Sentences with phrase «abundance of heavy metals»

It's believed that the abundance of heavy metals, such as iron, is what makes it so powerful against the disease.

Not exact matches

The star may be about only 63 percent as enriched as Sol with elements heavier than hydrogen («metallicity») based on its abundance of iron (D. Gigas, 1986, but more recent findings on Vega's mild underabundance of metals can be found in Ilijic et al, 1998).

Based on the abundance of iron to hydrogen, Star A appears to be 35 to 48 percent as enriched as Sol in «metals» — elements heavier than hydrogen and helium (Howard et al, 2014; Berger et al, 2006, Table 5).

It appears to be 54 to 59 percent as enriched as Sol in elements heavier than hydrogen («metals») based on its abundance of iron (Howard et al, 2010, for HD 97658 on Table 1, page 3; Raghavan et al, 2010; and Valenti and Fischer, 2005).

It appears to be more enriched than Sol in elements heavier than hydrogen («metals») with between 1.05 to 2.29 times Sol's abundance of iron (Cayrel de Strobel et al, 1991, pages 294 - 295).

It may be at least as enriched as Sol in elements heavier than hydrogen («metals»), as it has between 54 and 214 percent of Sol's abundance of iron (Cayrel de Strobel et al, 1991, page 9).

The star appears to be relatively enriched in elements heavier than hydrogen («metals») because it has 105 percent of Sol's abundance of iron (Cayrel de Strobel et al, 1991, page 282).

Sirius A is rich in elements heavier than hydrogen («metals rich»), as it has about one to 7.4 times the iron abundance of Sol (Cayrel de Strobel et al, 1991, pages 285 - 286).

It appears to be «super metal - rich,» with around 1.4 to 2.0 times as enriched as Sol with elements heavier than hydrogen («metallicity») based on its abundance of iron (NASA Stars and Exoplanet Database; Feltzing and Gonzales, 2001; and Cayrel de Strobel et al, 2001).

Sensitive to estimate's of the star's abundance of «metals» (elements heavier than hydrogen), Star A appears to have 1.6 to 1.7 times Sol's mass (van Belle et al, 2007; Guenther et al, 2005; D.B. Guenther, 2004; and Carrier et al, 2004), about 2.7 times Sol's diameter (van Belle et al, 2007; Fracassini et al, 1994; and Johnson and Wright, 1983, page 679), and around 8.9 times Sol's bolometric luminosity (van Belle et al, 2007; and Thévenin et al, 2005).

The overall heavy - metal abundance of the galaxy does change over billions of years as stars process lighter elements into heavier ones and recycle them back into star forming material at the end of their lives.

It appears to be less enriched than Sol in elements heavier than hydrogen («metals») with about 72 - 89 percent of Sol's abundance of iron (Cayrel de Strobel et al, 1991, page 12).