{ "id": "1711.08206", "version": "v1", "published": "2017-11-22T10:12:55.000Z", "updated": "2017-11-22T10:12:55.000Z", "title": "The formation rate of short gamma-ray bursts and gravitational waves", "authors": [ "G. Q. Zhang", "F. Y. Wang" ], "comment": "29 pages, 8 figures, 2 tables, accepted for publication in ApJ", "categories": [ "astro-ph.HE", "astro-ph.CO" ], "abstract": "In this paper, we study the luminosity function and formation rate of short gamma-ray bursts (sGRBs). Firstly, we derive the $E_p-L_p$ correlation using 16 sGRBs with redshift measurements and determine the pseudo redshifts of 284 Fermi sGRBs. Then, we use the Lynden-Bell c$^-$ method to study the luminosity function and formation rate of sGRBs without any assumptions. A strong evolution of luminosity $L(z)\\propto (1+z)^{4.47}$ is found. After removing this evolution, the luminosity function is $ \\Psi (L) \\propto L_0 ^ {- 0.29 \\pm 0.01} $ for dim sGRBs and $ \\psi (L) \\propto L_0 ^ {- 1.07 \\pm 0.01} $ for bright sGRBs, with the break point $8.26 \\times 10^{50} $ erg s$^{-1}$. We also find that the formation rate decreases rapidly at $z<1.0$, which is different with previous works. The local formation rate of sGRBs is 7.53 events Gpc$^{-3}$ yr$^{-1}$. Considering the beaming effect, the local formation rate of sGRBs including off-axis sGRBs is $ 203.31^{+1152.09}_{-135.54} $ events Gpc$^{-3}$ yr$^{-1}$. We also estimate that the event rate of sGRBs detected by the advanced LIGO and Virgo is $0.85^{+4.82}_{-0.56} $ events yr$^{-1}$ for NS-NS binary.", "revisions": [ { "version": "v1", "updated": "2017-11-22T10:12:55.000Z" } ], "analyses": { "keywords": [ "short gamma-ray bursts", "gravitational waves", "luminosity function", "local formation rate", "events gpc" ], "note": { "typesetting": "TeX", "pages": 29, "language": "en", "license": "arXiv", "status": "editable" } } }