volume 13, issue S337, P348-349 2017
DOI: 10.1017/s1743921317008390
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Bhal Chandra Joshi, Arun Naidu, Vishal Gajjar, Geoffrey A. E. Wright

Abstract: AbstractWe present simultaneous multi-frequency observations of PSR J1822–2256 for the first time, utilizing the unique capabilities of upgraded Giant Meterwave Radio Telescope (uGMRT). No emission is detected in about 10 % of pulses. At least two drift modes and a possibly third rare mode, occur for 66, 21 and 2 % pulses respectively (P3 ~ 17, 7.5 and 5 P0 respectively). The three drift modes and the nulls occur concurrently from 250 to 1500 MHz. Modal average profiles are distinct with their widths increasin…

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