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PAH emission features in star-forming regions and late type stars

Kumar, Brijesh; Rastogi, Shantanu; Anand, Rahul Kumar

Mid-infrared emission spectra, obtained from ISO archive, of thirteen astrophysical objects as well as computed spectra of 27 polycyclic aromatic hydrocarbon (PAH) molecules are studied. All the objects show strong aromatic infrared band (AIB) features with variations that correlate with object type. Based on AIB peak positions, the features for I…