5 papers
A Flaring Megamaser in Mrk 348
A. B. Peck, H. Falcke, C. Henkel +4
We report new observations of the H2O megamaser in the Seyfert 2 galaxy Mrk 348. Following our initial detection in 2000 March using the Effelsberg 100 m telescope, re-analysis of…
Subparsec-scale HI in the nucleus of NGC 4151
C. G. Mundell, J. M. Wrobel, A. Pedlar +1
We present sensitive, high-resolution 21-cm VLBA+VLA observations of the radio jet and nuclear HI absorption in NGC 4151. The 25-mas (1.6-pc) resolution continuum image reveals a h…
Discovery of a very luminous megamaser during a radio flare in the Seyfert 2 galaxy Mrk 348
Heino Falcke, Christian Henkel, Alison B. Peck +3
We report the detection of a new H_2O megamaser in the Seyfert 2 galaxy Mrk 348 with the MPIfR 100 m telescope in Effelsberg. With an apparent isotropic luminosity of L_H2O ~ 420 L…
Radio Continuum and Emission Line Morphologies of Southern Seyfert Galaxies
Z. Tsvetanov, R. Morganti, R. A. E. Fosbury +2
We have collected emission line ([Oiii] 5007 and Halpha+[Nii]) and radio continuum images for a volume limited (cz <= 3600 km/s) sample of southern Seyfert galaxies. The optical da…
Localised Neutral Hydrogen Absorption Towards the Radio Jet of Markarian 6
J. F. Gallimore, A. J. Holloway, A. Pedlar +1
We present 0.15 arcsec (56 pc) resolution MERLIN observations of neutral hydrogen (HI) 21 cm absorption detected towards the arcsecond-scale radio jet of the Seyfert 1.5 galaxy Mar…