6533b859fe1ef96bd12b7948
RESEARCH PRODUCT
Millimeter VLBI of NGC 1052: Dynamics
Kadler32 MatthiasR. SchulzAnne Kathrin BaczkoJörn WilmsManel PeruchoEduardo Rossubject
Physicsradio continuum: galaxiesJet (fluid)Active galactic nucleusgalaxies: active; galaxies: nuclei; galaxies: jets; radio continuum: galaxies010308 nuclear & particles physicslcsh:Astronomygalaxies: activeAstronomyAstronomy and AstrophysicsAstrophysicsKinematicsgalaxies: jetsDisc galaxy01 natural sciencesGalaxylcsh:QB1-9910103 physical sciencesVery-long-baseline interferometryMillimetergalaxies: nuclei010303 astronomy & astrophysicsVery Long Baseline Arraydescription
The LINER galaxy NGC 1052 is an ideal target to study the innermost regions of active galactic nuclei (AGN), given its close distance of about 20 Mpc. The source was observed at 29 epochs from 2005 to 2009 with the Very Long Baseline Array (VLBA) at 43 GHz. Here, we present a kinematic study of its twin-jet system from a subset of 9 epochs at 43 GHz carried out in 2005 and 2006, finding a bright central feature as the dynamic center. The resulting mean velocities of β = v / c = 0 . 46 ± 0 . 08 and β = 0 . 69 ± 0 . 02 for the western and eastern jet, respectively, give hints towards higher velocities in the eastern jet.
year | journal | country | edition | language |
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2016-10-20 | Galaxies; Volume 4; Issue 4; Pages: 48 |