This thesis furthermore describes two smaller projects; attempts to detect pulsars as binary companions to subdwarf-B stars and an attempt to detect pulsed radio emission from the nearby pulsar Geminga. We were able to exclude pulsed radio emission from the sdB binary companions to a high degree of certainty. Our very sensitive observation of Geminga failed to detect pulsed radio emission, despite earlier claims. We conclude that those earlier detections were likely spurious, but leave open the possibility that Geminga is an intermittent radio source that turned off.
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