... It is clear now, that there is new class of sky objects- S-Z "dark spots" without optical and XRAY counterparts (Lasensby, this volume) and for them only radio measurments are possible. ...
... The intent of the survey was to support the Uhuru X-ray satellite (launched in 1972) in an effort to identify the opticalcounterparts of newly detected x-ray sources. ...
... sense optical-radio) of the corresponding optical image (if any), the total separation, the image classification (``g'' galaxy, ``s'' stellar, ``f'' too faint to classify, ``m'' merged) and the apparent bj magnitude if the counterpart was found in the sky ...
... counterpart END -\ STOP - End of input FINISH -/ LIST <argument> - List of catalogs arguments: (Only the first character is enough) (default) All - All available catalogs Radio - All radio catalogs Infra-red - All catalogs of Infra-Red sources Objects ...
... We preferentially selected radio counterparts whose radio spectrum extrapolated to ... probable true coordinates of the radio counterparts we used positions from the FIRST ...