Observations of SN1988e: A mature supernova |
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| Authors: | Gillian Pearce Bruce Patchett Paul Murdin Jeremy Allington-Smith |
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| Affiliation: | (1) Astrophysics Dept., Oxford University, Jesus College, Oxford, U.K.;(2) Astrophysics Division, Rutherford Appleton Laboratory, Chilton, Didcot, Oxfordshire, U.K.;(3) Rutherford Appleton Laboratory, Chilton, Didcot, Oxfordshire, U.K.;(4) Royal Greenwich Observatory, Herstmonceux Castle, Hailsham, Sussex, U.K.;(5) Physics Dept., University of Durham, U.K. |
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| Abstract: | We present the spectrum of the supernova SN1988e over the wavelength range 4750–9000 Å as recorded on 11 February, 1988. The spectrum was taken in one 2000 s exposure using the Faint Object Spectrograph on the 4.2 m William Herschel Telescope (WHT) at the Observatorio del Roque de los Muchachos.We conclude that SN1988e was a type I supernova, and that at the time of observation it had faded 7.5 mag from its predicted magnitude at maximum light. Spectra taken at such late stages in the light curve are comparatively rare, and are made possible only with the application of modern instrumentation. |
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