The discussion revolves around the characterization of PSR J1719-1438 as a planet-sized diamond, exploring the evidence and conditions necessary for carbon to form into diamond. Participants examine the scientific basis for this classification, including the role of pressure and temperature, and the implications of carbon's configuration.
Participants express varying levels of agreement on the conditions required for carbon to form into diamond and the evidence for the classification of PSR J1719-1438. Multiple competing views remain regarding the specifics of the carbon configuration and the implications of the findings.
Some claims about the density of diamond and the conditions for its formation are presented without consensus on the exact parameters or evidence required to support the classification of PSR J1719-1438.
CosmicEye said:I think that all you really need and the right mixture of elements (unless its pure C)
Thats how they make man made jewelry
ryan_m_b said:What evidence do they have that this is a diamond planet? They mention it is made of carbon but not how they know the configuration the carbon is in.
[/Color]Wikipedia said:Scientific evidence indicates that white dwarf stars have a core of crystallized carbon and oxygen nuclei. The largest of these found in the universe so far, BPM 37093, is located 50 light-years away in the constellation Centaurus. A news release from the Harvard-Smithsonian Center for Astrophysics described the 4,000 km wide stellar core as a diamond.
Orion1 said:The companion planet is probably a remnant core of a ultra-low mass carbon-oxygen white dwarf. It has a minimum density of 23 g/cm^3 and a pure diamond has a density of 3.5–3.53 g/cm^3.
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Reference:
http://en.wikipedia.org/wiki/PSR_J1719-1438"
http://en.wikipedia.org/wiki/Diamond"
http://en.wikipedia.org/wiki/BPM_37093"
Drakkith said:What exactly do you mean? Diamond, in any form, requires extreme pressure combine with lots of heat to make it form into that particular configuration. The impurities of the diamond can give it different colors and such.
CosmicEye said:Right, that's what they do. They put a certain amount of carbon, with the right amount of impurities for color into a little chamber thing. If you can imagine all 4 sides of a pyramid with a small hole carved out at the center closing in on the soon to be made jewel at the center, it closes and compresses it to tons of psi for a few hours until the jewel forms.
I don't remember the exact specs but it was on 'how its made' a while ago. I don't know if they make actual diamonds or if they can only make less dense jewels and birthstones. It was pretty interesting. If you go to a jeweler you can tell the real Earth made ones from the lab made ones. Man made ones are much clearer vs naturally made which are much more opaque.