"Astrophysical Journal Letters" . . "[4620210F878D]" . "We report the identification of the double-degenerate system NLTT 16249 that comprises a normal, hydrogen-rich (DA) white dwarf and a peculiar, carbon-polluted white dwarf (DQ) showing photospheric traces of nitrogen. We disentangled the observed spectra and constrained the properties of both stellar components." . "The Core Composition of a White Dwarf in a Close Double-degenerate System"@en . . "5"^^ . "Vennes, Stephane" . . "RIV/67985815:_____/12:00388497!RIV13-GA0-67985815" . . "128799" . . "2"^^ . "2"^^ . . . "close binaries; white dwarfs; NLTT 16249"@en . "Kawka, Adela" . "We report the identification of the double-degenerate system NLTT 16249 that comprises a normal, hydrogen-rich (DA) white dwarf and a peculiar, carbon-polluted white dwarf (DQ) showing photospheric traces of nitrogen. We disentangled the observed spectra and constrained the properties of both stellar components."@en . "000300228100012" . "RIV/67985815:_____/12:00388497" . "US - Spojen\u00E9 st\u00E1ty americk\u00E9" . "Vennes, Stephane" . . . . "2041-8205" . . . . . "The Core Composition of a White Dwarf in a Close Double-degenerate System"@en . "The Core Composition of a White Dwarf in a Close Double-degenerate System" . . "P(GAP209/10/0967), P(IAA300030908), P(IAA301630901), Z(AV0Z10030501)" . . . "745" . "1" . . "10.1088/2041-8205/745/1/L12" . "The Core Composition of a White Dwarf in a Close Double-degenerate System" . . .