Proceedings of the International Astronomical Union

Contributed Papers

Radio Observations of the AGN and Gas in Low Surface Brightness Galaxies

M. Dasa1, K. O'Neila2, N. Kanthariaa3, S. N. Vogela4 and S. S. McGaugha4

a1 Raman Research Institute, Bangalore 560 080, India; email:

a2 NRAO, P.O. Box 2, Green Bank, WV 24944

a3 NCRA, TIFR, Post Bag 3, Ganeshkhind, Pune-411007, India

a4 University of Maryland, College Park, MD 20742


LSB galaxies have low metallicities, diffuse stellar disks, and massive HI disks. We have detected molecular gas in two giant LSB galaxies, UGC 6614 and F568-6. A millimeter continuum source has been detected in UGC 6614 as well. At centimeter wavelengths we have detected and mapped the continuum emission from the giant LSB galaxy 1300+0144. The emission is extended about the nucleus and is most likely originating from the AGN in the galaxy. The HI gas distribution and velocity field in 1300+0144 was also mapped. The HI disk extends well beyond the optical disk and appears lopsided in the intensity maps.


  • galaxies: ISM;
  • galaxies: active;
  • radio continuum: galaxies