XMM-Newton Probes the Solar Past: Coronal Abundances of Solar Analogs at Different Ages

Details XMM-Newton Probes the Solar Past: Coronal Abundances of Solar Analogs at Different Ages XMM-Newton Probes the Solar Past: Coronal Abundances of Solar Analogs at Different Ages

2001-09-17

arxiv.org/abs/astro-ph/0109265v2

Astronomy and Astrophysics

Astrophysics

to appear in 35th ESLAB Symposium "Stellar Coronae in the Chandra and XMM-Newton Era", eds. F. Favata & J.J. Drake (San Franci

Scientific paper

We present an X-ray spectral analysis of four solar analogs with different ages and magnetic activity levels. We find largely different coronal compositions. The most active stars tend to show an ``Inverse First Ionization Potential'' (IFIP) effect, i.e., elements with low FIP are underabundant. Less active stars tend to the opposite effect, with relative overabundances of low-FIP elements. Equivalent Chandra results are presented that support these results.

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