How The Early Universe Got Dusty Remains A Mystery

"GD" == George Dishman writes:

HOW THE EARLY UNIVERSE GOT DUSTY REMAINS A MYSTERY
GD ...
"The first process takes several billion years," Krause
noted. "Supernovae explosions, by contrast, produce dust in much
less time, only about 10 million years."

GD Does anyone know if the products expected from Pop III SNe have
GD been predicted?

There is a recent review by Bromm & Larson (2004,
Ann. Rev. Astron. Astrophys.). They discuss metal production by
supernovae from Pop. III stars. There are various caveats, of course,
but the current predictions are that Pop. III stars are likely to be
fairly massive. Those that disperse elements in their supernovae (as
opposed to collapsing straight to a black hole) may yield as much as
half of their mass in metals, much of this in iron.

There's also been a lot of work on how the blast wave from a
supernova would modify its surroundings, both by sweeping up gas and
dispersing metals, which might make it easier for subsequent
generations of stars to form.

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"Joseph Lazio" wrote in message
...
"GD" == George Dishman writes:

HOW THE EARLY UNIVERSE GOT DUSTY REMAINS A MYSTERY
GD ...
"The first process takes several billion years," Krause
noted. "Supernovae explosions, by contrast, produce dust in much
less time, only about 10 million years."

GD Does anyone know if the products expected from Pop III SNe have
GD been predicted?

There is a recent review by Bromm & Larson (2004,
Ann. Rev. Astron. Astrophys.).

If anyone else is interested, it's he

http://www.astro.yale.edu/larson/papers/ARAA04.pdf

Thanks again Joseph, lots for me to learn there ;-)

Happy New Year
George