The coolest white- dwarf: Surveys have been carried out to identify isolated white- dwarfs throughout the galaxy and its globular clusters. They have been found to span a range of temperatures, with a sharp lower limit of about 3000 K (i.e. many have been found at all temperatures from 10s of thousands of Kelvin down to 3000K, but none cooler). What does this observation reveal about the age of our galaxy?

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The Answer of The coolest white- dwarf: Surveys have been carried out to identify isolated white- dwarfs throughout the galaxy and its globular clusters. They have been found to span a range of temperatures, with a sharp lower limit of about 3000 K (i.e. many have been found at all temperatures from 10s of thousands of Kelvin down to 3000K, but none cooler). What does this observation reveal about the age of our galaxy?

The Coolest White- Dwarf: Surveys Have Been Carried Out to Identify