Dusty galaxies challenge standard dust evolution theories
Over the past decade or so, several scientific papers have referred to the origins problem for evolutionists of too much cosmic dust. Some extracted quotes:
“The origin of dust in galaxies is still a mystery.”
“[I]t is unclear how and where dust grains condense and grow, and how they avoid destruction in the harsh environments of star-forming galaxies.”
“The large amounts of dust detected in sub-millimeter galaxies and quasars at high redshift pose a challenge to galaxy formation models and theories of cosmic dust formation.”
“This increase in the dust content of massive galaxies at high redshift is difficult to explain using standard dust evolution models and requires a rapid gas consumption time-scale together with either a more top-heavy initial mass function (IMF), efficient mantle growth, less dust destruction or combinations of all three.”
- Gall, C. and 8 others, Rapid formation of large dust grains in the luminous supernova 2010jl, Nature 511:326–329, 2014.
- Gall, C. and 2 others Production of dust by massive stars at high redshift, Astron. Astrophys. Rev. 19:43, 2011.
- Dunne, L. and 39 others, Herschel-ATLAS: rapid evolution of dust in galaxies over the last 5 billion years, Mon. Not. R. Astron. Soc. 417:1510–1533, 2011.
Readers’ comments
Comments are automatically closed 14 days after publication.