Absolute timing of the Crab Pulsar at optical wavelengths with STJs

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dc.creatorOosterbroek, T.
dc.creatorde Bruijne, J. H. J.
dc.creatorMartin, D.
dc.creatorVerhoeve, P.
dc.creatorPerryman, M. A. C.
dc.creatorErd, C.
dc.creatorSchulz, R.
dc.date2006-06-07
dc.date.accessioned2026-07-07T07:12:09Z
dc.date.available2026-07-07T07:12:09Z
dc.descriptionWe have observed the Crab Pulsar in the optical with S-Cam, an instrument based on Superconducting Tunneling Junctions (STJs) with $μ$s time resolution. Our aim was to study the delay between the radio and optical pulse. The Crab Pulsar was observed three times over a time span of almost 7 years, on two different locations, using three different versions of the instrument, and using two different GPS units. We consistently find that the optical peak leads the radio peak by 49$\pm$90, 254$\pm$170, and 291$\pm$100 $μ$s. On assumption of a constant optical lead, the weighted-average value is $\sim$170 $μ$s, or when rejecting (based on a perhaps questionable radio ephemeris) the first measurement, 273$\pm$100 $μ$s.
dc.description5 pages, 2 figures, accepted for publication in Astronomy & Astrophysics
dc.identifierhttps://arxiv.org/abs/astro-ph/0606146
dc.identifierhttp://arxiv.org/abs/astro-ph/0606146
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/111983
dc.subjectAstrophysics
dc.titleAbsolute timing of the Crab Pulsar at optical wavelengths with STJs
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