Protostellar Feedback Halts the Growth of the First Stars in the Universe

Details Protostellar Feedback Halts the Growth of the First Stars in the Universe Protostellar Feedback Halts the Growth of the First Stars in the Universe

2011-11-15

arxiv.org/abs/1111.3649v1

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

to appear in Science (published in online Science Express), combined with SOM, additional images and movies are available at

Scientific paper

The first stars fundamentally transformed the early universe by emitting the first light and by producing the first heavy elements. These effects were predetermined by the mass distribution of the first stars, which is thought to have been fixed by a complex interplay of gas accretion and protostellar radiation. We performed radiation-hydrodynamics simulations that followed the growth of a primordial protostar through to the early stages as a star with thermo-nuclear burning. The circumstellar accretion disk was evaporated by ultraviolet radiation from the star when its mass was 43 times that of the Sun. Such massive primordial stars, in contrast to the often postulated extremely massive stars, may help explain the fact that there are no signatures of the pair-instability supernovae in abundance patterns of metal-poor stars in our galaxy.

Affiliated with

Also associated with

No associations

Rating

Protostellar Feedback Halts the Growth of the First Stars in the Universe does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Protostellar Feedback Halts the Growth of the First Stars in the Universe, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Protostellar Feedback Halts the Growth of the First Stars in the Universe will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-67539