SIMBAD references

We used the CFH12K wide field camera to survey the carbon star population of NGC 185 using the CN-TiO technique. 145 C stars are identified with a mean <I≥19.99±0.05, corresponding to <M_I≥-4.41±0.05, a mean luminosity similar to what was recently found for the C star population of NGC 147. The stellar surface density profile of NGC 185 follows a power law with an exponential scale length of 2.53±0.07'. The surface density of C stars follows also a power law but with a smaller scale length, 1.56±0.06, demonstrating that the intermediate-age population of NGC 185 is more concentrated than its old population. A tidal radius, r_t=22.5±2.2' is determined from red giant star counts. The C/M ratio of NGC 185 is 0.17±0.02 with no apparent sign of a radial gradient. We compare the carbon star populations of NGC 185 and NGC 147 to conclude that it is unlikely that they form a close pair.