Chandra observations of the nearby spiral galaxy NGC6503
  We have observed the nearby spiral galaxy NGC6503 using Chandra. Seven discrete sources associated with the galaxy have been found, one of them coincident with its Liner-starburst nucleus. One of the sources corresponds to a ULX with Lx >~ 10e39 ergs/s. Previous ROSAT observations of the galaxy show that this source has varied by at least a factor 3 in the last 6 years. No evidence is found for strong diffuse emission in the nuclear region or the presence of a low luminosity AGN. 
P. Lira (1,2), R. Johnson (3), A. Lawrence (4) ((1) Universidad de   Chile, (2) Leicester University, (3) ESO, Chile, (4) If...