845 citations · 13.3k across the 227 of their papers we have counts for
5 papers · 2 filters
Unprecedented extreme high-frequency radio variability in early-stage active galactic nuclei
E. Järvelä, T. Savolainen, M. Berton +9
We report on the discovery of one of the most extreme cases of high-frequency radio variability ever measured in active galactic nuclei (AGN), observed on timescales of days and ex…
Milliarcsecond Core Size Dependence of the Radio Variability of Blazars
Po Chih Hsu, Jun Yi Koay, Satoki Matsushita +6
Studying the long-term radio variability (timescales of months to years) of blazars enables us to gain a better understanding of the physical structure of these objects on sub-pars…
Multiple imaging of the quasar 2005+403 formed by anisotropic scattering
T. A. Koryukova, A. B. Pushkarev, S. Kiehlmann +1
We report on the low Galactic latitude () quasar 2005403, the second active galactic nuclei, in which we detected a rare phenomenon of multiple imaging induced by r…
The C-Band All-Sky Survey (C-BASS): New Constraints on the Integrated Radio Spectrum of M 31
Stuart E. Harper, Adam Barr, C. Dickinson +11
The Andromeda galaxy (M31) is our closest neighbouring spiral galaxy, making it an ideal target for studying the physics of the interstellar medium in a galaxy very similar to our…
COMAP Early Science: VIII. A Joint Stacking Analysis with eBOSS Quasars
Delaney A. Dunne, Kieran A. Cleary, Patrick C. Breysse +22
We present a new upper limit on the cosmic molecular gas density at obtained using the first year of observations from the CO Mapping Array Project (COMAP). COMAP data…