Dhillon, V. S., Keane, E. F., Marsh, T. R., Stappers, B. W., Copperwheat, C. M., Hickman, R. D. G. (Richard D. G.), Jordan, C. A., Kerry, P. (Paul), Kramer, M. (Michael), 1967-, Littlefair, S. P., Lyne, A. G., Mignani, R. P. (Roberto P.) and Shearer, Andrew. (2011) A search for optical bursts from the rotating radio transient J1819−1458 with ULTRACAM - II. Simultaneous ULTRACAM-Lovell Telescope observations. Monthly Notices of the Royal Astronomical Society, Vol.414 (No.4). pp. 3627-3632. ISSN 0035-8711

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Abstract

The rotating radio transient (RRAT) J1819-1458 exhibits similar to 3ms bursts in the radio every similar to 3 min, implying that it is visible for only similar to 1 s per day. Assuming that the optical light behaves in a similar manner, long exposures of the field would be relatively insensitive due to the accumulation of sky photons. A much better way of detecting optical emission from J1819-1458 would then be to observe with a high-speed optical camera simultaneously with radio observations, and co-add only those optical frames coincident with the dispersion-corrected radio bursts. We present the results of such a search, using simultaneous ULTRACAM and Lovell Telescope observations. We find no evidence for optical bursts in J1819-1458 at magnitudes brighter than i' = 19.3 (5 sigma limit). This is nearly 3 mag fainter than the previous burst limit, which had no simultaneous radio observations.

Item Type:	Journal Article
Subjects:	Q Science > QB Astronomy
Divisions:	Faculty of Science > Physics
Library of Congress Subject Headings (LCSH):	Neutron stars, Pulsars, CCD cameras, Radio astronomy
Journal or Publication Title:	Monthly Notices of the Royal Astronomical Society
Publisher:	Wiley-Blackwell Publishing, Inc
ISSN:	0035-8711
Date:	July 2011
Volume:	Vol.414
Number:	No.4
Page Range:	pp. 3627-3632
Identification Number:	10.1111/j.1365-2966.2011.18663.x
Status:	Peer Reviewed
Publication Status:	Published
Funder:	Science and Technology Facilities Council (Great Britain) (STFC)
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URI:	http://wrap.warwick.ac.uk/id/eprint/38674

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