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A search for optical bursts from the rotating radio transient J1819−1458 with ULTRACAM - II. Simultaneous ULTRACAM-Lovell Telescope observations
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Dhillon, V. S., Keane, E. F., Marsh, T. R., Stappers, B. W., Copperwheat, C. M., Hickman, R. D. G., Jordan, C. A., Kerry, P., Kramer, M., Littlefair, S. P., Lyne, A. G., Mignani, R. 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. doi:10.1111/j.1365-2966.2011.18663.x ISSN 0035-8711.
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Official URL: http://dx.doi.org/10.1111/j.1365-2966.2011.18663.x
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 | ||||
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Subjects: | Q Science > QB Astronomy | ||||
Divisions: | Faculty of Science, Engineering and Medicine > 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 | ||||
ISSN: | 0035-8711 | ||||
Official Date: | July 2011 | ||||
Dates: |
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Volume: | Vol.414 | ||||
Number: | No.4 | ||||
Page Range: | pp. 3627-3632 | ||||
DOI: | 10.1111/j.1365-2966.2011.18663.x | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Funder: | Science and Technology Facilities Council (Great Britain) (STFC) |
Data sourced from Thomson Reuters' Web of Knowledge
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