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20062026
most citedFirst Sagittarius A* Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole in the Center of the Milky Way

1.9k citations · 17.9k across the 145 of their papers we have counts for

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astro-ph2006★ 66 cited

VLBI observations of the most radio-loud, narrow-line quasar SDSS J094857.3+002225

Akihiro Doi, Hiroshi Nagai, Keiichi Asada +3

We observed the narrow-line quasar SDSS J094857.3+002225, which has the highest known radio loudness for a narrow-line Seyfert~1 galaxy (NLS1), at 1.7--15.4 GHz with the Very Long…

astro-ph2006★ 41 cited

The Kinematic and Spectral Ages of the Compact Radio Source CTD 93

Hiroshi Nagai, Makoto Inoue, Keiichi Asada +2

We present a study of the kinematic and spectral ages of the Gigahertz-Peaked Spectrum (GPS) source CTD~93. Measurements of the hot spot separation over 8.5 yr show evidence of an…