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High time-resolution spectroscopic imaging using intensified CCD detectors |
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| Authors: | J L A Fordham H Kawakami R M Michel R Much J R Robinson |
| Institution: | Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT;Mullard Space Science Laboratory, University College London, Holmbury St Mary, Dorking, Surrey RH5 6NT;Instituto de Astronomia, Observatorio Astronomico Nacional, Apartado Postal 877, Codigo Postal 22860, Ensenada BC, Mexico;Astrophysics Division, Space Science Department of ESA, PO Box 299, NL-2200 AG Noordwijk, the Netherlands |
| Abstract: | The micro‐channel plate intensified CCD photon counting detector developed at University College London 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, acquiring spectroscopic data on the Crab pulsar. The detector was phase locked to the pulsar period and a temporal resolution of 41.4 μs employed. The phase locking allowed the coaddition of time slices over a large number of pulsar periods to build up quantifiable spectroscopic data when observing in a flux-limited regime. |
| Keywords: | instrumentation: detectors methods: observational techniques: miscellaneous |