Detection of proper motion in OQ208?
Dallacasa D1; Liu Xiang2; Stanghellini C3; Bondi M3
Source PublicationChinese Physics Letters
AbstractWe report on an ongoing work aimed to detect the separation speed of the two hot-spots of the compact symmetric object OQ208. Comparing images at 8.4 GHz taken in 6 epoches between 1994 and 1997 we obtain an estimate of 0.058+/-0.038 mas/year as the relative motions between two components of the radio source. At the red-shift of OQ208 1 mas correspond to 1 pc, thus we obtain a projected jet speed of 0.095+/-0.062c. With an inclination of 45 degrees between the jets and the line of sight, we have an actual jet velocity of 0.134+/-0.088c and therefore the kinematic age of the source is so young of 320+/-210 years.
Document Type期刊论文
Affiliation1.Universita di Bologna
3.Istituto di Radioastronomia del CNR
Recommended Citation
GB/T 7714
Dallacasa D,Liu Xiang,Stanghellini C,et al. Detection of proper motion in OQ208?[J]. Chinese Physics Letters,2000,17(4):307.
APA Dallacasa D,Liu Xiang,Stanghellini C,&Bondi M.(2000).Detection of proper motion in OQ208?.Chinese Physics Letters,17(4),307.
MLA Dallacasa D,et al."Detection of proper motion in OQ208?".Chinese Physics Letters 17.4(2000):307.
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