Question
A quasar is observed at a redshift of z=1, which corresponds to a comoving radial distance of 3 Gpc. Its observed bolometric flux is 10^{-12} erg/cm^2/s. An interacting companion galaxy is seen 4 arcsec apart in projection.
What is the bolometric luminosity of the quasar, in solar luminosity units?
What is the projected linear separation from the companion galaxy, in kpc?
What is the bolometric luminosity of the quasar, in solar luminosity units?
What is the projected linear separation from the companion galaxy, in kpc?
Answers
abc
1. 10^12
2. 30
2. 30
Cy
Please show the work to get the answers, especially for #2.