{ "id": "2209.13943", "version": "v1", "published": "2022-09-28T09:20:26.000Z", "updated": "2022-09-28T09:20:26.000Z", "title": "One-off and Repeating Fast Radio Bursts: A Statistical Analysis", "authors": [ "Hao-Yan Chen", "Wei-Min Gu", "Mouyuan Sun", "Tuan Yi" ], "comment": "10 pages, 6 figures, accepted for publication in ApJ", "categories": [ "astro-ph.HE" ], "abstract": "According to the number of detected bursts, fast radio bursts (FRBs) can be classified into two categories, i.e., one-off FRBs and repeating ones. We make a statistical comparison of these two categories based on the first FRB catalog of the Canadian Hydrogen Intensity Mapping Experiment Fast Radio Burst Project. Using the Anderson-Darling, Kolmogrov-Smirnov, and Energy statistic tests, we find significant statistical differences ($p$-value $<$ 0.001) of the burst properties between the one-off FRBs and the repeating ones. More specifically, after controlling for distance, we find that the peak luminosities of one-off FRBs are, on average, higher than the repeating ones; the pulse temporal widths of repeating FRBs are, on average, longer than the one-off ones. The differences indicate that these two categories could have distinct physical origins. Moreover, we discuss the sub-populations of FRBs and provide statistical evidence to support the existence of sub-populations in one-off FRBs and in repeating ones.", "revisions": [ { "version": "v1", "updated": "2022-09-28T09:20:26.000Z" } ], "analyses": { "keywords": [ "repeating fast radio bursts", "fast radio burst project", "experiment fast radio burst", "one-off frbs", "intensity mapping experiment fast" ], "note": { "typesetting": "TeX", "pages": 10, "language": "en", "license": "arXiv", "status": "editable" } } }