Bibcode
Agudo, I.; Bach, U.; Krichbaum, T. P.; Marscher, A. P.; Gonidakis, I.; Diamond, P. J.; Alef, W.; Graham, D.; Witzel, A.; Zensus, J. A.; Bremer, M.; Acosta-Pulido, J. A.; Barrena, R.
Referencia bibliográfica
Extragalactic Jets: Theory and Observation from Radio to Gamma Ray ASP Conference Series, Vol. 386, proceedings of the conference held 21-24 May, 2007 in Girdwood, Alaska, USA. Edited by Travis A. Rector and David S. De Young. San Francisco: Astronomical Society of the Pacific, 2008., p.249
Advertised on:
6
2008
Número de citas
2
Número de citas referidas
1
Descripción
NRAO 150 -- a compact and bright radio to mm source showing core/jet
structure-- has been recently identified as a quasar at redshift 1.52
through a near-IR spectral observation. To compute quantitative
estimates of the basic physical properties of the jet in the source, we
have analysed the ultra-high-resolution images from a new
sub-milliarcsecond-scale monitoring program of its structure at 86 GHz
and 43 GHz with the GMVA and the VLBA, respectively. An additional
archival and calibration 43 GHz-VLBA data set, covering from 1997 to
2007, has been used. Our data shows an extreme projected
counter-clock-wise jet swing of up to ˜11°/yr within the inner
˜61 pc of the jet, which is associated with a non-ballistic
superluminal motion of the jet within this region. We argue that the
magnetic field might play an important role in the dynamics of the jet
in NRAO 150, which is supported by the large values of the magnetic
field strength obtained from our first estimates. The extreme
characteristics of the jet swing make NRAO 150 a prime source to study
the jet wobbling phenomenon.