Hostname: page-component-7c8c6479df-r7xzm Total loading time: 0 Render date: 2024-03-29T00:45:33.137Z Has data issue: false hasContentIssue false

Investigating the nature of low-luminosity extragalactic H2O masers

Published online by Cambridge University Press:  01 March 2007

Paola Castangia
Affiliation:
INAF-Osservatorio Astronomico di Cagliari, Loc. Poggio dei Pini, Strada 54, 09012 Capoterra (CA), Italy email: pcastang@ca.astro.it Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
A. Tarchi
Affiliation:
INAF-Osservatorio Astronomico di Cagliari, Loc. Poggio dei Pini, Strada 54, 09012 Capoterra (CA), Italy email: pcastang@ca.astro.it
C. Henkel
Affiliation:
Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
K. M. Menten
Affiliation:
Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

We have searched for 22 GHz water maser emission in a sample of FIR bright galaxies and detected two new kilomaser sources. The newly detected masers have been promptly followed-up using interferometric observations to derive positions and constraints on the size and brightness temperature of the emitting spots. Here we report results related to the newly detected kilomasers, also including the well-known kilomaser source in in NGC 253. These are discussed within the framework of the kilomaser/megamaser dichotomy.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2008

References

Castangia, P. 2006, PhD Thesis, “Water masers in active galaxies”, Univ. of CagliariGoogle Scholar
Henkel, C., Peck, A. B., Tarchi, A., Nagar, N.M, Braatz, J. A., Castangia, P., & Moscadelli, L. 2005, A&A 436, 75Google Scholar
Henkel, C., Wouterloot, J. G. A., & Bally, J. 1986 A&A 155, 193Google Scholar
Hofner, P., Baan, W. A., & Takano, S. 2006 AJ 119, 1592Google Scholar
Tarchi, A., Henkel, C., Peck, A. B., & Menten, K. M. 2002 A&A 385, 1049Google Scholar
Ulvestad, J. S., & Antonucci, R. R. J. 1997 ApJ 488, 621CrossRefGoogle Scholar