Coherent Pulsations and Burst Oscillations in the Millisecond Pulsar IGR J18245-2452/PSR J1824-2452I in M28

Riggio A;BURDERI, LUCIANO;Di Salvo T;D’Ai’ A;Papitto A;Iaria R;Robba N;SANNA, ANDREA;Bozzo E;Ferrigno C;Rea N;Pavan L.

2013-01-01

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Abstract

We analyzed Swift observations of the transient low-mass X-ray binary IGR J18245-2452 and millisecond radio pulsar PSR J1824-2452I in M28 (Atel #4925, #4927, #4929, #4934, #4959, #4960, #4961, #4964, #4981, #5003, #5031, #5045, #5068, #5069). Available Swift observations, performed in timing mode, with a time resolution of about 1.78 ms, and covering the period from 56389.92457 to 56389.93391 MJD(TDB), have been barycentered using the coordinates from the radio counterpart identified by the ATCA observation taken on 2013 April 5 (Atel #4981).