Time-Resolved Optical Observations of PSR 1509-58
Shearer, A. · Sullivan, C. M. M. O' · Golden, A. · Garcia, P. V. R. · Redfern, M. · Danks, A. · Cullum, M.
Original · EN
Using time resolved 2-dimensional aperture photometry we have established that the optical candidate for PSR 1509-58 does not pulse. Our pulsed upper limits (mᵥ = 24.3 and mB = 25.7) put severe constraints on this being the optical counterpart. Furthermore the colours of the candidate star are consistent with a main sequence star at a distance of 2-4 kpc. The probability of a chance coincidence with a normal star and the difficulty of explaining the lack of pulsed emission leads us to conclude that this object is an intermediate field star.
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