Quote:
Originally Posted by sheeny
there is a strong double line bluewards of Hb.  |
Not that I know what I'm doing
but I've just had a browse through the finding list on NIST (
http://physics.nist.gov/PhysRefData/...dinglist11.htm) and my guess at the origin of these two lines are Nd I, and Al II.
I just browsed the list for about 10Å each side of the peak wavelength and picked the elements with the strongest lines. Al II has two strong lines at 4663 and 4666, and Neodymium has two strong lines at 4634 and 4631.
The Al II seems possible, but the Nd? Seems a pretty heavy element (atomic number 60)
so it doesn't seem so likely to me. But having a better guess requires a bit more knowledge than I have ATM.
Al.