Finally, I finished the revision of my first paper draft. Several changes were involved, including adding a table for interpreting the correlation between the infrared colors with the different line ratios. However, I think more careful data reduction is needed, as some line itself could already have a strong dependence. So the order should be 1. Single lines first; 2. The ratios. Perhaps adding another table just as Table 1 is a good idea, also putting the lines instead of line ratios in the first column. But, the line strength could result from the scaling effect. In fact, Table 1 is connected to Figure 2, which displays the dependence of infrared normalized line luminosities on the IR colors. That means the correlation coefficient in Figure 2 could predict part of the results in the table, though it’s more clear in Table 1. Probably I should mention that in the paper.

Nevertheless, the variation of the slope with different transitions is also an interesting point which I should include in the paper later. The difference may infer the intrinsic variable excitation mechanism.

But now I really have no time until I finish the entrance exam for PMO. I have to heavily prepare 3 subjects in the next 4 days… I have to say it’s real ….by chance, though I have some basic knowledge which I am not sure that I can recall whenever I need it. Anyway, let us cross our fingers…