Pulsed optical emission from Geminga

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dc.creatorShearer, A.
dc.creatorGolden, A.
dc.creatorHarfst, S.
dc.creatorButler, R.
dc.creatorRedfern, R. M.
dc.creatorO'Sullivan, C. M.
dc.creatorBeskin, G. M.
dc.creatorNeizvestny, S. I.
dc.creatorNeustroev, V. V.
dc.creatorPlokhotnichenko, V. L.
dc.creatorCullum, M.
dc.creatorDanks, A.
dc.date1998-02-17
dc.date.accessioned2026-07-07T02:26:07Z
dc.date.available2026-07-07T02:26:07Z
dc.descriptionWe present optical data which shows that G", the optical counterpart of the gamma-ray pulsar Geminga, pulses in B with a period of 0.237 seconds. The similarity between the optical pulse shape and the gamma-ray light curve indicates that a large fraction of the optical emission is non-thermal in origin - contrary to recent suggestions based upon the total optical flux. The derived magnitude of the pulsed emission is m_B = 26.0 +/- 0.4. Whilst it is not possible to give an accurate figure for the pulsed fraction (due to variations in the sky background) we can give an upper limit of m_B ~ 27 for the unpulsed fraction.
dc.description5 pages, 3 figures, Latex, submitted to A&A
dc.identifierhttps://arxiv.org/abs/astro-ph/9802225
dc.identifierhttp://arxiv.org/abs/astro-ph/9802225
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/12142
dc.subjectAstrophysics
dc.titlePulsed optical emission from Geminga
dc.typetext

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