A search for the optical counterpart of the binary millisecond pulsar PSR 1855+09

Details A search for the optical counterpart of the binary millisecond pulsar PSR 1855+09 A search for the optical counterpart of the binary millisecond pulsar PSR 1855+09

May 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989mnras.238p..25c&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 238, May 1, 1989, p. 25P-28P.

Astronomy and Astrophysics

Astronomy

23

Binary Stars, Companion Stars, Pulsars, Stellar Evolution, Visual Observation, White Dwarf Stars, Astrometry, Charge Coupled Devices, Neutron Stars, Radio Stars

Scientific paper

Optical observations of the field of PSR 1855+09 are reported, including accurate astrometry and deep CCD imaging. Contrary to an earlier report no optical counterpart of PSR 1855+09 is detected, and a lower limit of m(v) = 25.4 to the apparent visual magnitude of the white dwarf companion star is found. The results suggest that the age of the neutron star is in excess of about 1.9 x 10 to the 9th yr, reinforcing the idea that old neutron stars must retain a magnetic field about 10 to the 9th G.

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