Spatially resolved Spitzer-IRS spectral maps of the superwind in M82

P Beirao,Lee Armus,M D Lehnert,P Guillard,Timothy M Heckman,Bruce T Draine,David J Hollenbach,F Walter, Kapil Sheth,J D Smith,Patrick Lynn Shopbell,F Boulanger,Jason A Surace,Charles G Hoopes,C W Engelbracht

Monthly Notices of the Royal Astronomical Society（2015）

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摘要

We have mapped the superwind/halo region of the nearby starburst galaxy M82 in the mid-infrared with Spitzer − IRS. The spectral regions covered include the H2 S(1)–S(3), [Ne II], [Ne III] emission lines and polycyclic aromatic hydrocarbon (PAH) features. We estimate the total warm H2 mass and the kinetic energy of the outflowing warm molecular gas to be between Mwarm ∼ 5 and 17 × 106 M⊙ and EK ∼ ...

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galaxies: individual: M82,galaxies: starburst,infrared: galaxies

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