Positive feedback, quenching and sequential super star cluster (SSC) formation in NGC 4945
@article{Bellocchi2022PositiveFQ,
title={Positive feedback, quenching and sequential super star cluster (SSC) formation in NGC 4945},
author={E. Bellocchi and Jes{\'u}s Mart{\'i}n-Pintado and Fernando Rico-Villas and Sergio Mart{\'i}n and I Jim{\'e}nez-Sierra},
journal={Monthly Notices of the Royal Astronomical Society: Letters},
year={2022}
}
We have used ALMA imaging (resolutions 0.1″-0.4″) of ground and vibrationally excited lines of HCN and HC3N toward the nucleus of NGC 4945 to trace the protostellar phase in Super Star Clusters (proto-SSC). Out of the 14 identified SSCs, we find that 8 are in the proto-SSC phase showing vibrational HCN emission with 5 of them also showing vibrational HC3N emission. We estimate proto-SSC ages of 5-9.7× 104 yr. The more evolved ones, with only HCN emission, are close to reach the Zero Age Main…
