activity
20092025
most citedA VLBA survey of the core shift effect in AGN jets I. Evidence for dominating synchrotron opacity

186 citations · 2.1k across the 43 of their papers we have counts for

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Showing 2021Show all

5 papers · 1 filter

astro-ph.GA2021★ 13 cited

First Space-VLBI Observations of Sagittarius A*

Michael D. Johnson, Yuri Y. Kovalev, Mikhail M. Lisakov +3

We report results from the first Earth-space VLBI observations of the Galactic Center supermassive black hole, Sgr A*. These observations used the space telescope Spektr-R of the R…

astro-ph.HE2021★ 102 cited

MOJAVE XIX: Brightness Temperatures and Intrinsic Properties of Blazar Jets

D. C. Homan, M. H. Cohen, T. Hovatta +7

We present multi-epoch, parsec-scale core brightness temperature observations of 447 AGN jets from the MOJAVE and 2cm Survey programs at 15 GHz from 1994 to 2019. The brightness te…

astro-ph.HE2021★ 113 cited

MOJAVE: XVIII. Kinematics and Inner Jet Evolution of Bright Radio-Loud Active Galaxies

M. L. Lister, D. C. Homan, K. I. Kellermann +4

We have analyzed the parsec-scale jet kinematics of 447 bright radio-loud AGN, based on 15 GHz VLBA data obtained between 1994 August 31 and 2019 August 4. We present new total int…

astro-ph.GA2021★ 111 cited

Polarimetric properties of Event Horizon Telescope targets from ALMA

Ciriaco Goddi, Ivan Marti-Vidal, Hugo Messias +31

We present the results from a full polarization study carried out with ALMA during the first VLBI campaign, which was conducted in Apr 2017 in the 3mm and 1.3mm bands, in con…

astro-ph.GA2021★ 12 cited

Parsec-scale properties of the peculiar gigahertz-peaked spectrum quasar 0858-279

N. A. Kosogorov, Y. Y. Kovalev, M. Perucho +1

We performed multi-frequency studies on the gigahertz-peaked spectrum high-redshift quasar 0858-279. Initially, the source presented itself in the early VLBI images as a very pecul…