ZTF J0007+4804 is the first known hot subdwarf-white dwarf binary that exhibits SU UMa-type dwarf nova outbursts with a 108.72-minute orbital period.
L., Massa, D., Gordon, K
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2026 4representative citing papers
Pa 13 contains a detached double-degenerate binary of two hot pre-white dwarfs with dynamical masses 0.41 and 0.39 solar masses, offering the strongest evidence yet for planetary nebulae around post-RGB stars via either double-core evolution or CE-induced rejuvenation.
Three new candidate ancient planetary nebulae, each several arcminutes across with extremely low [O iii] surface brightness around 30 mag arcsec^{-2}, were discovered using amateur telescopes, with candidate central stars yielding age estimates of 50-100 thousand years.
Wide WD+MS binaries from Gaia show large intrinsic scatter in [Fe/H] at all ages for the Galactic disk AMR, agreeing with prior studies and indicating complex chemical evolution.
citing papers explorer
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Discovery of the first outbursting hot subdwarf binary: ZTF J0007+4804
ZTF J0007+4804 is the first known hot subdwarf-white dwarf binary that exhibits SU UMa-type dwarf nova outbursts with a 108.72-minute orbital period.
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Two hot pre-white dwarfs inside the red-giant-branch planetary nebula Pa 13 -- Double core evolution or common envelope-induced rejuvenation?
Pa 13 contains a detached double-degenerate binary of two hot pre-white dwarfs with dynamical masses 0.41 and 0.39 solar masses, offering the strongest evidence yet for planetary nebulae around post-RGB stars via either double-core evolution or CE-induced rejuvenation.
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Ancient 'ghost' planetary nebulae discovered with amateur telescopes
Three new candidate ancient planetary nebulae, each several arcminutes across with extremely low [O iii] surface brightness around 30 mag arcsec^{-2}, were discovered using amateur telescopes, with candidate central stars yielding age estimates of 50-100 thousand years.
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Revisiting the Galactic age-metallicity relation from wide white dwarf-main-sequence binaries
Wide WD+MS binaries from Gaia show large intrinsic scatter in [Fe/H] at all ages for the Galactic disk AMR, agreeing with prior studies and indicating complex chemical evolution.