Dr Joni Tammi

Staff Scientist

Research outputs

  1. 2019
  2. Published

    Long term variability and correlation study of the blazar 3C 454.3 in radio, NIR and optical wavebands

    Sarkar, A., Chitnis, V. R., Gupta, A. C., Gaur, H., Patel, S. R., Wiita, P. J., Volvach, A. E., Tornikoski, M., Chamani Velasco, W., Enestam, S. & 4 others, Lähteenmäki, A., Tammi, J., Vera Rodríguez, R. & Volvach, L. N., 20 Dec 2019, In : Astrophysical Journal. 887, 2, 185.

    Research output: Contribution to journalArticle

  3. Published

    Cosmological Evolution of Quasar Radio Emission in the View of Multifractality

    Belete, A. B., Femmam, S., Tornikoski, M., Lahteenmaki, A., Tammi, J., Leao, I. C., Martins, B. L. C. & De Medeiros, J. R., 10 Mar 2019, In : Astrophysical Journal. 873, 2, 19 p., 108.

    Research output: Contribution to journalArticle

  4. Published

    Flare Activity of Blazar AO 0235+164

    Volvach, A. E., Volvach, L. N., Larionov, M. G., Lähteenmäki, A., Tornikoski, M., Tammi, J., Järvelä, E., Vera, R. J. C., Chamani, W. & Enestam, S., 1 Mar 2019, In : Cosmic Research. 57, 2, p. 85-90 6 p.

    Research output: Contribution to journalArticle

  5. 2018
  6. Published

    Extreme HBL behavior of Markarian 501 during 2012

    MAGIC Collaboration & VERITAS Collaboration, 1 Dec 2018, In : Astronomy and Astrophysics. 620, A181.

    Research output: Contribution to journalArticle

  7. Published

    Solar observing system for radio frequencies 5–120 MHz

    Kallunki, J., Tornikoski, M., Oinaskallio, E., Kirves, P., Aatrokoski, J., Mujunen, A. & Tammi, J., 1 Nov 2018, In : Astronomische Nachrichten. 339, 9-10, p. 656-660 5 p.

    Research output: Contribution to journalArticle

  8. Published

    The broad-band properties of the intermediate synchrotron peaked BL Lac S2 0109+22 from radio to VHE gamma-rays

    MAGIC Collaboration, Fermi Large Area Telescope Collaboration, Lähteenmäki, A., Tammi, J. & Tornikoski, M., 11 Oct 2018, In : Monthly Notices of the Royal Astronomical Society. 480, 1, p. 879-892 14 p.

    Research output: Contribution to journalArticle

  9. Published

    Characteristics of the Flare Phenomenon in Blazar AO0235+164 in Gamma, Optical, and Radio Bands

    Bychkova, V. S., Volvach, A. E., Volvach, L. N., Kardashev, N. S., Larionov, M. G., Vlasyuk, V. V., Spiridonova, O. I., Lähteenmäki, A., Tornikoski, M., Tammi, J. & 4 others, Järvelä, E., Vera, R. J. C., Chamani, W. & Enestam, S., 1 Jul 2018, In : Astrophysical Bulletin. 73, 3, p. 293-297 5 p.

    Research output: Contribution to journalArticle

  10. Published
  11. Published

    Millimetri, senttimetri, desimetri, metri

    Tammi, J., Apr 2018, In : Tähdet ja Avaruus. 3, p. 49-49 1 p.

    Research output: Contribution to journalArticle

  12. Published

    Far-infrared photometry of OJ 287 with the Herschel Space Observatory

    Kidger, M., Zola, S., Valtonen, M., Lähteenmäki, A., Järvelä, E., Tornikoski, M., Tammi, J., Liakos, A. & Poyner, G., 1 Feb 2018, In : Astronomy and Astrophysics. 610, 7 p., A74.

    Research output: Contribution to journalArticle

  13. Published

    Forty years of solar radio observations at Metsähovi Radio Observatory

    Kallunki, J., Tornikoski, M., Tammi, J., Kinnunen, E., Korhonen, K., Kesäläinen, S. & Arkko, O., 1 Feb 2018, In : Astronomische Nachrichten. 339, 2-3, p. 204-211 8 p.

    Research output: Contribution to journalArticle

  14. Published

    Detection of persistent VHE gamma-ray emission from PKS 1510-089 by the MAGIC telescopes during low states between 2012 and 2017

    MAGIC Collaboration, Fermi-LAT Collaboration, Tornikoski, M., Lähteenmäki, A., Tammi, J. & Ramakrishnan, V., 2018, In : Astronomy and Astrophysics. 619, 12 p., A159.

    Research output: Contribution to journalArticle

  15. 2017
  16. Published

    Blazar spectral variability as explained by a twisted inhomogeneous jet

    Raiteri, C. M., Villata, M., Acosta-Pulido, J. A., Agudo, I., Arkharov, A. A., Bachev, R., Baida, G. V., Benitez, E., Borman, G. A., Boschin, W. & 76 others, Bozhilov, V., Butuzova, M. S., Calcidese, P., Carnerero, M. I., Carosati, D., Casadio, C., Castro-Segura, N., Chen, W. -P., Damljanovic, G., D'Ammando, F., Di Paola, A., Echevarria, J., Efimova, N. V., Ehgamberdiev, S. A., Espinosa, C., Fuentes, A., Giunta, A., Gomez, J. L., Grishina, T. S., Gurwell, M. A., Hiriart, D., Jermak, H., Jordan, B., Jorstad, S. G., Joshi, M., Kopatskaya, E. N., Kuratov, K., Kurtanidze, O. M., Kurtanidze, S. O., Lähteenmaki, A., Larionov, V. M., Larionova, E. G., Larionova, L. V., Lazaro, C., Lin, C. S., Malmrose, M. P., Marscher, A. P., Matsumoto, K., McBreen, B., Michel, R., Mihov, B., Minev, M., Mirzaqulov, D. O., Mokrushina, A. A., Molina, S. N., Moody, J. W., Morozova, D. A., Nazarov, S. V., Nikolashvili, M. G., Ohlert, J. M., Okhmat, D. N., Ovcharov, E., Pinna, F., Polakis, T. A., Protasio, C., Pursimo, T., Redondo-Lorenzo, F. J., Rizzi, N., Rodriguez-Coira, G., Sadakane, K., Sadun, A. C., Samal, M. R., Savchenko, S. S., Semkov, E., Skiff, B. A., Slavcheva-Mihova, L., Smith, P. S., Steele, I. A., Strigachev, A., Tammi, J., Thum, C., Tornikoski, M., Troitskaya, Y. V., Troitsky, I. S., Vasilyev, A. A. & Vince, O., 21 Dec 2017, In : Nature. 552, 7685, p. 374-377 13 p.

    Research output: Contribution to journalArticle

  17. Published

    Simultaneous spectra and radio properties of BL Lacs

    Mingaliev, M., Sotnikova, Y., Mufakharov, T. V., Nieppola, E., Tornikoski, M., Tammi, J., Lähteenmäki, A., Udovitskiy, R. Y. & Erkenov, A. K., 24 Aug 2017, In : Astronomische Nachrichten. 338, 6, p. 700–714 15 p.

    Research output: Contribution to journalArticle

  18. Published

    37 GHz observations of narrow-line Seyfert 1 galaxies

    Lähteenmäki, A., Järvelä, E., Hovatta, T., Tornikoski, M., Harrison, D. L., López-Caniego, M., Max-Moerbeck, W., Mingaliev, M., Pearson, T. J., Ramakrishnan, V. & 5 others, Readhead, A. C. S., Reeves, R. A., Richards, J. L., Sotnikova, Y. & Tammi, J., 1 Jul 2017, In : Astronomy and Astrophysics. 603, 26 p., A100.

    Research output: Contribution to journalArticle

  19. Published

    Kinematics of Parsec-scale Jets of Gamma-Ray Blazars at 43 GHz within the VLBA-BU-BLAZAR Program

    Jorstad, S. G., Marscher, A. P., Morozova, D. A., Troitsky, I. S., Agudo, I., Casadio, C., Foord, A., Gómez, J. L., MacDonald, N. R., Molina, S. N. & 3 others, Lähteenmäki, A., Tammi, J. & Tornikoski, M., 2017, In : Astrophysical Journal. 846, 2, 35 p., 98.

    Research output: Contribution to journalArticle

  20. 2016
  21. Published

    Maailmankaikkeus - uhka vai mahdollisuus?

    Tammi, J., Sep 2016, In : Tähdet ja Avaruus. 6, p. 57-57 1 p.

    Research output: Contribution to journalArticle

  22. Published

    Nonlinear synchrotron self-Compton modelling of blazars

    Anjum, M. S. & Tammi, J., 10 Jun 2016, Aerospace Science and Engineering (ICASE), 2015 Fourth International Conference on. Institute of Electrical and Electronics Engineers, 8 p. 7489524

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  23. Published

    Multiwavelength Study of Quiescent States of Mrk 421 with Unprecedented Hard X-Ray Coverage Provided by NuSTAR in 2013

    NuSTAR Team, VERITAS Collaboration & MAGIC Collaboration, Mar 2016, In : Astrophysical Journal. 819, 2, 30 p., 156.

    Research output: Contribution to journalArticle

  24. Published

    GPS Time Disruptions on 26-Jan-2016

    Mujunen, A., Aatrokoski, J., Tornikoski, M. & Tammi, J., 2016, 15 p. Aalto University.

    Research output: Other contributionScientific

  25. Published

    Insights into the emission of the blazar 1ES 1011+496 through unprecedented broadband observations during 2011 and 2012

    Aleksić, J., Ansoldi, S., Antonelli, L. A., Antoranz, P., Arcaro, C., Babic, A., Bangale, P., Barres De Almeida, U., Barrio, J. A., Becerra González, J. & 154 others, Bednarek, W., Bernardini, E., Biasuzzi, B., Biland, A., Blanch, O., Bonnefoy, S., Bonnoli, G., Borracci, F., Bretz, T., Carmona, E., Carosi, A., Colin, P., Colombo, E., Contreras, J. L., Cortina, J., Covino, S., Da Vela, P., Dazzi, F., De Angelis, A., De Caneva, G., De Lotto, B., De Oña Wilhelmi, E., Delgado Mendez, C., Di Pierro, F., Dominis Prester, D., Dorner, D., Doro, M., Einecke, S., Eisenacher, D., Elsaesser, D., Fernández-Barral, A., Fidalgo, D., Fonseca, M. V., Font, L., Frantzen, K., Fruck, C., Galindo, D., García López, R. J., Garczarczyk, M., Garrido Terrats, D., Gaug, M., Godinović, N., González Muñoz, A., Gozzini, S. R., Hadasch, D., Hanabata, Y., Hayashida, M., Herrera, J., Hose, J., Hrupec, D., Idec, W., Kadenius, V., Kellermann, H., Knoetig, M. L., Kodani, K., Konno, Y., Krause, J., Kubo, H., Kushida, J., La Barbera, A., Lelas, D., Lewandowska, N., Lindfors, E., Lombardi, S., Longo, F., López, M., López-Coto, R., López-Oramas, A., Lorenz, E., Lozano, I., Makariev, M., Mallot, K., Maneva, G., Mannheim, K., Maraschi, L., Marcote, B., Mariotti, M., Martínez, M., Mazin, D., Menzel, U., Miranda, J. M., Mirzoyan, R., Moralejo, A., Munar-Adrover, P., Nakajima, D., Neustroev, V., Niedzwiecki, A., Nievas Rosillo, M., Nilsson, K., Nishijima, K., Noda, K., Orito, R., Overkemping, A., Paiano, S., Palatiello, M., Paneque, D., Paoletti, R., Paredes, J. M., Paredes-Fortuny, X., Persic, M., Poutanen, J., Prada Moroni, P. G., Prandini, E., Puljak, I., Reinthal, R., Rhode, W., Ribó, M., Rico, J., Rodriguez Garcia, J., Saito, T., Saito, K., Satalecka, K., Scalzotto, V., Scapin, V., Schweizer, T., Shore, S. N., Sillanpää, A., Sitarek, J., Snidaric, I., Sobczynska, D., Stamerra, A., Steinbring, T., Strzys, M., Takalo, L., Takami, H., Tavecchio, F., Temnikov, P., Terzić, T., Tescaro, D., Teshima, M., Thaele, J., Torres, D. F., Toyama, T., Treves, A., Vogler, P., Will, M., Zanin, R., Buson, S., D'Ammando, F., Lähteenmäki, A., Hovatta, T., Kovalev, Y. Y., Lister, M. L., Max-Moerbeck, W., Mundell, C., Pushkarev, A. B., Rastorgueva-Foi, E., Readhead, A. C. S., Richards, J. L., Tammi, J., Sanchez, D. A., Tornikoski, M., Savolainen, T. & Steele, I., 2016, In : Astronomy and Astrophysics. 591, 14 p., A10.

    Research output: Contribution to journalArticle

  26. Published

    Planck intermediate results. XLV. Radio spectra of northern extragalactic radio sources

    Planck Collaboration, Ade, P. A. R., Aghanim, N., Aller, H. D., Aller, M. F., Arnaud, M., Aumont, J., Baccigalupi, C., Banday, A. J., Barreiro, R. B. & 177 others, Bartolo, N., Battaner, E., Benabed, K., Benoit-Lévy, A., Bernard, J-P., Bersanelli, M., Bielewicz, P., Bonaldi, A., Bonavera, L., Bond, J. R., Borrill, J., Bouchet, F. R., Burigana, C., Calabrese, E., Catalano, A., Chiang, H. C., Christensen, P. R., Clements, D. L., Colombo, L. P. L., Couchot, F., Crill, B. P., Curto, A., Cuttaia, F., Danese, L., Davies, R. D., Davis, R. J., de Bernardis, P., de Rosa, A., de Zotti, G., Delabrouille, J., Dickinson, C., Diego, J. M., Dole, H., Donzelli, S., Doré, O., Ducout, A., Dupac, X., Efstathiou, G., Elsner, F., Eriksen, H. K., Finelli, F., Forni, O., Frailis, M., Fraisse, A. A., Franceschi, E., Galeotta, S., Galli, S., Ganga, K., Giard, M., Giraud-Héraud, Y., Gjerløw, E., González-Nuevo, J., Górski, K. M., Gruppuso, A., Gurwell, M. A., Hansen, F. K., Harrison, D. L., Henrot-Versillé, S., Hernández-Monteagudo, C., Hildebrandt, S. R., Hobson, M., Hornstrup, A., Hovatta, T., Hovest, W., Huffenberger, K. M., Hurier, G., Jaffe, A. H., Jaffe, T. R., Järvelä, E., Keihänen, E., Keskitalo, R., Kisner, T. S., Kneissl, R., Knoche, J., Kunz, M., Kurki-Suonio, H., Lähteenmäki, A., Lamarre, J-M., Lasenby, A., Lattanzi, M., Lawrence, C. R., Leonardi, R., Levrier, F., Liguori, M., Lilje, P. B., Linden-Vørnle, M., López-Caniego, M., Lubin, P. M., Macías-Pérez, J. F., Maffei, B., Maino, D., Mandolesi, N., Maris, M., Martin, P. G., Martínez-González, E., Masi, S., Matarrese, S., Max-Moerbeck, W., Meinhold, P. R., Melchiorri, A., Mennella, A., Migliaccio, M., Mingaliev, M., Miville-Deschênes, M-A., Moneti, A., Montier, L., Morgante, G., Mortlock, D., Munshi, D., Murphy, J. A., Nati, F., Natoli, P., Nieppola, E., Noviello, F., Novikov, D., Novikov, I., Pagano, L., Pajot, F., Paoletti, D., Partridge, B., Pasian, F., Pearson, T. J., Perdereau, O., Perotto, L., Pettorino, V., Piacentini, F., Piat, M., Pierpaoli, E., Plaszczynski, S., Pointecouteau, E., Polenta, G., Pratt, G. W., Ramakrishnan, V., Rastorgueva-Foi, E. A., S Readhead, A. C., Reinecke, M., Remazeilles, M., Renault, C., Renzi, A., Richards, J. L., Ristorcelli, I., Rocha, G., Rossetti, M., Roudier, G., Rubiño-Martín, J. A., Rusholme, B., Sandri, M., Savelainen, M., Savini, G., Scott, D., Sotnikova, Y., Stolyarov, V., Sunyaev, R., Sutton, D., Suur-Uski, A-S., Sygnet, J-F., Tammi, J., Tauber, J. A., Terenzi, L., Toffolatti, L., Tomasi, M., Tornikoski, M., Tristram, M., Tucci, M., Türler, M., Valenziano, L., Valiviita, J., Valtaoja, E., Van Tent, B., Vielva, P., Villa, F., Wade, L. A., Wehrle, A. E., Wehus, I. K., Yvon, D., Zacchei, A. & Zonca, A., 2016, In : Astronomy & Astrophysics. 596, A106.

    Research output: Contribution to journalArticle

  27. Published

    Supporting reflective learning with online tools

    Kiviluoma, P., Lähteenmäki, A. & Tammi, J., 2016, Proceedings of the Conference SEFI 2016: Engineering Education on Top of the World: Industry University Cooperation. SEFI - European Society For Engineering Education, 9 p.

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  28. 2015
  29. Published

    The WEBT campaign on the BL Lac object PG 1553+113 in 2013. An analysis of the enigmatic synchrotron emission

    Raiteri, C. M., Stamerra, A., Villata, M., Larionov, V. M., Acosta-Pulido, J. A., Arévalo, M. J., Arkharov, A. A., Bachev, R., Benítez, E., Bozhilov, V. V. & 52 others, Borman, G. A., Buemi, C. S., Calcidese, P., Carnerero, M. I., Carosati, D., Chigladze, R. A., Damljanovic, G., Di Paola, A., Doroshenko, V. T., Efimova, N. V., Ehgamberdiev, S. A., Giroletti, M., González-Morales, P. A., Grinon-Marin, A. B., Grishina, T. S., Hiriart, D., Ibryamov, S., Klimanov, S. A., Kopatskaya, E. N., Kurtanidze, O. M., Kurtanidze, S. O., Kurtenkov, A. A., Larionova, L. V., Larionova, E. G., Lázaro, C., Lähteenmäki, A., Leto, P., Markovic, G., Mirzaqulov, D. O., Mokrushina, A. A., Morozova, D. A., Mújica, R., Nazarov, S. V., Nikolashvili, M. G., Ohlert, J. M., Ovcharov, E. P., Paiano, S., Pastor Yabar, A., Prandini, E., Ramakrishnan, V., Sadun, A. C., Semkov, E., Sigua, L. A., Strigachev, A., Tammi, J., Tornikoski, M., Trigilio, C., Troitskaya, Y. V., Troitsky, I. S., Umana, G., Velasco, S. & Vince, O., Nov 2015, In : Monthly Notices of the Royal Astronomical Society. 454, 1, p. 353-367

    Research output: Contribution to journalArticle

  30. Published

    First NuSTAR Observations of Mrk 501 within a Radio to TeV Multi-Instrument Campaign

    NuSTAR Team, MAGIC Collaboration & VERITAS Collaboration, Oct 2015, In : Astrophysical Journal. 812, 1, p. 65

    Research output: Contribution to journalArticle

  31. Published

    Connection between parsec-scale radio jet and gamma-ray flares in the blazar 1156+295

    Ramakrishnan, V., Leon Tavares, J., Rastorgueva-Foi, E. A., Wiik, K., Jorstad, S. G., Marscher, A. P., Tornikoski, M., Agudo, I., Lähteenmäki, A., Valtaoja, E. & 23 others, Aller, M. F., Blinov, D. A., Casadio, C., Efimova, N. V., Gurwell, M. A., Gómez, J. L., Hagen-Thorn, V. A., Joshi, M., Järvelä, E., Konstantinova, T. S., Kopatskaya, E. N., Larionov, V. M., Larionova, E. G., Larionova, L. V., Lavonen, N., MacDonald, N. R., McHardy, I. M., Molina, S. N., Morozova, D. A., Nieppola, E., Tammi, J., Taylor, B. W. & Troitsky, I. S., 2015, 12th European VLBI Network Symposium, Cagliari, Italy, Oct 2014. Scuola Internazionale Superiore di Studi Avanzati (S I S S A), 6 p.

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  32. Published

    Properties of flat-spectrum radio-loud narrow-line Seyfert 1 galaxies

    Foschini, L., Berton, M., Caccianiga, A., Ciroi, S., Cracco, V., Peterson, B. M., Angelakis, E., Braito, V., Fuhrmann, L., Gallo, L. & 20 others, Grupe, D., Järvelä, E., Kaufmann, S., Komossa, S., Kovalev, Y. Y., Lähteenmäki, A., Lisakov, M. M., Lister, M. L., Mathur, S., Richards, J. L., Romano, P., Sievers, A., Tagliaferri, G., Tammi, J., Tibolla, O., Tornikoski, M., Vercellone, S., La Mura, G., Maraschi, L. & Rafanelli, P., 2015, In : Astronomy and Astrophysics. 575, 1, p. p. A13

    Research output: Contribution to journalArticle

  33. Published

    The 2009 multiwavelength campaign on Mrk 421: Variability and correlation studies

    MAGIC Collaboration & VERITAS Collaboration, 2015, In : Astronomy and Astrophysics. 576, p. p. A126

    Research output: Contribution to journalArticle

  34. 2014
  35. Published

    Havaintoja paljaalla mutta kriittisellä silmällä

    Tammi, J., 2014, In : Tähdet ja Avaruus. 5, p. 69

    Research output: Contribution to journalArticle

  36. Published

    Long-term, multi-frequency monitoring of the blazar S0528+134 (Nimfa)

    "Vol'vach", A. E., Kutkin, A. M., Larionov, M. G., "Vol'vach", L. N., Lahteenmaki, A., Tornikoski, M., Tammi, J., Savolainen, P., Aller, M. F., Aller, H. D. & 1 others, Sasada, M., 2014, In : Astronomy Reports. 58, 2, p. 71-77

    Research output: Contribution to journalArticle

  37. Published

    MAGIC gamma-ray and multi-frequency observations of flat spectrum radio quasar PKS 1510-089 in early 2012

    MAGIC Collaboration, AGILE Collaboration & Fermi-LAT Collaboration, 2014, In : Astronomy and Astrophysics. 569, 21 p., A46.

    Research output: Contribution to journalArticle

  38. Published

    MAGIC observations and multifrequency properties of the flat spectrum radio quasar 3C 279 in 2011

    Aleksic, J., Ansoldi, S., Antonelli, L. A., Lähteenmäki, A. & Tammi, J., 2014, In : Astronomy and Astrophysics. 567, A41.

    Research output: Contribution to journalArticle

  39. Published

    The connection between the parsec-scale radio jet and gamma-ray flares in the blazar 1156+295

    Ramakrishnan, V., León-Tavares, J., Rastorgueva-Foi, E. A., Wiik, K., Jorstad, S. G., Marscher, A. P., Tornikoski, M., Agudo, I., Lähteenmäki, A., Valtaoja, E. & 23 others, Aller, M. F., Blinov, D. A., Casadio, C., Efimova, N. V., Gurwell, M. A., Gómez, J. L., Hagen-Thorn, V. A., Joshi, M., Järvelä, E., Konstantinova, T. S., Kopatskaya, E. N., Larionov, V. M., Larionova, E. G., Larionova, L. V., Lavonen, N., MacDonald, N. R., McHardy, I. M., Molina, S. N., Morozova, D. A., Nieppola, E., Tammi, J., Taylor, B. W. & Troitsky, I. S., 2014, In : Monthly Notices of the Royal Astronomical Society. 445, 2

    Research output: Contribution to journalArticle

  40. Published

    The Outburst of the Blazar S4 0954+658 in 2011 March-April

    Morozova, D. A., Larionov, V. M., Troitsky, I. S., Jorstad, S. G., Marscher, A. P., Gómez, J. L., Blinov, D. A., Efimova, N. V., Hagen-Thorn, V. A., Hagen-Thorn, E. I. & 15 others, Joshi, M., Konstantinova, T. S., Kopatskaya, E. N., Larionova, L. V., Larionova, E. G., Lähteenmäki, A., Tammi, J., Rastorgueva-Foi, E., McHardy, I., Tornikoski, M., Agudo, I., Casadio, C., Molina, S. N., Volvach, A. E. & Volvach, L. N., 2014, In : Astrophysical Journal. 148, 3

    Research output: Contribution to journalArticle

  41. 2013
  42. Published

    A prolonged flare in the blazar 3C 454.3

    "Vol'vach", A. E., Kutkin, A. M., Larionov, M. G., "Vol'vach", L. N., Lahteenmaki, A., Tornikoski, M., Tammi, J., Léon-Tavares, J., Järvelä, E., Aller, M. F. & 1 others, Aller, H. D., 2013, In : Astronomy Reports. 57, 1, p. 46-51

    Research output: Contribution to journalArticle

  43. Published

    Basic properties of Narrow-Line Seyfert 1 Galaxies with relativistic jets

    Foschini, L., Angelakis, E., Bonnoli, G., Braito, V., Caccianiga, A., Fuhrmann, L., Gallo, L., Ghirlanda, G., Ghisellini, G., Grupe, D. & 18 others, Hamilton, T., Kaufmann, S., Komossa, S., Kovalev, Y. Y., Lähteenmäki, A., Lister, M. L., Mannheim, K., Maraschi, L., Mathur, S., Peterson, B. M., Romano, P., Severgnini, P., Tagliaferri, G., Tammi, J., Tavecchio, F., Tibolla, O., Tornikoski, M. & Vercellone, S., 2013, In : MEMORIE DELLA SOCIETA ASTRONOMICA ITALIANA. 84, 731, p. 731-732

    Research output: Contribution to journalArticle

  44. Published

    Bottom-up modelling of active galactic nuclei: Using radio observations to understand gamma-ray flaring in relativistic jets from supermassive black holes.

    Tammi, J., 2013, XXXIII Finnish URSI Convention on Radio Science and SMARAD Seminar 2013, Dipoli, Espoo, Finland, 24 - 25.4.2013.. Wallén, H. & Sihvola, A. (eds.). Helsinki, p. 155-158

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  45. Published

    Introducing the CTA concept

    Acharya, B. S., Actis, M., Aghajani, T., Agnetta, G., Aguilar, J., Tammi, J. & Tornikoski, M., 2013, In : ASTROPARTICLE PHYSICS. 43, p. 3-18

    Research output: Contribution to journalArticle

  46. Published
  47. Published

    Mistä Wolfin-Rayetin tähti saa valtavan kirkkautensa?

    Valtaoja, E., Tammi, J. & Enqvist, K., 2013, In : Tähdet ja Avaruus. 4, p. 54-55

    Research output: Contribution to journalArticle

  48. Published

    Radio to gamma-ray variability study of blazar S5 0716+714

    Rani, B., Krichbaum, T. P., Fuhrmann, L., Böttcher, M., Lott, B., Aller, H. D., Aller, M. F., Angelakis, E., Bach, U., Bastieri, D. & 27 others, Falcone, A. D., Fukazawa, Y., Gabanyi, K. E., Gupta, A. C., Gurwell, M., Itoh, R., Kawabata, K. S., Krips, M., Lähteenmäki, A. A., Liu, X., Marchili, N., Max-Moerbeck, W., Nestoras, I., Nieppola, E., Quintana-Lacaci, G., Readhead, A. C. S., Richards, J. L., Sasada, M., Sievers, A., Sokolovsky, K., Stroh, M., Tammi, J., Tornikoski, M., Uemura, M., Ungerechts, H., Urano, T. & Zensus, J. A., 2013, In : Astronomy and Astrophysics. 552, id. A11, p. 24 A11.

    Research output: Contribution to journalArticle

  49. Published

    Results of long-term monitoring of 3C 273 over a wide range of wavelengths

    "Vol'vach", A. E., Kutkin, A. M., "Vol'vach", L. N., Larionov, M. G., Lahteenmaki, A., Tornikoski, M., Nieppola, E., Tammi, J., Savolainen, P., Leon-Tavares, J. & 2 others, Aller, M. F. & Aller, H. D., 2013, In : Astronomy Reports. 57, 1, p. 34-45

    Research output: Contribution to journalArticle

  50. Published

    Uusavuttoman taivas

    Tammi, J., 2013, In : Tähdet ja Avaruus. 6, p. 47

    Research output: Contribution to journalArticle

  51. 2012
  52. Published

    AGILE detection of Cygnus X-3 gamma-ray active states during the period mid-2009/mid-2010

    Bulgarelli, A., Tavani, M., Chen, A. W., Evangelista, Y., Trifoglio, M., Gianotti, F., Piano, G., Sabatini, S., Striani, E., Pooley, G. & 63 others, Trushkin, S., Nizhelskij, N. A., McCollough, M., Koljonen, K. I. I., Hannikainen, D., Lähteenmäki, A., Tammi, J., Lavonen, N., Steeghs, D., Aboudan, A., Argan, A., Barbiellini, G., Campana, R., Caraveo, P., Cattaneo, P. W., Cocco, V., Contessi, T., Costa, E., "D'Ammando", F., Del Monte, E., de Paris, G., Di Cocco, G., Donnarumma, I., Feroci, M., Fiorini, M., Fuschino, F., Galli, M., Giuliani, A., Giusti, M., Labanti, C., Lapshov, I., Lazzarotto, F., Lipari, P., Longo, F., Marisaldi, M., Mereghetti, S., Morelli, E., Moretti, E., Morselli, A., Pacciani, L., Pellizzoni, A., Perotti, F., Picozza, P., Pilia, M., Prest, M., Pucella, G., Rapisarda, M., Rappoldi, A., Rubini, A., Soffitta, P., Trois, A., Vallazza, E., Vercellone, S., Vittorini, V., Zambra, A., Zanello, D., Giommi, P., Pittori, C., Verrecchia, F., Santolamazza, P., Lucarelli, F., Colafrancesco, S. & Salotti, L., 2012, In : Astronomy and Astrophysics. 538, p. A63

    Research output: Contribution to journalArticle

  53. Published

    Bottom-up modelling of gamma-ray blazars

    Tammi, J., 2012, The Extreme and Variable High Energy Sky workshop, September 19-23 2011, Cagliari, Italy,.

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  54. Published

    Bottom-up modelling of gamma-ray blazars

    Tammi, J., 2012, In : Journal of Physics: Conference Series. 355, 1, p. 12-14 012014.

    Research output: Contribution to journalArticle

  55. Published

    Discovery of VHE gamma-rays from the blazar 1ES 1215+303 with the MAGIC telescopes and simultaneous multi-wavelength observations

    Aleksic, J., Alvarez, E. A., Antonelli, L. A., Antoranz, P., Ansoldi, S., Asensio, M., Backes, M., Barres de Almeida, U., Barrio, J. A., Bastieri, D. & 157 others, Becerra González, J., Bednarek, W., Berger, K., Bernardini, E., Biland, A., Blanch, O., Bock, R. K., Boller, A., Bonnoli, G., Borla Tridon, D., Bretz, T., Cañellas, A., Carmona, E., Carosi, A., Colin, P., Colombo, E., Contreras, J. L., Cortina, J., Cossio, L., Covino, S., Da Vela, P., Dazzi, F., De Angelis, A., De Caneva, G., De Cea del Pozo, E., De Lotto, B., Delgado Mendez, C., Diago Ortega, A., Doert, M., Domínguez, A., Dominis Prester, D., Dorner, D., Doro, M., Eisenacher, D., Elsaesser, D., Ferenc, D., Fonseca, M. V., Font, L., Fruck, C., García López, R. J., Garczarczyk, M., Garrido Terrats, D., Gaug, M., Giavitto, G., Godinovic, N., González Muñoz, A., Gozzini, S. R., Hadasch, D., Häfner, D., Herrero, A., Hildebrand, D., Hose, J., Hrupec, D., Huber, B., Jankowski, F., Jogler, T., Kadenius, V., Kellermann, H., Klepser, S., Krähenbühl, T., Krause, J., La Barbera, A., Lelas, D., Leonardo, E., Lewandowska, N., Lindfors, E., Lombardi, S., López, M., López-Coto, R., López-Oramas, A., Lorenz, E., Makariev, M., Maneva, G., Mankuzhiyil, N., Mannheim, K., Maraschi, L., Mariotti, M., Martínez, M., Mazin, D., Meucci, M., Miranda, J. M., Mirzoyan, R., Moldón, J., Moralejo, A., Munar-Adrover, P., Niedzwiecki, A., Nieto, D., Nilsson, K., Nowak, N., Orito, R., Paiano, S., Paneque, D., Paoletti, R., Pardo, S., Paredes, J. M., Partini, S., Perez-Torres, M. A., Persic, M., Pilia, M., Pochon, J., Prada, F., Prada Moroni, P. G., Prandini, E., Puerto Gimenez, I., Puljak, I., Reichardt, I., Reinthal, R., Rhode, W., Ribó, M., Rico, J., Rügamer, S., Saggion, A., Saito, K., Saito, T. Y., Salvati, M., Satalecka, K., Scalzotto, V., Scapin, V., Schultz, C., Schweizer, T., Shore, S. N., Sillanpää, A., Sitarek, J., Snidaric, I., Sobczynska, D., Spanier, F., Spiro, S., Stamatescu, V., Stamerra, A., Steinke, B., Storz, J., Strah, N., Sun, S., Suric, T., Takalo, L., Takami, H., Tavecchio, F., Temnikov, P., Terzic, T., Tescaro, D., Teshima, M., Tibolla, O., Torres, D. F., Treves, A., Uellenbeck, M., Vogler, P., Wagner, R. M., Weitzel, Q., Zabalza, V., Zandanel, F., Zanin, R., Berdyugin, A., Buson, S., Järvelä, E., Larsson, S., Lähteenmäki, A. & Tammi, J., 2012, In : Astronomy and Astrophysics. 544, A142, A142.

    Research output: Contribution to journalArticle

  56. Published

    Olisiko mustasta aukosta energialähteeksi?

    Tammi, J., 2012, In : Tähdet ja Avaruus. 6, p. 50

    Research output: Contribution to journalArticle

  57. Published

    Radio-to-gamma-ray monitoring of the narrow-line Seyfert 1 galaxy PMN J0948 + 0022 from 2008 to 2011

    Foschini, L., Angelakis, E., Fuhrmann, L., Ghisellini, G., Hovatta, T., Lahteenmaki, A., Lister, M. L., Braito, V., Gallo, L., Hamilton, T. S. & 32 others, Kino, M., Komossa, S., Pushkarev, A. B., Thompson, D. J., Tibolla, O., Tramacere, A., Carramiñana, A., Carrasco, L., Falcone, A., Giroletti, M., Grupe, D., Kovalev, Y. Y., Krichbaum, T. P., Max-Moerbeck, W., Nestoras, I., Pearson, T. J., Porras, A., Readhead, A. C. S., Recillas, E., Richards, J. L., Riquelme, D., Sievers, A., Tammi, J., Tornikoski, M., Ungerechts, H., Zensus, J. A., Celotti, A., Bonnoli, G., Doi, A., Maraschi, L., Tagliaferri, G. & Tavecchio, F., 2012, In : Astronomy and Astrophysics. 548, id. A106, p. 14 A106.

    Research output: Contribution to journalArticle

  58. Published

    Simultaneous Planck, Swift, and Fermi observations of X-ray and gamma-ray selected blazars

    Giommi, P., Polenta, G., Lähteenmäki, A., Thompson, D. J., Capalbi, M., Cutini, S., Gasparrini, D., Gonzalez-Nuevo, J., Leon-Tavares, J., Lopez-Caniego, M. & 85 others, Mazziotta, M. N., Monte, C., Perri, M., Raino, S., Tosti, G., Tramacere, A., Verrecchia, F., Aller, H. D., Aller, M. F., Angelakis, E., Bastieri, D., Berdyugin, A., Bonaldi, A., Bonavera, L., Burigana, C., Burrows, D. N., Buson, S., Cavazzuti, E., Chincarini, G., Colafrancesco, S., Costamante, L., Cuttaia, F., "D'Ammando", F., de Zotti, G., Frailis, M., Fuhrmann, L., Galeotta, S., Gargano, F., Gehrels, N., Giglietto, N., Giordano, F., Giroletti, M., Keihanen, E., King, O., Krichbaum, T. P., Lasenby, A., Lavonen, N., Lawrence, C. R., Leto, C., Lindfors, E., Mandolesi, N., Massardi, M., Max-Moerbeck, W., Michelson, P. F., Mingaliev, M., Natoli, P., Nestoras, I., Nieppola, E., Nilsson, K., Partridge, B., Pavlidou, V., Pearson, T. J., Procopio, P., Rachen, J. P., Readhead, A., Reeves, R., Reimer, A., Reinthal, R., Ricciardi, S., Richards, J., Riquelme, D., Saarinen, J., Sajina, A., Sandri, M., Savolainen, P., Sievers, A., Sillanpaa, A., Sotnikova, Y., Stevenson, M., Tagliaferri, G., Takalo, L., Tammi, J., Tavagnacco, D., Terenzi, L., Toffolatti, L., Tornikoski, M., Trigilio, C., Turunen, M., Umana, G., Ungerechts, H., Villa, F., Wu, J., Zacchei, A., Zensus, J. A. & Zhou, X., 2012, In : Astronomy and Astrophysics. 541, id. A160

    Research output: Contribution to journalArticle

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