Alexander(Sasha) Plavin

2017-2022
PhD student, Physics & Astronomy
Astro Space Center of Lebedev Physical Institute, Moscow
2015-2017
MSc, Applied Mathematics & Physics
Moscow Institute of Physics and Technology
2011-2015
BSc, Applied Mathematics & Physics
Moscow Institute of Physics and Technology

Major astrophysical projects of mine are listed and illustrated below.
For the complete publication list, see NASA ADS or Google Scholar
You can also reach me viaalexander plav.in

Astrophysics

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

Origins of high-energy neutrinos

Publications

Growing evidence for high-energy neutrinos originating in radio blazars

A. V. Plavin, Y. Y. Kovalev, Y. A. Kovalev, S. V. Troitsky
2022, MNRAS submitted [arXiv]

High-energy neutrino-induced cascade from the direction of the flaring radio blazar TXS 0506+056 observed by the Baikal Gigaton Volume Detector in 2021

Collaboration, A. K. Erkenov, N. A. Kosogorov, Y. A. Kovalev, Y. Y. Kovalev, A. V. Plavin, A. V. Popkov, A. B. Pushkarev, D. V. Semikoz, Y. V. Sotnikova, S. V. Troitsky
2022, submitted [arXiv]

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 [arXiv]

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] [arXiv]

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] [arXiv]

Astronomer's Telegrams

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

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] [arXiv]

Dissecting the AGN Disk-Jet System with Joint VLBI-Gaia Analysis

A. V. Plavin, Y. Y. Kovalev, L. Y. Petrov
2019, ApJ [doi] [arXiv]

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] [arXiv]

VLBI-Gaia offsets favor parsec-scale jet direction in active galactic nuclei

Y. Y. Kovalev, L. Petrov, A. V. Plavin
2017, A&A [doi] [arXiv]

Press Releases

3D-очки для квазаров

2020

:МФТИ|Naked Science|ТАСС

«Хвосты» квазаров могут запутать космический телескоп и одновременно помочь ученым

2019

Путаница в показаниях: как расхождения в данных телескопов помогли учёным «ощупать» квазары и их «хвосты»

2017

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] [arXiv]

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] [arXiv]

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] [arXiv]

Press Releases

Астрономы убедились, что квазары не «прибиты гвоздями» к небу

2019

Other

Publications

Tracing Milky Way scattering by compact extragalactic radio sources

T. A. Koryukova, A. B. Pushkarev, A. V. Plavin, Y. Y. Kovalev
2022, MNRAS [doi] [arXiv]

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] [arXiv]

Direction of Parsec-scale Jets for 9220 Active Galactic Nuclei

A. V. Plavin, Y. Y. Kovalev, A. B. Pushkarev
2022, ApJS [doi] [arXiv]

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] [arXiv]

RadioAstron discovers 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. 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
2021, ... [arXiv]

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] [arXiv]

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] [arXiv]

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