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@ARTICLE{Stein:598568,
      author       = {Stein, Robert and Reusch, Simeon and Franckowiak, Anna and
                      Kowalski, Marek and Necker, Jannis and Weimann, Sven and
                      Kasliwal, Mansi M. and Sollerman, Jesper and Ahumada, Tomas
                      and Amaro-Seoane, Pau and Anand, Shreya and Andreoni, Igor
                      and Bellm, Eric C. and Bloom, Joshua S. and Coughlin,
                      Michael and De, Kishalay and Fremling, Christoffer and
                      Gezari, Suvi and Graham, Matthew and Groom, Steven L. and
                      Helou, George and Kaplan, David L. and Karambelkar, Viraj
                      and Kong, Albert K. H. and Kool, Erik C. and Lincetto,
                      Massimiliano and Mahabal, Ashish A. and Masci, Frank J. and
                      Medford, Michael S. and Morgan, Robert and Nordin, Jakob and
                      Rodriguez, Hector and Sharma, Yashvi and van Santen, Jakob
                      and van Velzen, Sjoert and Yan, Lin},
      title        = {{N}eutrino follow-up with the {Z}wicky {T}ransient
                      {F}acility: {R}esults from the first 24 campaigns},
      journal      = {Monthly notices of the Royal Astronomical Society},
      volume       = {521},
      number       = {4},
      issn         = {0035-8711},
      address      = {Oxford},
      publisher    = {Oxford Univ. Press},
      reportid     = {PUBDB-2023-06887, arXiv:2203.17135},
      pages        = {5046-5063},
      year         = {2023},
      note         = {Submitted to MNRAS, comments welcome! Waiting for fulltext},
      abstract     = {The Zwicky Transient Transient Facility (ZTF) performs a
                      systematic neutrino follow-up program, searching for optical
                      counterparts to high-energy neutrinos with dedicated
                      Target-of-Opportunity (ToO) observations. Since first light
                      in March 2018, ZTF has taken prompt observations for 24
                      high-quality neutrino alerts from the IceCube Neutrino
                      Observatory, with a median latency of 12.2 hours from
                      initial neutrino detection. From two of these campaigns, we
                      have already reported tidal disruption event (TDE) AT2019dsg
                      and likely TDE AT2019fdr as probable counterparts,
                      suggesting that TDEs contribute $>7.8\%$ of the
                      astrophysical neutrino flux. We here present the full
                      results of our program through to December 2021. No
                      additional candidate neutrino sources were identified by our
                      program, allowing us to place the first constraints on the
                      underlying optical luminosity function of astrophysical
                      neutrino sources. Transients with optical absolutes
                      magnitudes brighter that -21 can contribute no more than
                      $87\%$ of the total, while transients brighter than -22 can
                      contribute no more than $58\%$ of the total, neglecting the
                      effect of extinction. These are the the first observational
                      constraints on the neutrino emission of bright populations
                      such as superluminous supernovae. None of the neutrinos were
                      coincident with bright optical AGN flares comparable to that
                      observed for TXS 0506+056/IC170922A, suggesting that most
                      astrophysical neutrinos are not produced during such optical
                      flares. We highlight the outlook for electromagnetic
                      neutrino follow-up programs, including the expected
                      potential for the Rubin Observatory.},
      cin          = {HUB / $Z_ICE$ / $Z_NA$},
      ddc          = {520},
      cid          = {I:(DE-H253)HUB-20140108 / $I:(DE-H253)Z_ICE-20210408$ /
                      $I:(DE-H253)Z_NA-20210408$},
      pnm          = {613 - Matter and Radiation from the Universe (POF4-613)},
      pid          = {G:(DE-HGF)POF4-613},
      experiment   = {EXP:(DE-H253)IceCube-20150101},
      typ          = {PUB:(DE-HGF)16},
      eprint       = {2203.17135},
      howpublished = {arXiv:2203.17135},
      archivePrefix = {arXiv},
      SLACcitation = {$\%\%CITATION$ = $arXiv:2203.17135;\%\%$},
      UT           = {WOS:000967630200001},
      doi          = {10.1093/mnras/stad767},
      url          = {https://bib-pubdb1.desy.de/record/598568},
}