Implications of Phase-Resolved Optical Emission from Isolated Neutron Stars

Details Implications of Phase-Resolved Optical Emission from Isolated Neutron Stars Implications of Phase-Resolved Optical Emission from Isolated Neutron Stars

Dec 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998tx19.confe.257s&link_type=abstract

Abstracts of the 19th Texas Symposium on Relativistic Astrophysics and Cosmology, held in Paris, France, Dec. 14-18, 1998. Eds.:

Astronomy and Astrophysics

Astrophysics

Scientific paper

In the last two years the number of pulsars with confirmed optical pulsations has increased from 3 to 5, with new 'middle aged' candidate data coming to light, and several other 'upper limit' objects. Based upon this growing dataset, the implications for current theoretical models for both emission theory and neutron star structure is assessed. In particular through considerations of the resolved unpulsed predominately thermal optical flux we are able to constrain (R/d) for two nearby middle aged neutron stars, yielding upper limits for the radius of Geminga (<= 9.5 km) and the distance of PSR B0656+14 (~210 pc). >From the pulsed emission we are able to show that modifications to existing phenomenological models are required to take account of emission primarily near the light cylinder.

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