This means that the enclosed mass continues to increase even though the amount of visible,
luminous matter falls off at large distances from the center.
Not exact matches
The density of
luminous matter is so small that it
falls within the rounding errors of dark
matter and dark energy, which is why the numbers add up to more than 100 percent.
Half the
matter of the star
falls on to the black hole and feeds it, and that generates a
luminous flare of a billion or 10 billion solar luminosities.»