Record Details


Field	Value

Title	P986 - Targeted search of steep spectrum sources with the Ultra-Wideband receiver

Subject	Astronomical and Space Sciences not elsewhere classified

Description	Pulsars are neutron stars with strong magnetic fields. Radio emissions coming out from their magnetosphere form a beam and produce a pulse every time pointing towards us. Pulsars are extremely compact and dense, with diameters of about 10km and mass of about one solar mass. Studies of pulsars enable us to understand physics of dense matter and nature of gravitational fields. However, pulsars are not easy to find, and the fact that some of them are in binary systems makes it even harder to find the periodic signals. We propose to search for pulsars in radio images, where pulsars look like point sources. Two large radio surveys at different observing frequencies have been used to select pulsar candidates. Sources that are compact (point-like) and have flux densities larger at lower frequencies have been chosen, and we found that we can successfully identify known pulsars. Besides known pulsars, 32 sources with unknown nature have been selected and they are very likely to be pulsars. Therefore, we propose to use the Parkes telescope to observe these 32 candidates and search for their periodic signals.

Publisher	CSIRO

Date	2021-07-01

Identifier	csiro:P986

Language	eng

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