Detection of new optical counterpart candidates to psr b1951+32 with hst/wfpc2
Butler, R. F.
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Butler, R. F. Golden, A.; Shearer, A. (2002). Detection of new optical counterpart candidates to psr b1951+32 with hst/wfpc2. Astronomy & Astrophysics 395 (3), 845-851
There remain several definitive gamma-ray pulsars that are as yet undetected in the optical regime. A classic case is the pulsar PSR B1951+32, associated with the complex CTB 80 SNR. Previous ground based high speed 2-d optical studies have ruled out candidates to m(V) similar to24. Hester (2000a) has reported an analysis of archival HST/WFPC2 observations of the CTB 80 complex which suggest a compact synchrotron nebula coincident with the pulsar's radio position. Performing a similar analysis, we have identified a possible optical counterpart within this synchrotron nebula at m(V) similar to 25.5-26, and another optical counterpart candidate nearby at m(V) similar to 24.5. We assess the reality of these counterpart candidates in the context of existing models of pulsar emission.