# New H2O masers in Seyfert and FIR bright galaxies

@article{Castangia2005NewHM,
title={New H2O masers in Seyfert and FIR bright galaxies},
author={P. Castangia and Andrea Tarchi and Christian Henkel and K. M. Menten Max-Planck-Institut fuer Radioastronomie and Bonn and INAF-Osservatorio Astronomico di Cagliari and Inaf Istituto di Radioastronomia and Bologna},
journal={Astronomy and Astrophysics},
year={2005},
volume={436},
pages={75-90}
}
Using the Effelsberg 100-m telescope, detections of four extragalactic water vapor masers are reported. Isotropic luminosities are ∼50, 1000, 1 and 230 Lfor Mrk 1066 (UGC 2456), Mrk 34, NGC 3556 and Arp 299, respectively. Mrk 34 contains by far the most distant and one of the most luminous water vapor megamasers so far reported in a Seyfert galaxy. The interacting system Arp 299 appears to show two maser hotspots separated by approximately 20 �� . With these new results and even more recent…

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