1 12.000  H 
 2 10.986  He
 3  1.153  Li
 4  1.433  Be
 5  2.753  B 
 6  8.443  C 
 7  7.913  N 
 8  8.783  O 
 9  4.613  F 
10  8.103  Ne
11  6.353  Na
12  7.593  Mg
13  6.523  Al
14  7.573  Si
15  5.513  P 
16  7.193  S 
17  5.553  Cl
18  6.553  Ar
19  5.173  K 
20  6.383  Ca
21  3.153  Sc
22  4.953  Ti
23  4.053  V 
24  5.693  Cr
25  5.423  Mn
26  7.503  Fe
27  4.973  Co
28  6.283  Ni
29  4.263  Cu
30  4.673  Zn
 -1
%filename: proto_solar_2009_lodders.abund
%created for the CHIANTI atomic database by Peter Young, 12-Aug-2016
%abundance: Lodders, K., Palme, H., & Gail, H.P. 2009, Astronomy, Astrophysics, and Cosmology, B: 
            Solar System, Landolt-Bornstein, New Series VI/4, Spring, Berlin, 560 
            <bibcode="2009LanB...4B...44L">
%comment:
   These are solar system abundances from 4.56 Ga (so-called proto-solar abundances).
   They are derived from present-day solar photospheric abundances in a simple way: He
   is 0.061 higher and all other elements are 0.053 higher (hydrogen is unchanged).

   This reference is quite obscure, but the article can also be downloaded via astro-ph
   (arXiv:0901.1149).
 -1