{ "id": "2307.15372", "version": "v1", "published": "2023-07-28T07:44:37.000Z", "updated": "2023-07-28T07:44:37.000Z", "title": "IceCube search for neutrinos from novae", "authors": [ "Jessie Thwaites", "Justin Vandenbroucke" ], "comment": "Presented at the 38th International Cosmic Ray Conference (ICRC2023). See arXiv:2307.13047 for all IceCube contributions", "categories": [ "astro-ph.HE" ], "abstract": "Despite being one of the longest known classes of astrophysical transients, novae continue to present modern surprises. The Fermi-LAT discovered that many if not all novae are GeV gamma ray sources, even though theoretical models had not even considered them as a possible source class. More recently, MAGIC and H.E.S.S. detected TeV gamma rays from a nova. Moreover, there is strong evidence that the gamma rays are produced hadronically, and that the long-studied optical emission by novae is also shock-powered. If this is true, novae should emit a neutrino signal correlated with their gamma-ray and optical signals. We present the first search for neutrinos from novae. Because the neutrino energy spectrum is expected to match the gamma-ray spectrum, we use an IceCube DeepCore event selection focused on GeV-TeV neutrinos. We present results from two searches, one for neutrinos correlated with gamma-ray emission and one for neutrinos correlated with optical emission. The event selection presented here is promising for additional astrophysical transients including gamma-ray bursts and gravitational wave sources.", "revisions": [ { "version": "v1", "updated": "2023-07-28T07:44:37.000Z" } ], "analyses": { "keywords": [ "icecube search", "gev gamma ray sources", "icecube deepcore event selection", "neutrino energy spectrum", "optical emission" ], "tags": [ "conference paper" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }