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Detection of 33.8 ms X-ray pulsations in SAX J0635+0533

G. Cusumano·M. C. Maccarone·L. Nicastro·B. Sacco·P. Kaaret
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Abstract

We revisited the BeppoSAX observation of SAX J0635+0533, suggested as a possible counterpart to the gamma-ray source 2EG J0635+0521. We have discovered a 33.8 ms pulsation from the source and derived an improved position, consistent with the location of the Be star proposed as a binary companion. We interpret the periodicity as the spin period of a neutron star in a binary system with a Be companion.

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G. Cusumano, M. C. Maccarone, L. Nicastro, B. Sacco, P. Kaaret. 1999-11-05. Detection of 33.8 ms X-ray pulsations in SAX J0635+0533. https://doi.org/10.1086/312413

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