122 citations · 464 across the 10 of their papers we have counts for
3 papers · 1 filter
X-ray spectral components of the blazar and binary black hole candidate OJ 287 (2005-2020)
S. Komossa, D. Grupe, M. L. Parker +12
We present a comprehensive analysis of all XMM-Newton spectra of OJ 287 spanning 15 years of X-ray spectroscopy of this bright blazar. We also report the latest results from our de…
Persistent Non-Gaussian Structure in the Image of Sagittarius A* at 86 GHz
S. Issaoun, M. D. Johnson, L. Blackburn +26
Observations of the Galactic Center supermassive black hole Sagittarius A* (Sgr A*) with very long baseline interferometry (VLBI) are affected by interstellar scattering along our…
RadioAstron reveals a spine-sheath jet structure in 3C 273
G. Bruni, J. L. Gómez, L. Vega-García +13
We present Space-VLBI RadioAstron observations at 1.6 GHz and 4.8 GHz of the flat spectrum radio quasar 3C 273, with detections on baselines up to 4.5 and 3.3 Earth Diameters, resp…