Pregalactic stars and the origin of the microwave background

Details Pregalactic stars and the origin of the microwave background Pregalactic stars and the origin of the microwave background

May 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981mnras.195..669c&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 195, May 1981, p. 669-684.

Astronomy and Astrophysics

Astronomy

25

Background Radiation, Black Holes (Astronomy), Galactic Evolution, Microwave Spectra, Stellar Radiation, Mass Spectra, Nuclear Fusion, Protostars, Red Shift, Stellar Evolution, Stellar Spectra, Thermalization (Energy Absorption)

Scientific paper

Recently reported distortions in the spectrum of the microwave background have been interpreted as indicating that as much as 25 per cent of its energy content may be radiation generated by pregalactic stars and thermalized by dust grains. The fact that this fraction is so large motivates one to explore the possibility that the remaining 75 per cent may also have been generated by pregalactic stars, though at an earlier epoch when thermalization could have been achieved through free-free processes rather than by grains. This suggestion is not implausible since one would expect pregalactic stars to span a range of masses and the more massive ones would complete their nuclear-burning phase at an earlier epoch. However, energetic considerations require that the 75 per cent component be generated not by the massive stars themselves but by their black hole remnants. Before the black holes form, the Universe would be cold or tepid and this circumvents many problems associated with galaxy formation.

Affiliated with

Also associated with

No associations

Rating

Pregalactic stars and the origin of the microwave background 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 Pregalactic stars and the origin of the microwave background, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pregalactic stars and the origin of the microwave background will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1442372