There remain several definitive γ-ray pulsars that are as yet undetected in the optical regime. A classic case is the pulsar PSR B 1951+32, associated with the complex CTB 80 SNR. Previous ground based high speed 2-d optical studies have ruled out candidates to mv ∼ 24. 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 mv ∼ 25.5-26, and another optical counterpart candidate nearby at mv ∼ 24.5. We assess the reality of these counterpart candidates in the context of existing models of pulsar emission.
- ISM: individual objects: CTB 80
- ISM: supernova remnants
- Stars: pulsars: general
- Stars: pulsars: individual: PSR B1951+32
ASJC Scopus subject areas
- Astronomy and Astrophysics
- Space and Planetary Science