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Phase locked Spectroscopic Imaging of the Crab Pulsar

Published online by Cambridge University Press:  12 April 2016

J.L.A. Fordham ,
J.R. Robinson ,
H. Kawakami ,
R. Michel  and
R. Much
J.L.A. Fordham
Affiliation:
Department of Physics & Astronomy, University College London, Gower Street, London WC1E 6BT, UK
J.R. Robinson
Affiliation:
Department of Physics & Astronomy, University College London, Gower Street, London WC1E 6BT, UK
H. Kawakami
Affiliation:
Mullard Space Science Laboratory, University College London, Holmbury St.Mary, Dorking, Surrey, RH5 6NT, UK
R. Michel
Affiliation:
Institute de Astronomia, Observatorio Astronomico Nacional, Apartado Postal 877, Codigo Postal 22860, Ensenada B.C., Mexico
R. Much
Affiliation:
Astrophysics Division, Space Science Department of ESA, PO Box 299, NL-2200 AG Noordwijk, Netherlands

Abstract

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The MIC photon counting detector developed at UCL has been upgraded to allow time resolved spectroscopic optical data to be acquired on periodical sources such as pulsars. First observing trials have been carried out on the Crab pulsar. The detector was phase locked to the pulsar period and a temporal resolution of 41.4μs employed. The phase locking allowed the co-addition of time slices over a large number of pulsar periods building up quantifiable spectroscopic data when observing in a flux limited regime.

Type
Part 2. Timing, General Relativity and Astrometry
Information
International Astronomical Union Colloquium , Volume 177: Pulsar Astronomy - 2000 and Beyond , 2000 , pp. 83 - 84
Copyright
Copyright © Astronomical Society of the Pacific 2000

References

Fordham, J.L.A., Bellis, J.G., Bone, D.A., Norton, T.J., 1991, SPIE Vol. 1449.Google Scholar
Much, R., Carraminana, A, Fordham, J., Kawakami, H., Michel, R., 2000, in ASP Conf. Ser. Vol. Pulsar Astronomy – 2000 and Beyond, ed. Kramer, M., Wex, N. & Wielebinski, R..Google Scholar