A deep optical study of the field of IE 0630 + 178

Details A deep optical study of the field of IE 0630 + 178 A deep optical study of the field of IE 0630 + 178

Aug 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...319..358b&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 319, Aug. 1, 1987, p. 358-361.

Astronomy and Astrophysics

Astrophysics

56

Astronomical Spectroscopy, Infrared Spectra, Visible Spectrum, X Ray Sources, Charge Coupled Devices, Hertzsprung-Russell Diagram, Neutron Stars

Scientific paper

A further optical/IR investigation of the HRI error-box of the X-ray source 1E 0630 + 178, proposed as the counterpart of Geminga (2CG 195 + 04), is presented. After recognizing that the previously suggested m of about 21 object (also called a G candidate) is probably excluded by the recent data, deep CCD data of the region are presented and the two very faint objects which appear compatible with the X-ray position are discussed. No evidence of proper motion is seen, contrary to previous reports. Possible interpretations of this peculiar L(x)/L(v) greater than 1000 X-ray source are then discussed, in the light of the gamma-ray emission.

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