VLBI Scrutiny of a New Neutrino-Blazar Multiwavelength-Flare Coincidence
Eppel F, Kadler M, Ros E, Rösch F, Heβdörfer J, Benke P, Edwards PG, Fromm CM, Giroletti M, Gokus A, Gómez JL, Hämmerich S, Kirchner D, Kovalev YY, Krichbaum TP, Lister ML, Nanci C, Ojha R, Paraschos GF, Plavin A, Readhead AC, Stevens J, Weber P (2023)
Publication Type: Conference contribution
Publication year: 2023
Journal
Publisher: Cambridge University Press
Book Volume: 17
Pages Range: 91-95
Conference Proceedings Title: Proceedings of the International Astronomical Union
DOI: 10.1017/S1743921323000893
Abstract
In recent years, evidence has started piling up that some high-energy cosmic neutrinos can be associated with blazars in flaring states. On 2022 February 26, a new blazar-neutrino coincidence was reported: the track-like neutrino event IC220225A detected by IceCube is spatially coincident with the flat-spectrum radio quasar PKS 0215+015. Like previous associations, this source was found to be in a high optical and γ-ray state. Moreover, the source showed a bright radio outburst, which substantially increases the probability of a true physical association. We have performed six observations with the VLBA shortly after the neutrino event with a monthly cadence and are monitoring the source with the Effelsberg 100m-Telescope, and with the Australia Compact Telescope Array. Here, we present first results on the contemporary parsec-scale jet structure of PKS 0215+015 in total intensity and polarization to constrain possible physical processes leading to neutrino emission in blazars.
Authors with CRIS profile
Involved external institutions
National Institute for Astrophysics / Istituto Nazionale Astrofisica (INAF)
Italy (IT)
Lebedev Physical Institute of the Russian Academy of Sciences (LPI RAS) / Физи́ческий институ́т имени П.Н.Ле́бедева Российской академии наук (ФИАН)
Russian Federation (RU)
National Aeronautics and Space Administration (NASA)
United States (USA) (US)
Max-Planck-Institut für Radioastronomie / Max Planck Institute for Radio Astronomy
Germany (DE)
California Institute of Technology (Caltech)
United States (USA) (US)
Commonwealth Scientific and Industrial Research Organisation (CSIRO)
Australia (AU)
Julius-Maximilians-Universität Würzburg
Germany (DE)
Purdue University
United States (USA) (US)
Washington University in St. Louis
United States (USA) (US)
Institute of Astrophysics of Andalusia / Instituto de Astrofísica de Andalucía (IAA-CSIC)
Spain (ES)
Italy (IT)
Lebedev Physical Institute of the Russian Academy of Sciences (LPI RAS) / Физи́ческий институ́т имени П.Н.Ле́бедева Российской академии наук (ФИАН)
Russian Federation (RU)
National Aeronautics and Space Administration (NASA)
United States (USA) (US)
Max-Planck-Institut für Radioastronomie / Max Planck Institute for Radio Astronomy
Germany (DE)
California Institute of Technology (Caltech)
United States (USA) (US)
Commonwealth Scientific and Industrial Research Organisation (CSIRO)
Australia (AU)
Julius-Maximilians-Universität Würzburg
Germany (DE)
Purdue University
United States (USA) (US)
Washington University in St. Louis
United States (USA) (US)
Institute of Astrophysics of Andalusia / Instituto de Astrofísica de Andalucía (IAA-CSIC)
Spain (ES)
How to cite
APA:
Eppel, F., Kadler, M., Ros, E., Rösch, F., Heβdörfer, J., Benke, P.,... Weber, P. (2023). VLBI Scrutiny of a New Neutrino-Blazar Multiwavelength-Flare Coincidence. In Proceedings of the International Astronomical Union (pp. 91-95). Cambridge University Press.
MLA:
Eppel, F., et al. "VLBI Scrutiny of a New Neutrino-Blazar Multiwavelength-Flare Coincidence." Proceedings of the Proceedings of the International Astronomical Union Cambridge University Press, 2023. 91-95.
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