Radio-continuum study of the nearby sculptor group galaxies. Part 3: NGC 7793 at λ=12.2, 6 and 3 cm
MetadataShow full item record
We re-examine a series of archived centimetre radio-continuum observations (λ=16, 6 and 3 cm) focusing on NGC 7793 using the Australia Telescope Compact Array. These new images are both very sensitive (σ=0.011 mJy/beam) and feature reasonably high angular resolution (down to <3″). Using these images, a total of 76 discrete radio sources are identified, of which 57 have been classified. We also studied the radio component of the micro-quasar NGC7793-S26 which shows two distinct regions of somewhat steep spectral index (α) between −0.3 and −0.7.
Showing items related by title, author, creator and subject.
Banfield, J.; Wong, O.; Willett, K.; Norris, R.; Rudnick, L.; Shabala, S.; Simmons, B.; Snyder, C.; Garon, A.; Seymour, Nick; Middelberg, E.; Andernach, H.; Lintott, C.; Jacob, K.; Kapinska, A.; Mao, M.; Masters, K.; Jarvis, M.; Schawinski, K.; Paget, E.; Simpson, R.; Klöckner, H.; Bamford, S.; Burchell, T.; Chow, K.; Cotter, G.; Fortson, L.; Heywood, I.; Jones, T.; Kaviraj, S.; López-Sánchez, R.; Maksym, W.; Polsterer, K.; Borden, K.; Hollow, R.; Whyte, L. (2015)We present results from the first 12 months of operation of Radio Galaxy Zoo, which upon completion will enable visual inspection of over 170 000 radio sources to determine the host galaxy of the radio emission and the ...
Mignano, A.; Prandoni, I.; Gregorini, L.; Parma, P.; De Ruiter, H.; Wieringa, M.; Vettolani, G.; Ekers, Ronald (2008)Context. One of the most debated issues about sub-mJy radio sources, which are responsible for the steepening of the 1.4 GHz source counts, is the origin of their radio emission. Particularly interesting, from, this point ...
Bonafede, A.; Intema, Hubertus; Brüggen, M.; Vazza, F.; Basu, K.; Sommer, M.; Ebeling, H.; De Gasperin, F.; Röttgering, H.; Van Weeren, R.; Cassano, R. (2015)Radio haloes are synchrotron radio sources detected in some massive galaxy clusters. Their size of Mpc indicates that (re)acceleration processes are taking place in the host cluster. X-ray catalogues of galaxy clusters ...