# Astronomy

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?

1. 👍 0
2. 👎 0
3. 👁 367
1. 1. 10^12
2. 30

1. 👍 0
2. 👎 0
posted by abc

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