New pulsars discovered at 3-m wavelength

Astronomy and Astrophysics – Astronomy

Scientific paper

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Astronomical Spectroscopy, Northern Hemisphere, Pulsars, Radio Astronomy, Astronomical Coordinates, Radiant Flux Density, Radio Antennas, Radio Emission, Radio Telescopes, Radiometers, Wave Dispersion

Scientific paper

Results of a search of the northern sky for pulsars at a wavelength of 3 m are presented. Observations were carried out at 102.5 MHz with the BSA phased antenna array and a 16-channel radiometer with a 160-kHz channel bandwidth using four antenna beams. The coordinates, periods, dispersion measures and flux densities of the three pulsars discovered, PSR 1632+24, PSR 1839+56 and PSR 2110+27, are indicated, along with sample traces of individual pulses. It is pointed out that the three pulsars have nearly the same dispersion measure (24-27 pc/cu cm), relatively high flux densities (greater than 0.1 Jy), and apparently steeper spectra than the average pulsar.

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