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

Multimessenger Characterization of Markarian 501 during Historically Low X-Ray and γ-Ray Activity

H. Abe, S. Abe, V. A. Acciari, I. Agudo, T. Aniello, S. Ansoldi, L. A. Antonelli, A. Arbet-Engels, C. Arcaro, M. Artero, K. Asano, D. Baack, A. Babić, A. Baquero, U. Barres De Almeida, J. A. Barrio, I. Batković, J. Baxter, J. Becerra González, W. Bednarek, E. Bernardini, M. Bernardos, A. Berti, J. Besenrieder, W. Bhattacharyya, C. Bigongiari, A. Biland, O. Blanch, G. Bonnoli, A. Bošnjak, I. Burelli, G. Busetto, R. Carosi, M. Carretero-Castrillo, A. J. Castro-Tirado, G. Ceribella, Y. Chai, A. Chilingarian, S. Cikota, E. Colombo, J. L. Contreras, J. Cortina, S. Covino, G. D'Amico, V. D'Elia, V. Fallah Ramazani, W. Chamani, T. Hovatta, A. Lähteenmäki, M. Tornikoski 2023 Astrophysical Journal, Supplement Series

VERITAS Discovery of Very High Energy Gamma-Ray Emission from S3 1227+25 and Multiwavelength Observations

A. Acharyya, C. B. Adams, A. Archer, P. Bangale, W. Benbow, A. Brill, J. L. Christiansen, A. J. Chromey, M. Errando, A. Falcone, Q. Feng, J. P. Finley, G. M. Foote, L. Fortson, A. Furniss, G. Gallagher, W. Hanlon, D. Hanna, O. Hervet, C. E. Hinrichs, J. Hoang, J. Holder, W. Jin, M. N. Johnson, P. Kaaret, M. Kertzman, D. Kieda, T. K. Kleiner, N. Korzoun, F. Krennrich, M. J. Lang, M. Lundy, G. Maier, C. E. McGrath, M. J. Millard, J. Millis, C. L. Mooney, P. Moriarty, R. Mukherjee, S. O'Brien, R. A. Ong, M. Pohl, E. Pueschel, J. Quinn, K. Ragan, P. T. Reynolds, D. Ribeiro, Talvikki Hovatta, Anne Lähteenmäki, Merja Tornikoski 2023 Astrophysical Journal

Current Status of the EU-VGOS Project

Ezequiel Albentosa, Walter Alef, Simone Bernhardt, Johannes Böhm, Ruben Bolano Gonzalez, Yoon Choi, Thomas Gansmoe, Susana Garcia Espada, Cristina Garcia Niro, Anastasiia Girdiuk, Javier Gonzalz Garcia, Ann Silje Groøslie Wennesland, Jakob Gruber, Rüdiger Haas, Roger Hammargren, Robert Heinkelmann, Frédéric Jaron, Niko Petteri Kareinen, Ann-Silje Kirkvik, Hana Krasna, Elena Martinez, Ivan Marti-Vidal, Axel Meldahl, Alexey Melnikov, Sadegh Modiri, Alexander Neidhardt, Axel Nothnagel, Olivia Panzenböck, Victor Perez, Leonid Petrov, Christian Plötz, Helge Rottmann, Tuomas Savolainen, Matthias Schartner, Harald Schuh, Benedikt Soja, Eskil Varenius, Pablo de Vicente, Jan Wagner 2023 International VLBI Service for Geodesy and Astrometry 2022 General Meeting Proceedings

Time variability of the core-shift effect in the blazar 3C 454.3

Wara Chamani, Tuomas Savolainen, Eduardo Ros, Yuri Y. Kovalev, Kaj Wiik, Anne Lähteenmäki, Merja Tornikoski, Joni Tammi 2023 Astronomy and Astrophysics

An aspherical distribution for the explosive burning ash of core-collapse supernovae

Qiliang Fang, Keiichi Maeda, Hanindyo Kuncarayakti, Takashi Nagao 2023 Nature Astronomy

Filamentary structures as the origin of blazar jet radio variability

Antonio Fuentes, José L. Gómez, José M. Martí, Manel Perucho, Guang Yao Zhao, Rocco Lico, Andrei P. Lobanov, Gabriele Bruni, Yuri Y. Kovalev, Andrew Chael, Kazunori Akiyama, Katherine L. Bouman, He Sun, Ilje Cho, Efthalia Traianou, Teresa Toscano, Rohan Dahale, Marianna Foschi, Leonid I. Gurvits, Svetlana Jorstad, Jae Young Kim, Alan P. Marscher, Yosuke Mizuno, Eduardo Ros, Tuomas Savolainen 2023 Nature Astronomy

The Event Horizon Telescope Image of the Quasar NRAO 530

Svetlana Jorstad, Maciek Wielgus, Rocco Lico, Sara Issaoun, Avery E. Broderick, Dominic W. Pesce, Jun Liu, Guang Yao Zhao, Thomas P. Krichbaum, Lindy Blackburn, Chi Kwan Chan, Michael Janssen, Venkatessh Ramakrishnan, Kazunori Akiyama, Antxon Alberdi, Juan Carlos Algaba, Katherine L. Bouman, Ilje Cho, Antonio Fuentes, José L. Gómez, Mark Gurwell, Michael D. Johnson, Jae Young Kim, Ru Sen Lu, Iván Martí-Vidal, Monika Moscibrodzka, Felix M. Pötzl, Efthalia Traianou, Ilse van Bemmel, Walter Alef, Richard Anantua, Keiichi Asada, Rebecca Azulay, Uwe Bach, Anne Kathrin Baczko, David Ball, Mislav Baloković, John Barrett, Michi Bauböck, Bradford A. Benson, Dan Bintley, Raymond Blundell, Geoffrey C. Bower, Hope Boyce, Michael Bremer, Christiaan D. Brinkerink, Dong Jin Kim, Zhiyuan Li, Tuomas Savolainen, Jan Wagner 2023 Astrophysical Journal

RadioAstron Space VLBI Imaging of the Jet in M87. I. Detection of High Brightness Temperature at 22 GHz

Jae Young Kim, Tuomas Savolainen, Petr Voitsik, Evgeniya V. Kravchenko, Mikhail M. Lisakov, Yuri Y. Kovalev, Hendrik Müller, Andrei P. Lobanov, Kirill V. Sokolovsky, Gabriele Bruni, Philip G. Edwards, Cormac Reynolds, Uwe Bach, Leonid I. Gurvits, Thomas P. Krichbaum, Kazuhiro Hada, Marcello Giroletti, Monica Orienti, James M. Anderson, Sang Sung Lee, Bong Won Sohn, J. Anton Zensus 2023 Astrophysical Journal

Quasi-periodic behaviour in the radio and gamma-ray light curves of blazar PKS 1510-089

XP Li, Y Cai, HY Yang, A Lahteenmaki, M Tornikoski, J Tammi, S Suutarinen, Hai-Tao Yang, YH Luo, LS Wang 2023 Monthly Notices of the Royal Astronomical Society

Radio and γ-Ray Variability in Blazar S5 0716+714: A Year-like Quasi-periodic Oscillation in the Radio Light Curve

Xiao Pan Li, Hai Yan Yang, Yan Cai, Anne Lähteenmäki, Merja Tornikoski, Joni Tammi, Sofia Suutarinen, Hai Tao Yang, Yu Hui Luo, Li Sha Wang 2023 Astrophysical Journal
More information on our research in the Aalto research portal.
Research portal

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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