Question

ty Lifetimes. Zero-age main sequence stars much less than 0.5Mo are the alternate form of "dark matter". Assume a brown dwarf's luminosity derives from gravitational contraction alone. Its mass is 0.05 Mo, and its luminosity is 3 x 10-3Lo. Such stars maintain a tight correlation between radus and mass given by R 9 x 10 (M/Mo)-1em. If we assume that its luminosity has been constart a) calculate a radiation temperature and wavelength to demonstrate these stellar objects as "dark". (b) how long can a star of this type radiate before the contraction is halted by electron degeneracy Brom Dwarf Luminosity Lifetimes. Zero-age main sequence stars much less than (even when the star had a much larger radius), pressure?

Answer 1

ven o of on ocan 0.o5 mo LuminS umeaosety constant even wohes the stor had a much langer even when the st ar haol To fund we have, osu c m cm 3χ 10 2 b (3 x 10 2. 0x1013 k 13 M 3 wavel ength の constant の

Cb Tome Nowy Mass of r,to wn olvoa O.DS Me mass of one soton 1.6구 X ) C)-24 1g 5. x LO N ow, the totoet hermal enerogy à -93 1-38 tO 23 103 Now, the teme Wil saodtatoE 3 5 3.15 x 101