Sajjad1994 wrote:
[align=justify][box_out][box_in] Analysis of the motions of stars in the vicinity of the Sun indicates that between one-half and three-quarters of the mass in the solar neighborhood has not been identified with visible stars or gas. Conventionally it has been assumed that this local unseen mass exists in the form of very dim, low-mass stars called brown dwarfs. Although this possibility cannot be excluded, inferences based on the ratio of visible low-mass to high-mass stars suggest that there is actually very little mass in unseen faint stars.
An attractive alternative is that stellar remnants, the dark matter left behind by the collapse of stars at least ten times as massive as the Sun, may account for this unseen mass. Although the formation of massive stars am does not predominate at present in the solar neighborhood it may well have been more important in the past, me amount of interstellar gas and the rate of star formation were greater. Remnants of earlier generations of massive stars would then become an important
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An attractive alternative is that stellar remnants, the dark matter left behind by the collapse of stars at least ten times as massive as the Sun, may account for this unseen mass. Although the formation of massive stars am does not predominate at present in the solar neighborhood it may well have been more important in the past, me amount of interstellar gas and the rate of star formation were greater. Remnants of earlier generations of massive stars would then become an important
...
Statistics : Posted by GMATCenturion • on 01 Mar 2024, 08:00 • Replies 10 • Views 445
