Life-sparking 'wet asteroid' debris found orbiting white dwarf
This is an artist impression obtained from The University of Warwick and The University of Cambridge shows a rocky and water-rich asteroid being torn apart by the strong gravity of the white dwarf star GD 61. Scientists have detected the first ever water-heavy asteroid - of the kind that is thought to have brought water to Earth - outside our solar ... (more)
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“Geologist [I'm Climate Change]”
Since: Mar 07
#1 Oct 14, 2013
some vital statistics on the white dwarf would have been nice to go with it, ie, distance, magnitude, Mv, temperature, B-V, mass (calculable if the others are available). This should also give a decent estimate of the age.
a solar mass WD for example is likely even in its current state to be younger then the sun.
As age is in many cases a pointer to the initial metallicity of the system, the result is likely fairly important, it may be that we are looking @ the WD system equivalent of a sungrazing comet crash.
Will keep watching that space.
Have a nice day: Ag
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