On the optical counterpart of 1E 1207.4 - 5209, the central X-ray source of a ring-shaped supernova remnant

Details On the optical counterpart of 1E 1207.4 - 5209, the central X-ray source of a ring-shaped supernova remnant On the optical counterpart of 1E 1207.4 - 5209, the central X-ray source of a ring-shaped supernova remnant

Apr 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992apj...389l..67b&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 389, April 20, 1992, p. L67-L69.

Astronomy and Astrophysics

Astrophysics

15

K Stars, Neutron Stars, Supernova Remnants, X Ray Sources, Exosat Satellite, Heao 1

Scientific paper

Exosat and Einstein HR I observations of the unresolved X-ray source near the geometrical center of the shell-like SNR PKS 1209 - 52 are reported. The observations reveal the presence of only two objects in and near the recently revised error box. Of these, the brightest was already known to be a field K star. Surprisingly, spectroscopy of the fainter object also reveals it to be a normal K star. The X-ray source counterpart remains unseen down to m(v) = 24 or less, in spite of its accurate position in a relatively uncrowded field.

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