Discovery of 1.1 keV iron line emission in the spectrum of the M87/Virgo cluster X-ray source

Details Discovery of 1.1 keV iron line emission in the spectrum of the M87/Virgo cluster X-ray source Discovery of 1.1 keV iron line emission in the spectrum of the M87/Virgo cluster X-ray source

Jan 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979apj...227l..67l&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 227, Jan. 15, 1979, p. L67-L71. Research supported by the Miller Ins

Astronomy and Astrophysics

Astrophysics

21

Elliptical Galaxies, Heao 1, Iron, Line Spectra, Virgo Galactic Cluster, X Ray Sources, X Ray Spectra, Emission Spectra, Galactic Clusters

Scientific paper

Data are presented from a HEAO 1 scanning observation of the Virgo cluster in December 1977. The L-shell iron lines at 1.1 keV have been observed in the spectrum of this source. The iron abundance derived is consistent with previous determinations from the 6.7-keV line. The HEAO data also indicate that the source is extended with FWHM of about 1 deg of arc.

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