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Are the infrared-faint radio sources pulsars?
journal contributionposted on 2023-05-17, 09:52 authored by Cameron, AD, Keith, M, Hobbs, G, Norris, RP, Mao, MY, Middelberg, E
Infrared-faint radio sources (IFRS) are objects which are strong at radio wavelengths but undetected in sensitive Spitzer observations at infrared wavelengths. Their nature is uncertain and most have not yet been associated with any known astrophysical object. One possibility is that they are radio pulsars. To test this hypothesis we undertook observations of 16 of these sources with the Parkes Radio Telescope. Our results limit the radio emission to a pulsed flux density of less than 0.21 mJy (assuming a 50 per cent duty cycle). This is well below the flux density of the IFRS. We therefore conclude that these IFRS are not radio pulsars.
Publication titleMonthly Notices of the Royal Astronomical Society
Department/SchoolSchool of Natural Sciences
PublisherWiley-Blackwell Publishing Ltd.
Place of publicationUnited Kingdom
Rights statementThe definitive published version is available online at: http://www3.interscience.wiley.com/