Fe Kα line emission from the Arches cluster region – evidence for ongoing particle bombardment?

Author： Capelli R.   Warwick R. S.   Porquet D.   Gillessen S.   Predehl P.  

Publisher： Edp Sciences

E-ISSN： 1432-0746|530|issue|A38-A38

ISSN： 0004-6361

Source： Astronomy & Astrophysics, Vol.530, Iss.issue, 2011-05, pp. : A38-A38

Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.

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Abstract

Context. Bright Fe-Kα line emission at 6.4 keV is a unique characteristic of some of the dense molecular complexes present in the Galactic center region. Whether this X-ray fluorescence is due largely to the irradiation of the clouds by X-ray photons or is, at least in part, the result of cosmic-ray particle bombardment, remains an interesting open question.

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