Observations of the millisecond pulsar PSR B1937 + 21 acquired in Summer 1997 with the Medicina cross telescope revealed two interesting features: the existence of long-lived microstructures persisting over several minutes, and a close relationship between the pulsar flux and pulse arrival times, due to refraction on a discrete inhomogeneity. The latter effect, though observed earlier at higher frequencies by the Nancay group, is rather peculiar at our low frequency. (C) 2001 MAIK "Nauka/Interperiodica".
Unusual features of the millisecond pulsar 1937+21 at 406.9 MHz
D'AMICO, NICOLO';
2001-01-01
Abstract
Observations of the millisecond pulsar PSR B1937 + 21 acquired in Summer 1997 with the Medicina cross telescope revealed two interesting features: the existence of long-lived microstructures persisting over several minutes, and a close relationship between the pulsar flux and pulse arrival times, due to refraction on a discrete inhomogeneity. The latter effect, though observed earlier at higher frequencies by the Nancay group, is rather peculiar at our low frequency. (C) 2001 MAIK "Nauka/Interperiodica".
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