Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999newar..43..707c&link_type=abstract
New Astronomy Reviews, Volume 43, Issue 8-10, p. 707-710.
Astronomy and Astrophysics
Astronomy
2
Scientific paper
We present the VLBI map of a superluminal radio source AO 0235+164 at 5 GHz. This shows that the object's radio structure is dominated by a strong, nearly unresolved core with two extended asymmetric weak jet components. Based on the variation of its flux density with time at 5 GHz, we suggest that the flux density of AO 0235+164 exhibits two periodic variations: a shorter-period variation of /1.81+/-0.06 yr and a longer-period one of /3.64+/-0.08 yr. These two periodic variations could be the result of the joint action of jet outbursts and jet rotation.
Chen Yongshun John
Sjouwerman Lorant O.
Zhang Fu-Jing
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