Brown Dwarfs- Can we Guestimate how many there are ?

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Offline neilep

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This is an artists impression of a Brown Dwarf.


As you know , they are sometimes referred to as failed stars....just not having enough Mass to start Hydrogen Fusion....this naturally makes them very difficult to see.

But, is there a current guestimate as to how many there are ? (in the Milky way)

Depending on who you ask I hear different guesstimate/statements that in our own galaxy the number of stars range from 200-400 Billion !...does this figure include Brown Dwarfs ?..if not.....can you postulate as to how many there are ?

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Offline Soul Surfer

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Brown Dwarfs- Can we Guestimate how many there are ?
« Reply #1 on: 14/01/2008 18:50:10 »
Small faint stars and brown dwarfs are difficult to detect and observe but the statistics of star formation suggest that the smaller the star the more frequently they are formed so there could well be a lot more brown dwarfs in the galaxy than stars but as they are relatively low mass items they may not reperesent the stellar size group with the largest mass of stars in them.
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Offline rosalind dna

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Brown Dwarfs- Can we Guestimate how many there are ?
« Reply #2 on: 14/01/2008 22:13:20 »
Rosalind Franklin was my first cousin and one my life's main regrets is that I never met this brilliant and beautiful lady.
She discovered the Single DNA Helix in 1953, then it was taken by Wilkins without her knowledge or agreeement.