Recent content by Jussi Lundahl

Yes, I understand. I just copy/paste the values from excel. :) What do you mean by measured parameters? I think I figured out this problem... $$Lets~calculate~x_e':$$ \begin{align*} && k= - 2\tilde{\nu}_e'x_e' &= -2,069761731\\ \\ \iff && x_e' &= -\frac{k}{2\tilde{\nu}_e'}\\ \\ \iff && x_e' &=...

So, you mean like this: $$\tilde{\nu}_e' - 2\tilde{\nu}_e'x_e' = 0$$ $$ x_e' = \frac{\tilde{\nu}_e'}{2\tilde{\nu}_e'}$$ and the uncertainty is $$\delta x_e' = \sqrt{ \left( \frac{\partial \frac{ \tilde{\nu}_e' }{2 \tilde{\nu}_e' }}{\partial \tilde{\nu}_e' } \times \delta \tilde{\nu}_e'...

I'm doing a lab report from electronic spectrum of iodine. I did Birge-Sponer plot from my data. Excel gave it to me a slope y = -2,0698x+133,34. From regression analysis I get uncertainties for slope and intercept. Slope: ##-2,069761731 \pm 0,075075941## Intercept: ##133,3385857 \pm...

Thank you! You saved my day :)

I think those are called flux density in English. $$F=\frac{L}{4 \pi r^2}$$, where the L is luminosity and r is radius. $$ L= \omega r^2$$ where $$\omega$$ is solid angle?? and r is radius.

Homework Statement Stars are observed through a triple window. Each surface reflects away 15% of the incident light. a) What is the magnitude of Sirius (m = -1.5) seen through the window? And I know that the solution is -0,97. Homework Equations m1-m2=-2,5*log10*(F1/F2) The Attempt at a...