Physics – Optics
Scientific paper
Jan 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...276l..45c&link_type=abstract
Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 276, Jan. 15, 1984, p. L45-L47.
Physics
Optics
29
Astronomical Photometry, Charge Coupled Devices, Gamma Ray Astronomy, Neutron Stars, X Ray Sources, Binary Stars, Cassegrain Optics, Pulsars
Scientific paper
The results of a deep CCD search for the counterpart of the Einstein Observatory X-ray source 1E 0630+178, itself the probable counterpart of the COS B high-energy gamma source 2CG 195+04 ('Geminga'), are reported. An object has been found as the only candidate in the approximately 30-sq arcsec error box. Its magnitude, mv = about 21.3 + or - 0.2, yields a high fx/fv ratio which, coupled with other properties of the X-ray source, renders this an object of unique interest, especially if it is responsible for the high gamma flux.
Bignami Giovanni F.
Caraveo Patricia A.
Paul J. A.
Vigroux Laurant
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