Two long period radio transients are detached white dwarf-M dwarf binaries with matching periods, massive cool crystallized white dwarfs, low inclinations, and an estimated population of 100-2000 such systems within 2 kpc.
Title resolution pending
6 Pith papers cite this work. Polarity classification is still indexing.
years
2026 6representative citing papers
XRISM spectroscopy of AM Herculis reveals bulk velocity and temperature gradients in the radiative cooling accretion column, with derived shock temperature of 24 keV, velocity of 1116 km/s, and density of 5-6 x 10^15 cm^-3.
XRISM/Resolve high-resolution spectroscopy detects coherent orbital modulation in Fe XXV Kα line centroids from EX Hydrae, yielding K1 = 58.1 km/s and a white dwarf mass of 0.79 solar masses consistent with optical tracers.
Balmer decrements in CV spectra form a diagnostic diagram that separates period-bouncers from pre-bounce systems via fitted logistic regression.
2CXO J0507 is a polar-type magnetic cataclysmic variable featuring a white dwarf with B ≈ 30 MG and an orbital period of 2.34 hours, identified through multiwavelength archival and follow-up data.
New timing and spectral analysis of EP240309a yields conservative upper limits on the white-dwarf magnetospheric radius of a few times 10^10 cm and detects an rms-flux relation in some TESS sectors.
citing papers explorer
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White dwarf + M dwarf Detached Binaries in Long Period Radio Transients: Observed Binary Parameters, Evolution, and Population Constraints
Two long period radio transients are detached white dwarf-M dwarf binaries with matching periods, massive cool crystallized white dwarfs, low inclinations, and an estimated population of 100-2000 such systems within 2 kpc.
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Balmer decrements as a new diagnostic for period-bounce Cataclysmic Variable stars
Balmer decrements in CV spectra form a diagnostic diagram that separates period-bouncers from pre-bounce systems via fitted logistic regression.
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Stochastic Optical Variability and an rms-flux Relation in the Intermediate Polar EP240309a
New timing and spectral analysis of EP240309a yields conservative upper limits on the white-dwarf magnetospheric radius of a few times 10^10 cm and detects an rms-flux relation in some TESS sectors.