Molecular and Atomic Clouds Associated with the Gamma-Ray Supernova Remnant Puppis A

  title={Molecular and Atomic Clouds Associated with the Gamma-Ray Supernova Remnant Puppis A},
  author={Makoto Aruga and Hidetoshi Sano and Y. Fukui and Estela Marta Reynoso and Gavin Rowell and Kengo Tachihara},
  journal={The Astrophysical Journal},
We have carried out a study of the interstellar medium (ISM) toward the shell-like supernova remnant (SNR) Puppis A using NANTEN CO and ATCA H i data. We synthesized a comprehensive picture of the SNR radiation by combining the ISM data with the gamma-ray and X-ray distributions. The ISM, both atomic and molecular gas, is dense and highly clumpy, and is distributed all around the SNR, but mainly in the northeast. The CO distribution revealed an enhanced line intensity ratio of CO(J = 2–1)/(J… 



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