Missing metals in DQ stars: a compelling clue to their origin

White dwarf stars frequently experience external pollution by heavy elements, and yet the intrinsically carbon-enriched DQ spectral class members fail to exhibit this phenomenon, representing a decades-old conundrum. This study reports a high-resolution spectroscopic search for Ca ii in classical DQ...

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Veröffentlicht in:	Monthly notices of the Royal Astronomical Society 2024-05, Vol.530 (4), p.4446-4460
Hauptverfasser:	Farihi, J, Dufour, P, Wilson, T G
Format:	Artikel
Sprache:	eng
Online-Zugang:	Volltext
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