1
$\begingroup$

I have a radio catalogue with flux density values. (Jy/bm) I'm confused converting this value to flux. Because I want to calculate luminosity, I need flux values. The unit made me confused. Since I know the distance values converting flux to luminosity will be easy. I only need to convert flux density to flux

$\endgroup$
1

1 Answer 1

2
$\begingroup$

The unit of Jansky (Jy) is a flux density, measured in 10^-26 W/m^2/Hz , which is a frequency specific quantity. In order to get the flux, you have to integrate the flux density over frequency bandwidth of the instrument.

See this link for more details and related quantities https://www.mrao.cam.ac.uk/~kjbg1/lectures/lect1_1.pdf

$\endgroup$
1
  • $\begingroup$ I got my data from NRAO VLASS which is at 1.4ghz band. So how i can apply to this integral since there are only 1 frequency? $\endgroup$
    – Ege Tunç
    May 29, 2023 at 15:37

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .