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- Spanish National ObservatoryES106 papers
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4 papers · 2 filters
Spatially resolved origin of mm-wave linear polarization in the nuclear region of 3C 84
J. -Y. Kim, T. P. Krichbaum, A. P. Marscher +12
We report results from a deep polarization imaging of the nearby radio galaxy 3C84 (NGC1275). The source was observed with the Global Millimeter VLBI Array (GMVA) at 86…
Global millimeter VLBI array survey of ultracompact extragalactic radio sources at 86 GHz
Dhanya G. Nair, Andrei P. Lobanov, Thomas P. Krichbaum +9
(abridged) Very long baseline interferometry (VLBI) observations at 86GHz (wavelength, mm) reach a resolution of about 50 as, probing the collimation and acceleratio…
High-resolution radio imaging of two luminous quasars beyond redshift 4.5
S. Frey, O. Titov, A. E. Melnikov +2
Context. Radio-loud active galactic nuclei in the early Universe are rare. The quasars J0906+6930 at redshift z=5.47 and J2102+6015 at z=4.57 stand out from the known sample with t…
The limb-brightened jet of M87 down to 7 Schwarzschild radii scale
J. -Y. Kim, T. P. Krichbaum, R. -S. Lu +6
M87 is one of the nearest radio galaxies with a prominent jet extending from sub-pc to kpc-scales. Because of its proximity and large mass of the central black hole, it is one of t…