Cosmic ray- and thermal-pressure driven winds: Does the Milky Way host a KPC-scale outflow?

J. Everett, E. Zweibel, B. Benjamin, D. McCammon, Q. Schiller, L. Rocks, J. S. Gallagher

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Scopus citations

Abstract

We show that the X-ray emission observed towards the center of our Milky Way Galaxy is consistent with a strong (2.1 Mȯ/yr) outflow powered by both cosmic-ray pressure and thermal-gas pressure. In addition, the inferred launch parameters of such an outflow seem consistent with conditions inferred in the central Milky Way and other galaxies (although it is not clear if a significant vertical magnetic field exists in the center of the Galaxy). We also show that in galaxies with cosmic-ray pressure, gas pressure, and a vertical magnetic field component, cosmic-ray pressure can yield outflows over a wider range of conditions.

Original languageEnglish (US)
Title of host publicationThe Role of the Disk-Halo Interaction in Galaxy Evolution
Subtitle of host publicationOutflows vs. Infall?
Pages73-76
Number of pages4
DOIs
StatePublished - Dec 1 2012
EventThe Role of the Disk-Halo Interaction in Galaxy Evolution: Outflows vs. Infall? - Espinho, Portugal
Duration: Aug 18 2008Aug 22 2008

Publication series

NameEAS Publications Series
Volume56
ISSN (Print)1633-4760
ISSN (Electronic)1638-1963

Other

OtherThe Role of the Disk-Halo Interaction in Galaxy Evolution: Outflows vs. Infall?
CountryPortugal
CityEspinho
Period8/18/088/22/08

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ASJC Scopus subject areas

  • Engineering(all)

Cite this

Everett, J., Zweibel, E., Benjamin, B., McCammon, D., Schiller, Q., Rocks, L., & Gallagher, J. S. (2012). Cosmic ray- and thermal-pressure driven winds: Does the Milky Way host a KPC-scale outflow? In The Role of the Disk-Halo Interaction in Galaxy Evolution: Outflows vs. Infall? (pp. 73-76). (EAS Publications Series; Vol. 56). https://doi.org/10.1051/eas/1256008