Abstract
What we observe as an apparent superluminal motion is the resultant velocity of Hubble flow and a local ejection. Taking Hubble flow into account, one can explain, problems posed for the relativistic beaming model, such as the one-sidedness problem and the untolerable extension of the depromected structure of some superluminal sources; the misalignment of small-and large-scale jets can be analyzed more appropriately. A significant by-product of the present investigation is the initiation to find a new way to determine the value of the Hubble constantH 0, provided that one can observe the superluminal motion at much longer wavelengths, say, meter wavelengths.
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Gong (Kung), S.M. Kinematics of relativistic ejection with Hubble flow. Astrophys Space Sci 175, 23–33 (1991). https://doi.org/10.1007/BF00644422
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DOI: https://doi.org/10.1007/BF00644422