Spitzer's view on aromatic and aliphatic hydrocarbon emission in Herbig Ae stars

  title={Spitzer's view on aromatic and aliphatic hydrocarbon emission in Herbig Ae stars},
  author={Bram Acke and Jeroen Bouwman and A. Juhash and Th. Henning and M. van den Ancker and Gwendolyn Meeus and A. Tielens and L. B. F. M. Waters},
  journal={The Astrophysical Journal},
The chemistry of astronomical hydrocarbons, responsible for the well-known infrared emission features detected in a wide variety of targets, remains enigmatic. Here we focus on the group of young intermediate-mass Herbig Ae stars. We have analyzed the aliphatic and polycyclic aromatic hydrocarbon (PAH) emission features in the infrared spectra of a sample of 53 Herbig Ae stars, obtained with the Infrared Spectrograph aboard the Spitzer Space Telescope. We confirm that the PAH-to-stellar… 
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