Charge exchange in massive star-forming regions

T. Montmerle, L. K. Townsley

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

As a result of feedback from massive stars, via their intense winds and/or supernova explosions, massive star-forming regions are entirely filled with hot, X-ray emitting plasmas, which escape into the ambient ISM. As shown recently by Townsley et al. for several "extreme" cases (Carina, M17, NGC 3576, NGC 3603, 30 Dor), by way of large Chandra ACIS mosaics, extra, non-thermal emission lines are present on top of the standard lines emitted by hot plasmas. Some of them are very close to lines characteristic of charge-exchange reactions between the hot plasma and the cold surrounding material, suggesting that this mechanism operates on large spatial scales (several 10 pc) in star-forming regions in general. The connection with starburst galaxies is briefly mentioned, and it is pointed out that supernovae interacting with molecular clouds may also provide a good environment to look for charge exchange processes.

Original languageEnglish (US)
Pages (from-to)355-360
Number of pages6
JournalAstronomische Nachrichten
Volume333
Issue number4
DOIs
StatePublished - Apr 1 2012

Fingerprint

high temperature plasmas
massive stars
charge exchange
supernovae
plasma
nonthermal radiation
starburst galaxies
molecular clouds
escape
explosions
stars
explosion
x rays

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Montmerle, T. ; Townsley, L. K. / Charge exchange in massive star-forming regions. In: Astronomische Nachrichten. 2012 ; Vol. 333, No. 4. pp. 355-360.
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Charge exchange in massive star-forming regions. / Montmerle, T.; Townsley, L. K.

In: Astronomische Nachrichten, Vol. 333, No. 4, 01.04.2012, p. 355-360.

Research output: Contribution to journalArticle

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