First Look XMM-Newton EPIC Observations of the Prototypical Starburst Galaxy M82
Abstract
We present initial XMM-Newton EPIC observations of the prototypical starburst galaxy M82. The superwind is seen to extend continuously from the starburst region to the X-ray emission associated with the Halpha 'cap'. We also find evidence for a ridge feature, probably associated with the superwind interacting with an HI streamer. Narrow band images, centred on individual X-ray lines, show differences in morphology, with higher energy lines being less spatially extended, and a systematic shift with energy in the region of peak emission. Spectral fits with two thermal and one power-law component provide a good fit to the spectra of the nuclear and inner wind regions, indicating a multiphase superwind. We discuss the implications of these observations on our understanding of superwinds.
Keywords
Cite
@article{arxiv.astro-ph/0306334,
title = {First Look XMM-Newton EPIC Observations of the Prototypical Starburst Galaxy M82},
author = {Ian R. Stevens and Andrew M. Read and Jimena Bravo-Guerrero},
journal= {arXiv preprint arXiv:astro-ph/0306334},
year = {2009}
}
Comments
6 pages, accepted as a letter in MNRAS