|
astro-ph/9611181 🔍 (source)
|
atmospheric abundance of helium |
He / H |
0.00013000000000000002 |
|
|
astro-ph/9705086 🔍 (source)
|
abundances |
He / H |
1.0 ± 0.4 |
|
|
astro-ph/9806385 🔍 (source)
|
ISM |
He / H |
0.103 |
Upper |
|
astro-ph/9810377 🔍 (source)
|
|
He / H |
0.09 |
|
|
astro-ph/9810377 🔍 (source)
|
|
He / H |
0.1 |
|
|
astro-ph/9903410 🔍 (source)
|
|
He / H |
0.64 |
Lower |
|
astro-ph/0104461 🔍 (source)
|
helium enrichment |
He / H |
0.25 |
|
|
astro-ph/0110264 🔍 (source)
|
helium enrichment of ejecta |
He / H |
0.5 |
|
|
astro-ph/0203059 🔍 (source)
|
chemical composition |
He / H |
0.165 ± 0.01 |
|
|
astro-ph/0209170 🔍 (source)
|
|
He / H |
0.08 |
|
|
astro-ph/0210592 🔍 (source)
|
envelope |
He / H |
0.5 |
|
|
astro-ph/0307252 🔍 (source)
|
He content |
He / H |
0.15 |
Lower |
|
astro-ph/0307252 🔍 (source)
|
|
He / H |
0.2 |
Upper |
|
1002.3585 🔍 (source)
|
|
He / H |
0.04 |
|
|
1111.1735 🔍 (source)
|
helium abundance |
He / H |
0.14 ± 0.06 |
|
|
1210.7211 🔍 (source)
|
CSPN masses |
He / H |
0.13 |
Lower |
|
1503.00074 🔍 (source)
|
|
He / H |
1.8 ± 0.1 |
|
|
1506.03235 🔍 (source)
|
isotopic abundance ratios |
He / H |
8.7 ± 0.7 |
|
|
1912.02847 🔍 (source)
|
median helium abundance |
He / H |
0.124 |
|
|
2001.07129 🔍 (source)
|
|
He / H |
0.0 |
|
|
2006.04876 🔍 (source)
|
He-to-H number ratio |
He / H |
0.13 ± 0.05 |
|
|
2007.15715 🔍 (source)
|
|
He / H |
0.0 |
|
|
2007.15715 🔍 (source)
|
|
He / H |
0.0 |
|