HCN in the inner envelope of χ Cygni

  title={HCN in the inner envelope of χ Cygni},
  author={D. Duari and Jennifer Hatchell},
We have detected the(0, 11c, 0) J = 3–2 and (0, 0, 0) J = 8–7 transitions of HCN towards the S star χ Cygni. The excitation requirements of these transitions are too high to be satisfied in the outer envelope of the star, and the emission must originate within∼< 20 stellar radii, ie. the molecule must be forming close to the star. This conclusion is… CONTINUE READING