Primordial Black Holes Are a Let Down When It Comes to Explaining Dark Matter, Study Shows

[Judi Lynn]

Now what?

MIKE MCRAE 3 OCT 2018

After studying hundreds of recently discovered exploding stars, physicists have concluded it's unlikely there are sufficient numbers of primordial black holes out there to account for the dark matter phenomenon.

This doesn't mean the category of material referred to as massive compact halo objects (MACHOs) can't contribute to the unseen 84 percent of the Universe's mass. But it does mean we need to continue to look elsewhere for a full explanation.

University of California Berkeley researchers conducted a statistical analysis on the brightest type Ia supernovae discovered over the past four years, looking for any signs of distortion.

Supernovae have traditionally been used as galactic landmarks thanks to the assumption that we can work out their absolute luminosity from a few basic characteristics, providing a clear idea of their distance.

More:
https://www.sciencealert.com/primordial-black-hole-macho-dark-matter-explanation-unlikely-supernovae-study?perpetual=yes&limitstart=1