Very Extended X-ray and $H-\alpha$ Emission in M82: Implications for the Superwind Phenomenon

• Published in: The Astrophysical Journal
• Main Authors: Lehnert, M D, Heckman, T M, Weaver, K A
• Language: English
• Published: 1999
• Subjects: Astrophysics and Astronomy; Alpha Ridge; alpha ridge
• Online Access: https://doi.org/10.1086/307762; http://cds.cern.ch/record/384970

We discuss the properties and implications of a 3.7x0.9 kpc region of spatially-coincident X-ray and H-alpha emission about 11.6 kpc to the north of the galaxy M82 previously discussed by Devine and Bally (1999). The PSPC X-ray spectrum is fit by thermal plasma (kT=0.80+-0.17 keV) absorbed by only t...