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A search for optical bursts from the rotating radio transient J1819-1458 with ULTRACAM

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Dhillon, V. S., Marsh, T. R. and Littlefair, S. P. (2006) A search for optical bursts from the rotating radio transient J1819-1458 with ULTRACAM. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 372 (1). pp. 209-212. doi:10.1111/j.1365-2966.2006.10827.x ISSN 0035-8711.

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Official URL: http://dx.doi.org/10.1111/j.1365-2966.2006.10827.x

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Abstract

We report on the search for optical bursts from J1819-1458, a member of the recently discovered rotating radio transients (RRATs). J1819-1458 exhibits 3-ms bursts with a peak flux of f(nu)(1.4 GHz) = 3.6 Jy every similar to 3.4 min, implying that it is visible for only similar to 1 s per day at radio wavelengths. Assuming that the optical light behaves in a similar manner, the most-sensitive way of detecting RRATs is hence not to take long exposures of the field, but instead to capture individual bursts using a high-speed camera mounted on a large-aperture telescope. Using ULTRACAM on the 4.2-m William Herschel Telescope (WHT), we obtained 97 100 images of the field of J1819-1458, each of 18.1 ms exposure time and with essentially no dead-time between the frames. We find no evidence for bursts in u', g' and i' at magnitudes brighter than 15.1, 17.4 and 16.6 (5 sigma), corresponding to fluxes of less than 3.3, 0.4 and 0.8 mJy at 3560, 4820 and 7610 angstrom, respectively.

Item Type: Journal Article
Subjects: Q Science > QB Astronomy
Journal or Publication Title: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Publisher: BLACKWELL PUBLISHING
ISSN: 0035-8711
Official Date: 11 October 2006
Dates:
DateEvent
11 October 2006UNSPECIFIED
Volume: 372
Number: 1
Number of Pages: 4
Page Range: pp. 209-212
DOI: 10.1111/j.1365-2966.2006.10827.x
Publication Status: Published

Data sourced from Thomson Reuters' Web of Knowledge

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