An Interferometric Study of HCN in Comet Hale-Bopp (C/1995 O1)

  title={An Interferometric Study of HCN in Comet Hale-Bopp (C/1995 O1)},
  author={Jeffrey Matthew Veal and Lewis E. Snyder and Melvyn Wright and Laura M. Woodney and Patrick Neil Palmer and Jerald R. Forster and Imke de Pater and Michael F. A’Hearn and Yeou-Fuh Kuan},
We observed comet Hale-Bopp in HCN emission at 88.63 GHz using the BIMA array. We present images of the HCN emission with 9'' angular and 0.33 km s-1 spectral resolution for 12 days between 1997 March and April. These images show changes in the HCN distribution on short-term, daily, and weekly scales. There is a general trend of increasing brightness as the comet approaches the Sun. We investigate the evidence for jets through the characteristics of distinct emission spurs that appear in images… CONTINUE READING