An optical and near infrared search for a pulsar in Supernova 1987A

Details An optical and near infrared search for a pulsar in Supernova 1987A An optical and near infrared search for a pulsar in Supernova 1987A

Dec 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990phdt.........5s&link_type=abstract

Ph.D. Thesis California Univ., Berkeley. Lawrence Berkeley Lab.

Computer Science

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Infrared Spectra, Near Infrared Radiation, Pulsars, Supernova 1987A, Calibrating, Detection, Luminosity, Photodiodes, Photometers, Visible Spectrum

Scientific paper

We describe a search for an optical pulsar in the remnant of Supernova 1987A. We have performed over one hundred separate observations of the supernova, covering wavelengths from 3500 angstroms to 1.8 microns, with sensitivity to pulsations as faint as magnitude 22.7. As of September 26, 1990, we have not seen evidence for pulsations due to a pulsar in the supernova. We discuss the implications of this result on predictions of pulsar optical luminosity. We have constructed for the search two photodiode detectors and a data system. We describe their design, calibration and performance. These detectors have allowed us to increase our sensitivity as much as a factor of 5 over standard photomultiplier tubes, and extend this search to near infrared wavelengths.

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