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International Letters of Chemistry, Physics and Astronomy
Volume 58

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Hotspot Advance Speed - Hotspot Size/Core-Hotspot Length Relation

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Abstract:

We examined the evolution of extragalactic radio sources using the observed core-hotspot length and hotspot size. Analysis indicates a fairly strong positive correlation in the ratio of core-hotspot length to hotspot size between that of the approaching arm and the receding arm with a correlation coefficient of r ~ 0.7. Simple kinematic consideration enabled us to obtain an expression to constrain the advance speed of hotspots. In general, the average projected hotspot advance speed estimated for our sample ranges from 0.13 ≤β≤0.40

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Periodical:
International Letters of Chemistry, Physics and Astronomy (Volume 58)
Pages:
40-46
Citation:
C.C. Onuchukwu "Hotspot Advance Speed - Hotspot Size/Core-Hotspot Length Relation", International Letters of Chemistry, Physics and Astronomy, Vol. 58, pp. 40-46, 2015
Online since:
September 2015
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