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Are the infrared-faint radio sources pulsars?


Cameron, AD and Keith, M and Hobbs, G and Norris, RP and Mao, MY and Middelberg, E, Are the infrared-faint radio sources pulsars?, Monthly Notices of the Royal Astronomical Society, 415, (1) pp. 845-848. ISSN 1365-2966 (2011) [Refereed Article]

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DOI: doi:10.1111/j.1365-2966.2011.18769.x


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.

Item Details

Item Type:Refereed Article
Keywords:surveys; pulsars: general
Research Division:Physical Sciences
Research Group:Astronomical sciences
Research Field:Galactic astronomy
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the physical sciences
UTAS Author:Mao, MY (Miss Minnie Mao)
ID Code:75121
Year Published:2011
Web of Science® Times Cited:3
Deposited By:Mathematics and Physics
Deposited On:2012-01-11
Last Modified:2012-06-21

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