{ "id": "1506.06700", "version": "v1", "published": "2015-06-22T17:48:32.000Z", "updated": "2015-06-22T17:48:32.000Z", "title": "Burst Tails from SGR J1550-5418 Observed with Rossi X-ray Timing Explorer", "authors": [ "Sinem Sasmaz Mus", "Ersin Gogus", "Yuki Kaneko", "Manoneeta Chakraborty", "Berk Aydin" ], "comment": "10 pages, 7 figures, 4 tables, accepted for publication in ApJ", "categories": [ "astro-ph.HE" ], "abstract": "We present the results of our extensive search using the Bayesian block method for long tails following short bursts from a magnetar, SGR J1550-5418, over all RXTE observations of the source. We identified four bursts with extended tails, most of which occurred during its 2009 burst active episode. The durations of tails range between ~13 s and over 3 ks, which are much longer than the typical duration of bursts. We performed detailed spectral and temporal analysis of the burst tails. We find that the spectra of three tails show a thermal nature with a trend of cooling throughout the tail. We compare the results of our investigations with the properties of four other extended tails detected from SGR 1900+14 and SGR 1806-20 and suggest a scenario for the origin of the tail in the framework of the magnetar model.", "revisions": [ { "version": "v1", "updated": "2015-06-22T17:48:32.000Z" } ], "analyses": { "keywords": [ "rossi x-ray timing explorer", "burst tails", "extended tails", "bayesian block method", "tails range" ], "publication": { "doi": "10.1088/0004-637X/807/1/42" }, "note": { "typesetting": "TeX", "pages": 10, "language": "en", "license": "arXiv", "status": "editable", "inspire": 1377336 } } }