The New Chandra View of M82

Astronomy and Astrophysics – Astronomy

Scientific paper

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Scientific paper

M82 is the closest classical staruburst galaxy without a complicating AGN, showing a strong wind that extends more than 10 kpc out into the halo. As such it has been an important laboratory for studying both the sources powering the wind and the physical conditions within the wind itself. We have obtained a deep (497 ks) image of M82 with the Chandra ACIS-S which provides unprecedented detail about the wind structure within the central 5 kpc, and reveals large discontinuous emission regions at 5 and 7 kpc as well as the "cap" at 10.5 kpc (which are only partially correlated with structures seen in the UV and optical). We will present a preliminary hardness map and spatially resolved spectroscopic analysis.

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