... refinement of link between the radio and optical coordinate systems (de Vegt et al ... of from -17 to +80 , centered in the optical CCD-image of faint astrometric ERS ... by PG method at the astrograph (AG) telescopes, the rest at the Axial meridian ...
... II · · · · · · model: UMAX PowerLook II optical resolution: 600 ppi number of bits ... i900 · · · · · · model: UMAX PowerLook II optical resolution: 3200 ppi number of ...
... Changing to the new data acquisition method significantly enhanced the capabilities of the telescope: it increased the limiting magnitude of the telescope, the number of observations, and the accuracy of the results obtained (Izmailov et al., ...
... the optical depth for synchrotron self-absorption is unity, Sp is the flux density at that frequency, is the angular size of the radio source, b() is a numerical coefficient that depends on the spectral index of the synchrotron source in the optically ...