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Radio Observations of AGN in Low Surface Brightness Galaxies

Published online by Cambridge University Press:  01 June 2007

M. Das
Affiliation:
Raman Research Institute, Bangalore 560 080, India; email: mousumi@rri.res.in
S. S. McGaugh
Affiliation:
University of Maryland, College Park, MD 20742
N. Kantharia
Affiliation:
NCRA, TIFR, Post Bag 3, Ganeshkhind, Pune-411007, India
S. N. Vogel
Affiliation:
University of Maryland, College Park, MD 20742
Corresponding
E-mail address:
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Abstract

We present preliminary results of a study of the low frequency radio continuum emission from the nuclei of Giant Low Surface Brightness (LSB) galaxies. We have mapped the emission and searched for extended features such as radio lobes/jets associated with AGN activity. LSB galaxies are poor in star formation and generally less evolved compared to nearby bright spirals. This paper presents low frequency observations of 3 galaxies; PGC 045080 at 1.4 GHz, 610 MHz, 325MHz, UGC 1922 at 610 MHz and UGC 6614 at 610 MHz. The observations were done with the GMRT. Radio cores as well as extended structures were detected and mapped in all three galaxies; the extended emission may be assocated with jets/lobes associated with AGN activity. Our results indicate that although these galaxies are optically dim, their nuclei can host AGN that are bright in the radio domain.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2008

References

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