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Ros Ibarra, Eduardo; Marcaide Osoro, Juan María; Guirado Puerta, Jose Carlos; Pérez Torres, Miguel Ángel | |||
Aquest document és un/a article, creat/da en: 2001 | |||
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We observed the thirteen extragalactic radio sources of the S5 polar cap sample at 8.4GHz with the Very Long Baseline Array, on 1997.93 and 1999.41. We present the maps from those two epochs and briefly discuss the morphological changes experimented by some of the radio sources in the 1.4 yr elapsed. These results correspond to the first two epochs at 8.4GHz of a program directed to study the absolute kinematics of the radio source components of the members of the sample by means of phase delay astrometry at 8.4, 15 and 43GHz. | |||
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