{ "id": "1312.5637", "version": "v2", "published": "2013-12-19T17:02:14.000Z", "updated": "2014-11-23T07:15:46.000Z", "title": "Model-dependent estimate on the connection between fast radio bursts and ultra-high energy cosmic rays", "authors": [ "Xiang Li", "Bei Zhou", "Hao-Ning He", "Yi-Zhong Fan", "Da-Ming Wei" ], "comment": "Fig.1 is added to show the possibility distribution, as a function of maximal gravitational mass, of forming supramassive neutron stars in the double neutron star mergers. Major conclusions are unchanged", "journal": "The Astrophysical Journal, 797, 33 (2014)", "categories": [ "astro-ph.HE" ], "abstract": "The existence of fast radio bursts (FRBs), a new type of extragalatic transients, has been established recently and quite a few models have been proposed. In this work we discuss the possible connection between the FRB sources and ultra-high energy ($>10^{18}$ eV) cosmic rays. We show that in the blitzar model and the model of merging binary neutron stars, the huge energy release of each FRB central engine together with the rather high rate of FRBs, the accelerated EeV cosmic rays may contribute significantly to the observed ones. In other FRB models including for example the merger of double white dwarfs and the energetic magnetar radio flares, no significant EeV cosmic ray is expected. We also suggest that the mergers of double neutron stars, even if they are irrelevant to FRBs, may play a non-ignorable role in producing EeV cosmic ray protons if supramassive neutron stars were formed in a good fraction of mergers and the merger rate is $\\gtrsim 10^{3}~{\\rm yr^{-1}~ Gpc^{-3}}$. Such a possibility will be unambiguously tested in the era of gravitational wave astronomy.", "revisions": [ { "version": "v1", "updated": "2013-12-19T17:02:14.000Z", "title": "Cosmological fast radio bursts and ultra-high energy cosmic rays", "abstract": "The existence of fast radio bursts (FRBs), a new type of cosmological transients, has been established recently. The report of two FRB candidates following two long Gamma-ray Bursts (GRBs) in a search for possible connection between FRBs and GRBs, if confirmed in the future, will favor the origin of delayed collapse of supramassive neutron star (SMNS) to a black hole. The energy injected into the surrounding material by a SMNS will be in order of 1e52 erg unless the gravitational wave radiation is dominant. Energetic forward shock will be driven and ultra-high energy cosmic rays can be accelerated. Moreover, benefit from a very high rate of FRBs (i.e., 1e4 sky^-1 day^-1), these ultra-high energy cosmic rays likely contribute significantly to the observed ones. We also suggest that the mergers of double neutron stars, even if they are irrelevant to FRBs, can play an important role in producing 1e18~1e20 eV cosmic rays if SMNSs were formed in a good fraction of mergers and the merger rate is 1e3 yr^-1 Gpc^-3. Such a possibility will be unambiguously tested in the era of gravitational wave astronomy.", "comment": "4 pages", "journal": null, "doi": null }, { "version": "v2", "updated": "2014-11-23T07:15:46.000Z" } ], "analyses": { "keywords": [ "ultra-high energy cosmic rays", "cosmological fast radio bursts", "neutron star", "gravitational wave", "long gamma-ray bursts" ], "tags": [ "journal article" ], "publication": { "doi": "10.1088/0004-637X/797/1/33", "journal": "The Astrophysical Journal", "year": 2014, "month": "Dec", "volume": 797, "number": 1, "pages": 33 }, "note": { "typesetting": "TeX", "pages": 4, "language": "en", "license": "arXiv", "status": "editable", "inspire": 1272814, "adsabs": "2014ApJ...797...33L" } } }