A tidal disruption event coincident with a high-energy neutrino

Cosmic neutrinos provide a unique window into the otherwise hidden mechanism of particle acceleration in astrophysical objects. The IceCube Collaboration recently reported the likely association of one high-energy neutrino with a flare from the relativistic jet of an active galaxy pointed towards th...

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Main Authors:	Stein, R., Velzen, S.V., Kowalski, M., Franckowiak, A., Gezari, S., Miller-Jones, James, Frederick, S., Sfaradi, I., Bietenholz, M.F., Horesh, A., Fender, R., Garrappa, S., Ahumada, T., Andreoni, I., Belicki, J., Bellm, E.C., Böttcher, M., Brinnel, V., Burruss, R., Cenko, S.B., Coughlin, M.W., Cunningham, V., Drake, A., Farrar, G.R., Feeney, M., Foley, R.J., Gal-Yam, A., Golkhou, V.Z., Goobar, A., Graham, M.J., Hammerstein, E., Helou, G., Hung, T., Kasliwal, M.M., Kilpatrick, C.D., Kong, A.K.H., Kupfer, T., Laher, R.R., Mahabal, A.A., Masci, F.J., Necker, J., Nordin, J., Perley, D.A., Rigault, M., Reusch, S., Rodriguez, H., Rojas-Bravo, C., Rusholme, B., Shupe, D.L., Singer, L.P., Sollerman, J., Soumagnac, M.T., Stern, D., Taggart, K., van Santen, J., Ward, C., Woudt, P., Yao, Y.
Format:	Journal Article
Language:	English
Published:	NATURE RESEARCH 2021
Subjects:	Science & Technology Physical Sciences Astronomy & Astrophysics
Online Access:	http://purl.org/au-research/grants/arc/DP200102471 http://hdl.handle.net/20.500.11937/91523

_version_	1848765537732001792
author	Stein, R. Velzen, S.V. Kowalski, M. Franckowiak, A. Gezari, S. Miller-Jones, James Frederick, S. Sfaradi, I. Bietenholz, M.F. Horesh, A. Fender, R. Garrappa, S. Ahumada, T. Andreoni, I. Belicki, J. Bellm, E.C. Böttcher, M. Brinnel, V. Burruss, R. Cenko, S.B. Coughlin, M.W. Cunningham, V. Drake, A. Farrar, G.R. Feeney, M. Foley, R.J. Gal-Yam, A. Golkhou, V.Z. Goobar, A. Graham, M.J. Hammerstein, E. Helou, G. Hung, T. Kasliwal, M.M. Kilpatrick, C.D. Kong, A.K.H. Kupfer, T. Laher, R.R. Mahabal, A.A. Masci, F.J. Necker, J. Nordin, J. Perley, D.A. Rigault, M. Reusch, S. Rodriguez, H. Rojas-Bravo, C. Rusholme, B. Shupe, D.L. Singer, L.P. Sollerman, J. Soumagnac, M.T. Stern, D. Taggart, K. van Santen, J. Ward, C. Woudt, P. Yao, Y.
author_facet	Stein, R. Velzen, S.V. Kowalski, M. Franckowiak, A. Gezari, S. Miller-Jones, James Frederick, S. Sfaradi, I. Bietenholz, M.F. Horesh, A. Fender, R. Garrappa, S. Ahumada, T. Andreoni, I. Belicki, J. Bellm, E.C. Böttcher, M. Brinnel, V. Burruss, R. Cenko, S.B. Coughlin, M.W. Cunningham, V. Drake, A. Farrar, G.R. Feeney, M. Foley, R.J. Gal-Yam, A. Golkhou, V.Z. Goobar, A. Graham, M.J. Hammerstein, E. Helou, G. Hung, T. Kasliwal, M.M. Kilpatrick, C.D. Kong, A.K.H. Kupfer, T. Laher, R.R. Mahabal, A.A. Masci, F.J. Necker, J. Nordin, J. Perley, D.A. Rigault, M. Reusch, S. Rodriguez, H. Rojas-Bravo, C. Rusholme, B. Shupe, D.L. Singer, L.P. Sollerman, J. Soumagnac, M.T. Stern, D. Taggart, K. van Santen, J. Ward, C. Woudt, P. Yao, Y.
author_sort	Stein, R.
building	Curtin Institutional Repository
collection	Online Access
description	Cosmic neutrinos provide a unique window into the otherwise hidden mechanism of particle acceleration in astrophysical objects. The IceCube Collaboration recently reported the likely association of one high-energy neutrino with a flare from the relativistic jet of an active galaxy pointed towards the Earth. However a combined analysis of many similar active galaxies revealed no excess from the broader population, leaving the vast majority of the cosmic neutrino flux unexplained. Here we present the likely association of a radio-emitting tidal disruption event, AT2019dsg, with a second high-energy neutrino. AT2019dsg was identified as part of our systematic search for optical counterparts to high-energy neutrinos with the Zwicky Transient Facility. The probability of finding any coincident radio-emitting tidal disruption event by chance is 0.5%, while the probability of finding one as bright in bolometric energy flux as AT2019dsg is 0.2%. Our electromagnetic observations can be explained through a multizone model, with radio analysis revealing a central engine, embedded in a UV photosphere, that powers an extended synchrotron-emitting outflow. This provides an ideal site for petaelectronvolt neutrino production. Assuming that the association is genuine, our observations suggest that tidal disruption events with mildly relativistic outflows contribute to the cosmic neutrino flux.
first_indexed	2025-11-14T11:36:50Z
format	Journal Article
id	curtin-20.500.11937-91523
institution	Curtin University Malaysia
institution_category	Local University
language	English
last_indexed	2025-11-14T11:36:50Z
publishDate	2021
publisher	NATURE RESEARCH
recordtype	eprints
repository_type	Digital Repository
spelling	curtin-20.500.11937-915232023-05-18T02:03:12Z A tidal disruption event coincident with a high-energy neutrino Stein, R. Velzen, S.V. Kowalski, M. Franckowiak, A. Gezari, S. Miller-Jones, James Frederick, S. Sfaradi, I. Bietenholz, M.F. Horesh, A. Fender, R. Garrappa, S. Ahumada, T. Andreoni, I. Belicki, J. Bellm, E.C. Böttcher, M. Brinnel, V. Burruss, R. Cenko, S.B. Coughlin, M.W. Cunningham, V. Drake, A. Farrar, G.R. Feeney, M. Foley, R.J. Gal-Yam, A. Golkhou, V.Z. Goobar, A. Graham, M.J. Hammerstein, E. Helou, G. Hung, T. Kasliwal, M.M. Kilpatrick, C.D. Kong, A.K.H. Kupfer, T. Laher, R.R. Mahabal, A.A. Masci, F.J. Necker, J. Nordin, J. Perley, D.A. Rigault, M. Reusch, S. Rodriguez, H. Rojas-Bravo, C. Rusholme, B. Shupe, D.L. Singer, L.P. Sollerman, J. Soumagnac, M.T. Stern, D. Taggart, K. van Santen, J. Ward, C. Woudt, P. Yao, Y. Science & Technology Physical Sciences Astronomy & Astrophysics Cosmic neutrinos provide a unique window into the otherwise hidden mechanism of particle acceleration in astrophysical objects. The IceCube Collaboration recently reported the likely association of one high-energy neutrino with a flare from the relativistic jet of an active galaxy pointed towards the Earth. However a combined analysis of many similar active galaxies revealed no excess from the broader population, leaving the vast majority of the cosmic neutrino flux unexplained. Here we present the likely association of a radio-emitting tidal disruption event, AT2019dsg, with a second high-energy neutrino. AT2019dsg was identified as part of our systematic search for optical counterparts to high-energy neutrinos with the Zwicky Transient Facility. The probability of finding any coincident radio-emitting tidal disruption event by chance is 0.5%, while the probability of finding one as bright in bolometric energy flux as AT2019dsg is 0.2%. Our electromagnetic observations can be explained through a multizone model, with radio analysis revealing a central engine, embedded in a UV photosphere, that powers an extended synchrotron-emitting outflow. This provides an ideal site for petaelectronvolt neutrino production. Assuming that the association is genuine, our observations suggest that tidal disruption events with mildly relativistic outflows contribute to the cosmic neutrino flux. 2021 Journal Article http://hdl.handle.net/20.500.11937/91523 10.1038/s41550-020-01295-8 English http://purl.org/au-research/grants/arc/DP200102471 NATURE RESEARCH fulltext
spellingShingle	Science & Technology Physical Sciences Astronomy & Astrophysics Stein, R. Velzen, S.V. Kowalski, M. Franckowiak, A. Gezari, S. Miller-Jones, James Frederick, S. Sfaradi, I. Bietenholz, M.F. Horesh, A. Fender, R. Garrappa, S. Ahumada, T. Andreoni, I. Belicki, J. Bellm, E.C. Böttcher, M. Brinnel, V. Burruss, R. Cenko, S.B. Coughlin, M.W. Cunningham, V. Drake, A. Farrar, G.R. Feeney, M. Foley, R.J. Gal-Yam, A. Golkhou, V.Z. Goobar, A. Graham, M.J. Hammerstein, E. Helou, G. Hung, T. Kasliwal, M.M. Kilpatrick, C.D. Kong, A.K.H. Kupfer, T. Laher, R.R. Mahabal, A.A. Masci, F.J. Necker, J. Nordin, J. Perley, D.A. Rigault, M. Reusch, S. Rodriguez, H. Rojas-Bravo, C. Rusholme, B. Shupe, D.L. Singer, L.P. Sollerman, J. Soumagnac, M.T. Stern, D. Taggart, K. van Santen, J. Ward, C. Woudt, P. Yao, Y. A tidal disruption event coincident with a high-energy neutrino
title	A tidal disruption event coincident with a high-energy neutrino
title_full	A tidal disruption event coincident with a high-energy neutrino
title_fullStr	A tidal disruption event coincident with a high-energy neutrino
title_full_unstemmed	A tidal disruption event coincident with a high-energy neutrino
title_short	A tidal disruption event coincident with a high-energy neutrino
title_sort	tidal disruption event coincident with a high-energy neutrino
topic	Science & Technology Physical Sciences Astronomy & Astrophysics
url	http://purl.org/au-research/grants/arc/DP200102471 http://hdl.handle.net/20.500.11937/91523

A tidal disruption event coincident with a high-energy neutrino

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