Alexander (Sasha) Plavin

PhD in Astrophysics | Curriculum vitae

Major astrophysical projects of mine are listed and illustrated below.
For the complete publication list, see NASA ADS or Google Scholar

Extensively use Julia in my research: see packages I authored at GitHub.

You can also reach me via alexander plav.in

Astrophysics

active galaxies, radio, optical, neutrino astronomy, ...

Origins of high-energy neutrinos
Publications
Searches for Neutrinos in the Direction of Radio-bright Blazars with the ANTARES Telescope
ANTARES Collaboration, A. Albert, S. Alves, M. Andr \'e, M. Ardid, S. Ardid, J. Aubert, J. Aublin, B. Baret, S. Basa, Y. Becherini, B. Belhorma, M. Bendahman, F. Benfenati, V. Bertin, S. Biagi, M. Bissinger, J. Boumaaza, M. Bouta, M. C. Bouwhuis, H. Br \^a nza \c s, R. Bruijn, J. Brunner, J. Busto, B. Caiffi, D. Calvo, S. Campion, A. Capone, L. Caramete, F. Carenini, J. Carr, V. Carretero, S. Celli, L. Cerisy, M. Chabab, R. Cherkaoui El Moursli, T. Chiarusi, M. Circella, J. A. B. Coelho, A. Coleiro, R. Coniglione, P. Coyle, A. Creusot, A. S. M. Cruz, A. F. D \'\i az, B. de Martino, C. Distefano, I. di Palma, A. Domi, C. Donzaud, D. Dornic, D. Drouhin, T. Eberl, T. van Eeden, D. van Eijk, S. El Hedri, N. El Khayati, A. Enzenh \"o fer, P. Fermani, G. Ferrara, F. Filippini, L. Fusco, S. Gagliardini, J. Garc \'\i a, C. Gatius Oliver, P. Gay, N. Gei \ss elbrecht, H. Glotin, R. Gozzini, R. Gracia Ruiz, K. Graf, C. Guidi, L. Haegel, S. Hallmann, H. van Haren, A. J. Heijboer, Y. Hello, J. J. Hern \'a ndez-Rey, J. H \"o \ss l, J. Hofest \"a dt, F. Huang, G. Illuminati, C. W. James, B. Jisse-Jung, M. de Jong, P. de Jong, M. Kadler, O. Kalekin, U. Katz, A. Kouchner, Y. A. Kovalev, Y. Y. Kovalev, I. Kreykenbohm, V. Kulikovskiy, R. Lahmann, M. Lamoureux, A. Lazo, D. Lef \`e vre, E. Leonora, G. Levi, S. Le Stum, D. Lopez-Coto, S. Loucatos, L. Maderer, J. Manczak, M. Marcelin, A. Margiotta, A. Marinelli, J. A. Mart \'\i nez-Mora, P. Migliozzi, A. Moussa, R. Muller, S. Navas, E. Nezri, B. Fearraigh, E. Oukacha, A. P \u a un, G. E. P \u a v \u a la \c s, S. Pe \ n a-Mart \'\i nez, M. Perrin-Terrin, V. Pestel, P. Piattelli, A. Plavin, C. Poir \`e, V. Popa, T. Pradier, A. Pushkarev, N. Randazzo, D. Real, S. Reck, G. Riccobene, A. Romanov, A. S \'a nchez-Losa, A. Saina, F. Salesa Greus, D. F. E. Samtleben, M. Sanguineti, P. Sapienza, J. Schnabel, J. Schumann, F. Sch \"u ssler, J. Seneca, M. Spurio, Th. Stolarczyk, M. Taiuti, Y. Tayalati, S. J. Tingay, S. Troitsky, B. Vallage, G. Vannoye, V. van Elewyck, S. Viola, D. Vivolo, J. Wilms, S. Zavatarelli, A. Zegarelli, J. D. Zornoza, J. Z \'u \ n iga, (ANTARES Collaboration), T. Hovatta, S. Kiehlmann, I. Liodakis, V. Pavlidou, A. C. S. Readhead, (Ovro Collaboration)
2024, ApJ [doi] [ADS]
High-energy neutrino-induced cascade from the direction of the flaring radio blazar TXS 0506 + 056 observed by Baikal-GVD in 2021
Baikal-GVD Collaboration, V. A. Allakhverdyan, A. D. Avrorin, A. V. Avrorin, V. M. Aynutdinov, Z. Barda \v c ov \'a, I. A. Belolaptikov, E. A. Bondarev, I. V. Borina, N. M. Budnev, V. A. Chadymov, A. S. Chepurnov, V. Y. Dik, G. V. Domogatsky, A. A. Doroshenko, R. Dvornick \'y, A. N. Dyachok, Zh-A. M. Dzhilkibaev, E. Eckerov \'a, T. V. Elzhov, L. Fajt, V. N. Fomin, A. R. Gafarov, K. V. Golubkov, N. S. Gorshkov, T. I. Gress, K. G. Kebkal, I. Kharuk, E. V. Khramov, M. M. Kolbin, S. O. Koligaev, K. V. Konischev, A. V. Korobchenko, A. P. Koshechkin, V. A. Kozhin, M. V. Kruglov, V. F. Kulepov, Y. E. Lemeshev, M. B. Milenin, R. R. Mirgazov, D. V. Naumov, A. S. Nikolaev, D. P. Petukhov, E. N. Pliskovsky, M. I. Rozanov, E. V. Ryabov, G. B. Safronov, D. Seitova, B. A. Shaybonov, M. D. Shelepov, S. D. Shilkin, E. V. Shirokov, F. \v S imkovic, A. E. Sirenko, A. V. Skurikhin, A. G. Solovjev, M. N. Sorokovikov, I. \v S tekl, A. P. Stromakov, O. V. Suvorova, V. A. Tabolenko, B. B. Ulzutuev, Y. V. Yablokova, D. N. Zaborov, S. I. Zavyalov, D. Y. Zvezdov, A. K. Erkenov, N. A. Kosogorov, Yu Kovalev, Y. Y. Kovalev, A. V. Plavin, A. V. Popkov, A. B. Pushkarev, D. V. Semikoz, Y. V. Sotnikova, S. V. Troitsky, (Baikal-GVD Collaboration)
2024, MNRAS [doi] [ADS]
Search for directional associations between Baikal Gigaton Volume Detector neutrino-induced cascades and high-energy astrophysical sources
Baikal-GVD Collaboration, V. A. Allakhverdyan, A. D. Avrorin, A. V. Avrorin, V. M. Aynutdinov, Z. Barda \v c ov \'a, I. A. Belolaptikov, E. A. Bondarev, I. V. Borina, N. M. Budnev, A. S. Chepurnov, V. Y. Dik, G. V. Domogatsky, A. A. Doroshenko, R. Dvornick \'y, A. N. Dyachok, Zh-A. M. Dzhilkibaev, E. Eckerov \'a, T. V. Elzhov, L. Fajt, A. R. Gafarov, K. V. Golubkov, N. S. Gorshkov, T. I. Gress, K. G. Kebkal, I. Kharuk, E. V. Khramov, M. M. Kolbin, K. V. Konischev, A. V. Korobchenko, A. P. Koshechkin, V. A. Kozhin, M. V. Kruglov, V. F. Kulepov, Y. E. Lemeshev, M. B. Milenin, R. R. Mirgazov, D. V. Naumov, A. S. Nikolaev, D. P. Petukhov, E. N. Pliskovsky, M. I. Rozanov, E. V. Ryabov, G. B. Safronov, D. Seitova, B. A. Shaybonov, M. D. Shelepov, S. D. Shilkin, E. V. Shirokov, F. \v S imkovic, A. E. Sirenko, A. V. Skurikhin, A. G. Solovjev, M. N. Sorokovikov, I. \v S tekl, A. P. Stromakov, O. V. Suvorova, V. A. Tabolenko, B. B. Ulzutuev, Y. V. Yablokova, D. N. Zaborov, S. I. Zavyalov, D. Y. Zvezdov, N. A. Kosogorov, Y. Y. Kovalev, G. V. Lipunova, A. V. Plavin, D. V. Semikoz, S. V. Troitsky, Baikal-GVD Collaboration
2023, MNRAS [doi] [ADS]
Growing evidence for high-energy neutrinos originating in radio blazars
A. V. Plavin, Y. Y. Kovalev, Yu Kovalev, S. V. Troitsky
2023, MNRAS [doi] [ADS]
Probing Neutrino Production in Blazars by Millimeter VLBI
Yuri Kovalev, Alexander Plavin, Alexander Pushkarev, Sergey Troitsky
2023, Galaxies [doi] [ADS]
Hard X-ray emission from blazars associated with high-energy neutrinos
A. V. Plavin, R. A. Burenin, Y. Y. Kovalev, A. A. Lutovinov, A. A. Starobinsky, S. V. Troitsky, E. I. Zakharov
2023, submitted [doi] [ADS]
Galactic Contribution to the High-energy Neutrino Flux Found in Track-like IceCube Events
Y. Y. Kovalev, A. V. Plavin, S. V. Troitsky
2022, ApJL [doi] [ADS]
Directional Association of TeV to PeV Astrophysical Neutrinos with Radio Blazars
A. V. Plavin, Y. Y. Kovalev, Yu. Kovalev, S. V. Troitsky
2021, ApJ [doi] [ADS]
Observational Evidence for the Origin of High-energy Neutrinos in Parsec-scale Nuclei of Radio-bright Active Galaxies
Alexander Plavin, Yuri Kovalev, Yuri Kovalev, Sergey Troitsky
2020, ApJ [doi] [ADS]
Astronomer's Telegrams
Radio-flaring blazar PKS 0446+11 with bright parsec-scale core as a candidate for IceCube-240105A: RATAN-600 and MOJAVE VLBA observations2024, Y. Y. Kovalev, A. V. Plavin, S. V. Troitsky, Yu. Kovalev, A. V. Popkov, A. B. Pushkarev
The radio blazar TXS 1749-101 coincident with two high-energy neutrinos: IceCube alerts 181023A and the recent 220425A2022, A. V. Plavin, Y. Y. Kovalev, S. V. Troitsky, Yu. Kovalev, A. V. Popkov, A. K. Erkenov, Y. V. Sotnikova, Ratan-600 Monitoring Team, Florian Eppel, Andrea Gokus, Jonas Hessdoerfer, Matthias Kadler, George Paraschos, Florian Roesch
The flaring radio-bright blazar PKS 0215+015 coincident with the high energy neutrino alert IceCube-220225A2022, A. V. Plavin, Y. Y. Kovalev, S. V. Troitsky, Yu. Kovalev, T. Hovatta, S. Kiehlmann, I. Liodakis, A. C. S. Readhead, A. K. Erkenov, Y. V. Sotnikova, M. Tornikoski, A. Lahteenmaki, S. G. Jorstad, A. P. Marscher, J. L. G \'o mez, M. Giroletti, N. Marchili, S. Righini, A. B. Pushkarev
The radio-bright blazar PKS 1741-03 coincident with the high energy neutrino alert IceCube-220205B2022, Y. Y. Kovalev, A. V. Plavin, S. V. Troitsky, Yu. Kovalev, T. Hovatta, S. Kiehlmann, I. Liodakis, A. C. S. Readhead, A. K. Erkenov, Y. V. Sotnikova, M. Tornikoski, A. Lahteenmaki, S. G. Jorstad, A. P. Marscher, J. L. G \'o mez, M. Giroletti, N. Marchili, S. Righini, A. B. Pushkarev
Blazar 0250-001 with bright VLBI-compact core is a probable neutrino candidate source for IceCube-211116A2021, Y. Y. Kovalev, A. V. Plavin, S. V. Troitsky, Yu. Kovalev, A. V. Popkov
Radio blazar 1801+253 is associated with IceCube-210811A and flares immediately after the neutrino event2021, S. V. Troitsky, Yu. Sotnikova, A. K. Erkenov, Yu. Kovalev, Y. Y. Kovalev, A. V. Plavin, A. V. Popkov
Blazars J0201-1132 and J0206-1150 with bright VLBI-compact cores are probable neutrino source candidates for IceCube-201130A2020, A. V. Plavin, Y. Y. Kovalev, Yu. Kovalev, S. V. Troitsky
The RATAN-600 2-22 GHz continuum spectrum of the neutrino association quasar TXS 1100+122 is slightly rising2020, Yu. Kovalev, Yu. Sotnikova, A. K. Erkenov, Y. Y. Kovalev, A. V. Plavin, S. V. Troitsky
Flat spectrum radio quasar TXS 1100+122 has a bright VLBI-compact core - as expected for neutrino candidate sources2020, Y. Y. Kovalev, S. V. Troitsky, Yu. Kovalev, A. V. Plavin
Press Releases
Сверхмассивные черные дыры назвали источником всех космических нейтрино
2021
:МФТИ|ТАСС|РИА|Научная Россия
Где рождаются нейтрино?
2020
:МФТИ|Популярная Механика|Indicator|N+1|Naked Science|Lenta.Ru|Russia Today|АиФ|РИА|ТАСС|Scinexx|Space Daily|Phys.Org|Троицкий Вариант
Physics of quasars revealed by radio-optical astrometry
Publications
Optical polarization properties of AGNs with significant VLBI-Gaia offsets
Y. Y. Kovalev, D. I. Zobnina, A. V. Plavin, D. Blinov
2020, MNRAS [doi] [ADS]
Dissecting the AGN Disk-Jet System with Joint VLBI-Gaia Analysis
A. V. Plavin, Y. Y. Kovalev, L. Y. Petrov
2019, ApJ [doi] [ADS]
A quantitative analysis of systematic differences in the positions and proper motions of Gaia DR2 with respect to VLBI
L. Petrov, Y. Y. Kovalev, A. V. Plavin
2019, MNRAS [doi] [ADS]
VLBI-Gaia offsets favor parsec-scale jet direction in active galactic nuclei
Y. Y. Kovalev, L. Petrov, A. V. Plavin
2017, A&A [doi] [ADS]
Press Releases
3D-очки для квазаров
2020
:МФТИ|Naked Science|ТАСС
«Хвосты» квазаров могут запутать космический телескоп и одновременно помочь ученым
2019
:МФТИ|МФТИ|ФИАН|РИА|Naked Science|Indicator|Phys.Org
Путаница в показаниях: как расхождения в данных телескопов помогли учёным «ощупать» квазары и их «хвосты»
2017
:МФТИ|ФИАН|РИА|The Register|Indicator|Мир космоса
Synchrotron opacity in quasar jets
Publications
A bias in VLBI measurements of the core shift effect in AGN jets
I. N. Pashchenko, A. V. Plavin, A. M. Kutkin, Y. Y. Kovalev
2020, MNRAS [doi] [ADS]
Significant core shift variability in parsec-scale jets of active galactic nuclei
A. V. Plavin, Y. Y. Kovalev, A. B. Pushkarev, A. P. Lobanov
2019, MNRAS [doi] [ADS]
Frequency-Dependent Core Shifts in Ultracompact Quasars
P. A. Voitsik, A. B. Pushkarev, Yu. Kovalev, A. V. Plavin, A. P. Lobanov, A. V. Ipatov
2018, ARep [doi] [ADS]
Press Releases
Астрономы убедились, что квазары не «прибиты гвоздями» к небу
2019
:МФТИ|РИА|Naked Science|ТАСС|Наука и Жизнь|Indicator
Other
Publications
The SARAO MeerKAT 1.3 GHz Galactic Plane Survey
S. Goedhart, W. D. Cotton, F. Camilo, M. A. Thompson, G. Umana, M. Bietenholz, P. A. Woudt, L. D. Anderson, C. Bordiu, D. A. H. Buckley, C. S. Buemi, F. Bufano, F. Cavallaro, H. Chen, J. O. Chibueze, D. Egbo, B. S. Frank, M. G. Hoare, A. Ingallinera, T. Irabor, R. C. Kraan-Korteweg, S. Kurapati, P. Leto, S. Loru, M. Mutale, W. O. Obonyo, A. Plavin, S. H. A. Rajohnson, A. Rigby, S. Riggi, M. Seidu, P. Serra, B. M. Smart, B. W. Stappers, N. Steyn, M. Surnis, C. Trigilio, G. M. Williams, T. D. Abbott, R. M. Adam, K. M. B. Asad, T. Baloyi, E. F. Bauermeister, T. G. H. Bennet, H. Bester, A. G. Botha, L. R. S. Brederode, S. Buchner, J. P. Burger, T. Cheetham, K. Cloete, M. S. de Villiers, D. I. L. de Villiers, L. J. du Toit, S. W. P. Esterhuyse, B. L. Fanaroff, D. J. Fourie, R. R. G. Gamatham, T. G. Gatsi, M. Geyer, M. Gouws, S. C. Gumede, I. Heywood, A. Hokwana, S. W. Hoosen, D. M. Horn, L. M. G. Horrell, B. V. Hugo, A. I. Isaacson, G. I. G. J \'o zsa, J. L. Jonas, J. D. B. L. Jordaan, A. F. Joubert, R. P. M. Julie, F. B. Kapp, N. Kriek, H. Kriel, V. K. Krishnan, T. W. Kusel, L. S. Legodi, R. Lehmensiek, R. T. Lord, P. S. Macfarlane, L. G. Magnus, C. Magozore, J. P. L. Main, J. A. Malan, J. R. Manley, S. J. Marais, M. D. J. Maree, A. Martens, P. Maruping, K. McAlpine, B. C. Merry, M. Mgodeli, R. P. Millenaar, O. J. Mokone, T. E. Monama, W. S. New, B. Ngcebetsha, K. J. Ngoasheng, G. D. Nicolson, M. T. Ockards, N. Oozeer, S. S. Passmoor, A. A. Patel, A. Peens-Hough, S. J. Perkins, A. J. T. Ramaila, S. M. Ratcliffe, R. Renil, L. L. Richter, S. Salie, N. Sambu, C. T. G. Schollar, L. C. Schwardt, R. L. Schwartz, M. Serylak, R. Siebrits, S. K. Sirothia, M. J. Slabber, O. M. Smirnov, A. J. Tiplady, T. J. van Balla, A. Byl, V. Van Tonder, A. J. Venter, M. Venter, M. G. Welz, L. P. Williams
2023, submitted [doi] [ADS]
RadioAstron discovery of a mini-cocoon around the restarted parsec-scale jet in 3C 84
T. Savolainen, G. Giovannini, Y. Y. Kovalev, M. Perucho, J. M. Anderson, G. Bruni, P. G. Edwards, A. Fuentes, M. Giroletti, J. L. G \'o mez, K. Hada, S. Lee, M. M. Lisakov, A. P. Lobanov, J. L \'o pez-Miralles, M. Orienti, L. Petrov, A. V. Plavin, B. W. Sohn, K. V. Sokolovsky, P. A. Voitsik, J. A. Zensus
2023, A&A [doi] [ADS]
Tracing Milky Way scattering by compact extragalactic radio sources
T. A. Koryukova, A. B. Pushkarev, A. V. Plavin, Y. Y. Kovalev
2022, MNRAS [doi] [ADS]
The science case and challenges of space-borne sub-millimeter interferometry
Leonid Gurvits, Zsolt Paragi, Ricardo Amils, Ilse van Bemmel, Paul Boven, Viviana Casasola, John Conway, Jordy Davelaar, M. D \'\i ez-Gonz \'a lez, Heino Falcke, Rob Fender, S \'a ndor Frey, Christian Fromm, Juan Gallego-Puyol, Cristina Garc \'\i a-Mir \'o, Michael Garrett, Marcello Giroletti, Ciriaco Goddi, Jos \'e G \'o mez, Jeffrey Gucht, Jos \'e Guirado, Zolt \'a n Haiman, Frank Helmich, Ben Hudson, Elizabeth Humphreys, Violette Impellizzeri, Michael Janssen, Michael Johnson, Yuri Kovalev, Michael Kramer, Michael Lindqvist, Hendrik Linz, Elisabetta Liuzzo, Andrei Lobanov, Isaac L \'o pez-Fern \'a ndez, Inmaculada Malo-G \'o mez, Kunal Masania, Yosuke Mizuno, Alexander Plavin, Raj Rajan, Luciano Rezzolla, Freek Roelofs, Eduardo Ros, Kazi Rygl, Tuomas Savolainen, Karl Schuster, Tiziana Venturi, Marjolein Verkouter, Pablo de Vicente, Pieter Visser, Martina Wiedner, Maciek Wielgus, Kaj Wiik, J. Zensus
2022, ActaAstro [doi] [ADS]
Direction of Parsec-scale Jets for 9220 Active Galactic Nuclei
A. V. Plavin, Y. Y. Kovalev, A. B. Pushkarev
2022, ApJS [doi] [ADS]
FRB 121102: Drastic changes in the burst polarization contrasts with the stability of the persistent emission
A. Plavin, Z. Paragi, B. Marcote, A. Keimpema, J. W. T. Hessels, K. Nimmo, H. K. Vedantham, L. G. Spitler
2022, MNRAS [doi] [ADS]
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, T. Savolainen
2020, MNRAS [doi] [ADS]
Inferring the jet parameters of active galactic nuclei using Bayesian analysis of VLBI data with a non-uniform jet model
Ilya Pashchenko, Alexander Plavin
2019, MNRAS [doi] [ADS]
Press Releases
Межзвездная пыль позволила ученым взглянуть на Млечный Путь из далеких галактик
2022
:Naked Science
FRB 121102: drastic changes in the burst polarisation contrasts with the stability of the persistent emission
2022
:EVN
Квазары предпочитают моду семидесятых
2020
:МФТИ|ФИАН|Популярная Механика|Phys.Org