Solar and interstellar abundances of some
atoms and/or molecules (from Tab 1.3-1.6 of Duley & Williams, 1984inch.book.....D)
Chemical abundances in several typical environments:
(figures: left -- abundances in zeta Oph; middle -- in IRC +10216; right -- in TMC-1)
Abundances of more known species in different sources. (up to 1984)
The abundances are relative to H nuclei.
Depletion is defined as Dx = log[N(X)/N(H)] -
log[N(X)/N(H)]_sun. (same as above Tab 3)
Species |
Abundance in zeta Oph |
Solar abundances |
Depletion: -Dx |
Li,Li+ |
5.2x10^-11 |
1.55x10^-9 |
1.47 |
C,C+ |
1.6x10^-4 |
3.72x10^-4 |
0.37 |
N |
7.2x10^-5 |
1.15x10^-4 |
0.2 |
O |
5.0x10^-4 |
6.76x10^-4 |
0.1 |
Na,Na+ |
2.1x10^-7 |
1.74x10^-6 |
0.9 |
Mg,Mg+ |
1.0x10^-6 |
3.50x10^-5 |
1.5 |
Al,Al+ |
1.3x10^-9 |
2.5x10^-6 |
3.3 |
Si,Si+ |
8.2x10^-7 |
3.5x10^-5 |
1.6 |
P+ |
2.1x10^-8 |
2.7x10^-7 |
1.1 |
S,S+ |
8.2x10^-6 |
1.6x10^-5 |
0.3 |
Cl,Cl+ |
9.9x10^-8 |
4.4x10^-7 |
0.65 |
Ar |
8.4x10^-7 |
4.4x10^-6 |
0.72 |
K,K+ |
1.0x10^-8 |
1.1x10^-7 |
1.0 |
Ca,Ca+,Ca2+ |
4.5x10^-10 |
2.0x10^-6 |
3.65 |
Ti,Ti+ |
2.2x10^-10 |
5.5x10^-8 |
2.4 |
Mn,Mn+ |
1.5x10^-8 |
2.6x10^-7 |
1.24 |
Fe,Fe+ |
2.7x10^-7 |
2.5x10^-5 |
1.97 |
Ni,Ni+ |
9.5x10^-9 |
1.9x10^-6 |
2.3 |
Cu,Cu+ |
6.3x10^-10 |
2.8x10^-8 |
1.65 |
Zn+ |
1.4x10^-8 |
2.5x10^-8 |
0.27 |
H2 |
0.32 |
|
|
HD |
1.1x10^-7 |
|
|
12CO |
9.1x10^-7 |
|
|
13CO |
<1.8x10^-8 |
|
|
CH |
2.4x10^-8 |
|
|
CH+ |
6.6x10^-9 |
|
|
CN |
6.2x10^-9 |
|
|
OH |
3.6x10^-8 |
|
|
C2 |
2.3x10^-9 |
|
|
|