264 citations · 960 across the 41 of their papers we have counts for
6 papers · 2 filters
The simultaneous VLA observations of Sgr A* from 90 to 0.7 cm
T. An, J. -H. Zhao, X. -Y. Hong +4
We present a spectrum of Sgr A* observed simultaneously on June 17, 2003 at wavelengths from 90 to 0.7 cm with the VLA. In the spectrum, we also include the measurements of Sgr A*…
Multi-Frequency VLBI Observations of GHz-Peaked Spectrum Sources
S. Kameno, M. Inoue, Z. -Q. Shen +2
We report results of pentachromatic VLBI survey for 18 GHz-peaked spectrum sources. Spectral fitting at every pixel across five frequencies allows us to illustrate distribution of…
Tracking the curved jet in PKS 1502+106
T. An, X. Y. Hong, T. Venturi +2
We carried out a multifrequency and multiepoch study of the highly polarized quasar, PKS 1502+106 at radio frequencies. The analysis is based on an EVN dataset at 5 GHz, archive VL…
Evn, Merlin, and Vla Observations of Nrao530
X. Y. Hong, J. H. Zhao, T. An +4
We present images of NRAO530 observed with the EVN (VLBI) at 5 GHz, the MERLIN at 1 .6 and 5 GHz, and the VLA at 5 and 8 GHz showing the complex morphology on scales from pc to kpc…
The star formation history of Seyfert 2 nuclei
R. Cid Fernandes, Q. Gu, J. Melnick +5
We present a study of the stellar populations in the central ~ 200 pc of a large and homogeneous sample comprising 79 nearby galaxies, most of which are type 2 Seyferts. The star-f…
Spectral constraints on unidentified EGRET gamma-ray sources from COMPTEL MeV observations
S. Zhang, W. Collmar, W. Hermsen +1
We investigated the MeV properties of 173 unidentified or only tentatively identified EGRET sources listed in the third EGRET catalogue, by analyzing the simultaneously collected C…