{ "id": "1011.4342", "version": "v1", "published": "2010-11-19T04:25:40.000Z", "updated": "2010-11-19T04:25:40.000Z", "title": "A New Frequency-Luminosity Relation for Long GRBs?", "authors": [ "T. N. Ukwatta", "K. S. Dhuga", "D. C. Morris", "G. MacLachlan", "W. C. Parke", "L. C. Maximon", "A. Eskandarian", "N. Gehrels", "J. P. Norris", "A. Shenoy" ], "comment": "9 pages, 17 figures, 1 table; Accepted for publication in MNRAS", "categories": [ "astro-ph.HE" ], "abstract": "We have studied power density spectra (PDS) of 206 long Gamma-Ray Bursts (GRBs). We fitted the PDS with a simple power-law and extracted the exponent of the power-law (alpha) and the noise-crossing threshold frequency (f_th). We find that the distribution of the extracted alpha peaks around -1.4 and that of f_th around 1 Hz. In addition, based on a sub-set of 58 bursts with known redshifts, we show that the redshift-corrected threshold frequency is positively correlated with the isotropic peak luminosity. The correlation coefficient is 0.57 +/- 0.03.", "revisions": [ { "version": "v1", "updated": "2010-11-19T04:25:40.000Z" } ], "analyses": { "keywords": [ "long grbs", "frequency-luminosity relation", "power density spectra", "long gamma-ray bursts", "isotropic peak luminosity" ], "tags": [ "journal article" ], "publication": { "doi": "10.1111/j.1365-2966.2010.17944.x", "journal": "Monthly Notices of the Royal Astronomical Society", "year": 2011, "month": "Apr", "volume": 412, "number": 2, "pages": 875 }, "note": { "typesetting": "TeX", "pages": 9, "language": "en", "license": "arXiv", "status": "editable", "inspire": 878243, "adsabs": "2011MNRAS.412..875U" } } }