{"about":{"site":"https://codewithpapers.app","non_affiliation":"Code with Papers and Syntology are not affiliated with, endorsed by, or sponsored by Papers with Code, Meta, or the pwc-archive mirror.","licence":"CC BY-SA 4.0","licence_url":"https://creativecommons.org/licenses/by-sa/4.0/legalcode","attribution":"https://codewithpapers.app/attribution","modified":"archive material modified by Syntology; see the attribution page"},"url":"/paper/potential-gravitational-wave-and-gamma-ray","title":"Potential Gravitational-wave and Gamma-ray Multi-messenger Candidate from Oct. 30, 2015","arxiv_id":"1902.09496","date":"2019-02-25","proceeding":null,"authors":["Alexander H. Nitz","Alex B. Nielsen","Collin D. Capano"],"abstract":"We present a search for binary neutron star mergers that produced gravitational-waves during the first observing run of Advanced LIGO and gamma-ray emission seen by either \\textit{Swift}-BAT or Fermi-GBM, similar to GW170817 and GRB 170817A. We introduce a new method using a combined ranking statistic to detect sources that do not produce significant gravitational-wave or gamma-ray burst candidates individually. The current version of this search can increase by 70% the detections of joint gravitational-wave and gamma-ray signals. We find one possible candidate observed by LIGO and Fermi-GBM, 1-OGC 151030, at a false alarm rate of 1 in 13 years. If astrophysical, this candidate would correspond to a merger at $187^{+99}_{-87}\\,$Mpc with source-frame chirp mass of $1.30^{+0.02}_{-0.03}\\,\\mathrm{M}_{\\odot}$. If we assume the viewing angle must be $<30^{\\circ}$ to be observed by \\textit{Fermi}-GBM, our estimate of the distance would become $224^{+88}_{-78}\\,$Mpc. By comparing the rate of binary neutron star mergers to our search-estimated rate of false alarms, we estimate that there is a 1 in 4 chance this candidate is astrophysical in origin.","url_abs":"http://arxiv.org/abs/1902.09496v1","url_pdf":"http://arxiv.org/pdf/1902.09496v1.pdf","source":{"archive":"pwc-archive (Hugging Face), CC BY-SA 4.0","snapshot":"2025-07-28","licence_url":"https://creativecommons.org/licenses/by-sa/4.0/legalcode","row_kind":"links_only","authors_date_abstract":"arXiv metadata, CC0 1.0 (https://info.arxiv.org/help/license), from the Kaggle arXiv metadata snapshot of 2026-09-12"},"code_links":[{"paper_slug":"potential-gravitational-wave-and-gamma-ray","repo_url":"https://github.com/gwastro/o1-gwgrb","is_official":1,"mentioned_in_paper":1,"mentioned_in_github":1,"framework":"none","reach":null}],"tasks":[],"methods":[],"datasets_introduced":[],"methods_introduced":[],"results":[],"syntology":{"syntology_url":null,"atlas_url":null,"mcp":null,"developers":"https://syntology.ai/developers"},"arxiv_metadata":null,"syntology_extracted_results":null}