Abstract
A search has been made for optical pulses from the 1.6-ms pulsar PSR1937 + 214, using the 3.9-m Anglo-Australian Telescope (AAT). Despite previously reported indications1 of pulsed emission at this period from the red star discussed by Djorgovski2, we now believe the results of the search to be negative with an upper limit on the R magnitude of the pulsed emission of ∼25. Furthermore, astrometric observations show that the red star is displaced about 2.4 arc s north of the pulsar position and, hence, that it is likely to be a chance association.
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Manchester, R., Peterson, B. & Wallace, P. Search for pulsed optical emission from the millisecond pulsar PSR1937 + 214. Nature 310, 569–572 (1984). https://doi.org/10.1038/310569a0
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DOI: https://doi.org/10.1038/310569a0
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