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The spin periods of the neutron stars in most Low Mass X-ray Binary (LMXB)systems still remain undetected. One of the models to explain the absence ofcoherent pulsations has been the suppression of the beamed signal by Comptonscattering of X-ray photons by electrons in a surrounding corona. We point outthat simultaneously with wiping out the pulsation signal, such a corona willupscatter (pulsating or not) X-ray emission originating at and/or near thesurface of the neutron star leading to appearance of a hard tail of Comptonizedradiation in the source spectrum. We analyze the hard X-ray spectra of aselected set of LMXBs and demonstrate that the optical depth of the corona isnot likely to be large enough to cause the pulsations to disappear.Comment: 11 pages, accepted for publication in Ap

Is the Lack of Pulsations in Low‐Mass X‐Ray Binaries due to Comptonizing Coronae?