The spectral evolution of superluminal radio knots: a shock-in-jet model with prolonged supply.

Details The spectral evolution of superluminal radio knots: a shock-in-jet model with prolonged supply. The spectral evolution of superluminal radio knots: a shock-in-jet model with prolonged supply.

Apr 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996acaps..16..143q&link_type=abstract

Acta Astrophys. Sin., Vol. 16, No. 2, p. 143 - 153

Astronomy and Astrophysics

Astrophysics

5

Radio Sources: Superluminal Motions, Radio Sources: Jets, Radio Sources: Spectral Evolution, Blazars: Radio Bursts, Plasma Jets: Shock Waves

Scientific paper

A shock-in-jet model with prolonged supply is proposed to explain the general behaviour of the spectral evolution of superluminal radio knots. It is shown that the theoretical relationship between the turnover frequency νm and the turnover flux density Sm has the typical pattern of 3-stage evolution suggested by Valtaoja et al. (1992) and is well consistent with the evolutionary behaviour observed in the superluminal knot C4 of QSO 3C345. The model provides a deeper understanding of the universal spectral evolution of radio outbursts in blazars.

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