Multifrequency VLBA observations of two compact symmetric objects | Zendy

Rastello S. | Zendy; Dallacasa D. | Zendy; Orienti M. | Zendy

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Multifrequency VLBA observations of two compact symmetric objects

Author(s) -

Rastello S.,

Dallacasa D.,

Orienti M.

Publication year - 2016

Publication title -

astronomische nachrichten

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.394

H-Index - 63

eISSN - 1521-3994

pISSN - 0004-6337

DOI - 10.1002/asna.201512262

Subject(s) - physics , astrophysics , kinematics , galaxy , spectral line , absorption (acoustics) , synchrotron , optics , astronomy , classical mechanics

We present the results of multifrequency VLBA observations of J1944+5448 and J0111+3906. These sources are compact symmetric objects, completely embedded in the narrow line region of the host galaxy. Multi‐epoch observations allowed us to derive the hot‐spot separation speed that was used to estimate the kinematic age of both sources. Their asymmetric shape is likely due to an inhomogeneous ambient medium with which these sources interact. Finally we present the results on the spectral analysis of J0111+3906 whose spectrum is fitted with either a synchrotron self‐absorption mechanism or a free free absorption model. (© 2016 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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