Search for High-Energy Neutrinos from Infrared Flares

@misc{abbasi2026search,
  title = {{Search for High-Energy Neutrinos from Infrared Flares}},
  author = {R. Abbasi and M. Ackermann and J. Adams and J. A. Aguilar and M. Ahlers and J. M. Alameddine and S. Ali and N. M. Amin and K. Andeen and C. Argüelles and S. Athanasiadou and S. N. Axani and R. Babu and X. Bai and A. Balagopal V. and S. W. Barwick and V. Basu and R. Bay and J. J. Beatty and J. Becker Tjus and J. Beise and C. Bellenghi and S. Benkel and S. BenZvi and D. Berley and E. Bernardini and D. Z. Besson and E. Blaufuss and L. Bloom and S. Blot and F. Bontempo and J. Y. Book Motzkin and C. Boscolo Meneguolo and S. Böser and O. Botner and J. Braun and B. Brinson and Z. Brisson-Tsavoussis and L. Brusa and R. T. Burley and D. Butterfield and K. Carloni and J. Carpio and N. Chau and Y. C. Chen and Z. Chen and D. Chirkin and S. Choi and A. Chubarov and B. A. Clark and D. A. Coloma Borja and A. Connolly and J. M. Conrad and D. F. Cowen and C. De Clercq and J. J. DeLaunay and D. Delgado and T. Delmeulle and S. Deng and P. Desiati},
  howpublished = {arXiv},
  year = {2026},
  month = oct,
  doi = {10.48550/arxiv.2610.20163},
  eprint = {2610.20163},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2610.20163},
  note = {CC BY 4.0},
}

TY  - UNPB
TI  - Search for High-Energy Neutrinos from Infrared Flares
AU  - R. Abbasi
AU  - M. Ackermann
AU  - J. Adams
AU  - J. A. Aguilar
AU  - M. Ahlers
AU  - J. M. Alameddine
AU  - S. Ali
AU  - N. M. Amin
AU  - K. Andeen
AU  - C. Arg{ü}elles
AU  - S. Athanasiadou
AU  - S. N. Axani
AU  - R. Babu
AU  - X. Bai
AU  - A. Balagopal V.
AU  - S. W. Barwick
AU  - V. Basu
AU  - R. Bay
AU  - J. J. Beatty
AU  - J. Becker Tjus
AU  - J. Beise
AU  - C. Bellenghi
AU  - S. Benkel
AU  - S. BenZvi
AU  - D. Berley
AU  - E. Bernardini
AU  - D. Z. Besson
AU  - E. Blaufuss
AU  - L. Bloom
AU  - S. Blot
AU  - F. Bontempo
AU  - J. Y. Book Motzkin
AU  - C. Boscolo Meneguolo
AU  - S. B{ö}ser
AU  - O. Botner
AU  - J. Braun
AU  - B. Brinson
AU  - Z. Brisson-Tsavoussis
AU  - L. Brusa
AU  - R. T. Burley
AU  - D. Butterfield
AU  - K. Carloni
AU  - J. Carpio
AU  - N. Chau
AU  - Y. C. Chen
AU  - Z. Chen
AU  - D. Chirkin
AU  - S. Choi
AU  - A. Chubarov
AU  - B. A. Clark
AU  - D. A. Coloma Borja
AU  - A. Connolly
AU  - J. M. Conrad
AU  - D. F. Cowen
AU  - C. De Clercq
AU  - J. J. DeLaunay
AU  - D. Delgado
AU  - T. Delmeulle
AU  - S. Deng
AU  - P. Desiati
PY  - 2026
DA  - 2026/10/14
PB  - arXiv
DO  - 10.48550/arxiv.2610.20163
UR  - https://arxiv.org/abs/2610.20163
AB  - IceCube has detected a diffuse flux of high-energy astrophysical neutrinos. While its astrophysical origin is unknown, a significant neutrino emission has been observed from the gamma-ray blazar TXS 0506+056 and the Seyfert galaxy NGC 1068. This suggests accretion by supermassive black holes as one of the candidate mechanisms of the diffuse neutrino flux. Indeed, external studies that made use of IceCube data identified candidate sources, including AT2019dsg, likely a stellar tidal disruption event (TDE), and AT2019fdr, associated with an active galactic nucleus (AGN). An additional study using an optically detected sample of 63 accretion flares revealed another candidate as a potential high-energy neutrino counterpart: AT2019aalc. All of these candidate transients exhibit strong dust echoes, characterized by delayed infrared (IR) emission relative to the initial optical outburst. We look for correlations between the most comprehensive catalog of infrared flares and 10 years of IceCube archival data. We perform a time-dependent stacking analysis testing 393 sources in the Northern Sky against 10 years of through-going tracks. No significant neutrino emission is observed, and we derive upper limits to constrain neutrino emission from this catalog. These limits are subsequently extrapolated to a population-level study. We find that the contribution of IR flares to the IceCube diffuse neutrino flux at 100 TeV is below 2.7% for a spectral index of 2.5.
ER  -