Spectral analysis of ultra-cool white dwarfs polluted by planetary debris

1. 1. 1970 (accepted)

Stars mentioned

	WD J2147-4035		0.69 M☉	91.1 ly
	WD J1922+0233		0.57 M☉	129 ly

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Spectral analysis of ultra-cool white dwarfs polluted by planetary debris external link

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