136 citations · 212 across the 4 of their papers we have counts for
4 papers
Recent Searches for the Radio Lines of NH_3 in Comets
J. Hatchell, M. K. Bird, F. F. S. van der Tak +1
Radio observations in the ammonia inversion lines of four comets, C/2001 A2 (LINEAR), 153P/Ikeya-Zhang, C/2001 Q4 (NEAT) and C/2002 T7 (LINEAR), were performed at the Effelsberg 10…
Red-shifted H2O emission in NGC 3079: more evidence for a pc-scale circumnuclear torus?
Y. Hagiwara, C. Henkel, W. A. Sherwood +1
Using the Effelsberg 100-m telescope, sensitive measurements of the H2O megamaser in NGC 3079 are presented. During 2000 - 2001, `high velocity' features are seen that are red-shif…
EVN+MERLIN Observations of Radio-Intermediate Quasars: Evidence for Boosted Radio-Weak Quasars
Heino Falcke, Alok Patnaik, William Sherwood
We present VLBI (EVN+MERLIN) observations of a sample of three low-redshift radio-intermediate PG quasars (RIQ) with flat and variable radio spectrum (III Zw 2, PG 1309+355, PG 220…
The Nature of Radio-Intermediate Quasars: What is Radio-Loud and what is Radio-Quiet?
Heino Falcke, William Sherwood, Alok Patnaik
We have performed quasi-simultaneous radio flux density measurements at 2.7 and 10 GHz for all PG quasars with radio flux densities between 4-200 mJy. We find that a large fraction…