Indium abundance trends among sun-like stars

Details Indium abundance trends among sun-like stars Indium abundance trends among sun-like stars

Sep 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006mnras.371..781g&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 371, Issue 2, pp. 781-785.

Astronomy and Astrophysics

Astronomy

4

Stars: Abundances

Scientific paper

Results are presented from the first abundance analysis of indium (In) among sun-like stars. The abundance analysis is based on the weak InI line at 4511 Å. Spectrum synthesis of 42 stars cooler than the sun reveals a trend between [In/Fe] and [Fe/H] with a slope of -0.76 +/- 0.06, when corrected for a trend with Teff. This is the same sense as the correlation found among sun-like stars for the r-process element, Eu, but In exhibits a much steeper slope. The sample includes five stars hosting giant planets, but they exhibit the same trend as the other stars in the sample. Additional research on all astrophysical processes affecting the In abundance in stars is encouraged.

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