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Table 1

Principal characteristics of the selected X-ray bursts.

Source Burst ID Obs ID Start time L peak a E tot a τ a C pers C peak
(RXTE time) (1038 erg/s) (1039 erg) (s) (cts/s) (cts/s)

4U 1636-536 4 10088-01-08-030 94 671 416 2.68 5.54 20.7 788 9931
6 30053-02-02-02 146 144 682 2.89 1.78 6.2 679 9740
9 40028-01-02-00 162 722 852 2.94 1.84 6.3 569 9927
21 40028-01-18-000 208 401 523 2.79 2.35 7.0 737 9916
22 40028-01-18-00 208 429 016 2.76 1.85 6.7 574 10 000
23 40028-01-19-00 208 740 744 2.79 2.13 7.6 541 10 116
39 60032-01-09-00 242 286 131 1.46 1.33 9.1 417 7089
40 60032-01-09-01 242 295 310 1.06 1.14 10.9 425 5355
41 60032-01-10-00 242 708 641 2.00 1.50 7.5 428 9611
168 91024-01-30-10 374 626 248 2.98 2.06 6.9 473 9604

4U 1608-522 4 30062-02-01-000 133 389 809 1.43 1.35 9.1 643 9004
5 30062-01-01-00 133 625 123 2.34 2.32 9.9 543 10 339
21 70059-01-20-00 273 983 179 2.33 1.93 8.3 617 10 562
23 70059-03-01-000 274 421 898 2.39 3.16 13.2 517 10 549
24 70059-03-01-000 274 434 678 1.08 1.1 10.2 510 9528

Notes. Burst ID corresponds to the burst number in the Galloway et al. (2008) burst catalog, Obs ID to the identification number of the RXTE observation in which the burst can be found, Start time to the RXTE time of the burst peak used to define the date t = 0 in Sect. 2, Lpeak to the peak luminosity, Etot to the total energy, τ to the decay time constant, Cpers to the raw persistent count rate before the burst, and Cpeak to its value at burst peak. Etot for 4U 1636-536 and 4U 1608-522, respectively (Pandel et al. 2008; Nakamura et al. 1989).

(a)

Values taken from Galloway et al. (2008). Distances of 6 and 3.6 kpc were taken to compute the peak luminosity Lpeak and total energy

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