psaltis, Hung Yi Pu, Venkatessh Ramakrishnan, Ramprasad Rao, Mark G. Rawlings, Alexander W. Raymond, Luciano Rezzolla, Bart Ripperda, Freek Roelofs, Alan Rogers, Eduardo Ros, Mel Rose, Arash Roshanineshat, Helge Rottmann, Alan L. Roy, Chet Ruszczyk, Kazi L.J. Rygl, Salvador Sánchez, David Sánchez-Arguelles, Mahito Sasada, Tuomas Savolainen, F. Peter Schloerb, Karl Friedrich Schuster, Lijing Shao, Zhiqiang Shen, Des Small, Bong Won Sohn, Jason Soohoo, He Sun, Fumie Tazaki, Alexandra J. Tetarenko, Paul Tiede, Remo P.J. Tilanus, Michael Titus, Kenji Toma, Pablo Torne, Tyler Trent, Efthalia Traianou, Sascha Trippe, Ilse Van Bemmel, Huib Jan Van Langevelde, Daniel R. Van Rossum, Jan Wagner, Derek Ward-Thompson, John Wardle, Jonathan Weintroub, Norbert Wex, Robert Wharton, Maciek Wielgus, George N. Wong, Qingwen Wu, Doosoo Yoon, André Young, Ken Young, Ziri Younsi, Feng Yuan, Ye Fei Yuan, J. Anton Zensus, Guang Yao Zhao, Shan Shan Zhao 2021 Astrophysical Journal

28-40 GHz variability and polarimetry of bright compact sources in the QUIJOTE cosmological fields

Yvette C. Perrott, Marcos Lopez-Caniego, Ricardo T. Genova-Santos, Jose Alberto Rubino-Martin, Mark Ashdown, Diego Herranz, Anne Lahteenmaki, Anthony N. Lasenby, Carlos H. Lopez-Caraballo, Frederick Poidevin, Merja Tornikoski 2021 Monthly Notices of the Royal Astronomical Society

Probing the innermost regions of AGN jets and their magnetic fields with RadioAstron: IV. The quasar 3C 345 at 18 cm: Magnetic field structure and brightness temperature

F. M. Potzl, A. P. Lobanov, E. Ros, J. L. Gomez, G. Bruni, U. Bach, A. Fuentes, L. I. Gurvits, D. L. Jauncey, Y. Y. Kovalev, E. V. Kravchenko, M. M. Lisakov, T. Savolainen, K. V. Sokolovsky, J. A. Zensus 2021 Astronomy and Astrophysics

Observing the Time Evolution of the Multicomponent Nucleus of 3C 84

Brian Punsly, Hiroshi Nagai, Tuomas Savolainen, Monica Orienti 2021 Astrophysical Journal
More information on our research in the Research database.
Research database

Contact:
Associate Professor Anne Lähteenmäki
Email: anne.lahteenmaki at aalto.fi
Tel.:  +358 50 4419 492

Postal address:
Department of Electronics and Nanoengineering
Aalto University Metsähovi Radio Observatory
P.O. Box 13000, 00076 Aalto, Finland

Visiting address:
Metsähovi Radio Observatory
Metsähovintie 114, 02540 Kylmälä

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