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White Dwarf Mass Distribution in the SDSS

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arxiv astro-ph/0612277 v2 pith:RYOTYWG2 submitted 2006-12-11 astro-ph

classification astro-ph
keywords massstarsdwarfwhitesdssteffbrighterhotter
verification ladder T0 review T1 audit T2 compute T3 formal
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We determined masses for the 7167 DA and 507 DB white dwarf stars classified as single and non-magnetic in data release four of the Sloan Digital Sky Survey (SDSS). We obtained revised Teff and log g determinations for the most massive stars by fitting the SDSS optical spectra with a synthetic spectra grid derived from model atmospheres extending to log g=10.0. We also calculate radii from evolutionary models and create volume-corrected mass distributions for our DA and DB samples. The mean mass for the DA stars brighter than g=19 and hotter than Teff=12000K is M(DA)= 0.593+/-0.016M(Sun). For the 150 DBs brighter than g=19 and hotter than Teff=16000K, we find M(DB)=0.711+/-0.009 M(Sun). It appears the mean mass for DB white dwarf stars may be significantly larger than that for DAs. We also report the highest mass white dwarf stars ever found, up to 1.33 M(Sun).

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Gravitational Wave Modeling of White-Dwarf--Compact-Object Binaries and Observational Outlook

    astro-ph.HE 2026-07 conditional novelty 6.0 of 10

    WD–CO binaries produce unique GW waveforms with a sharp f_max cutoff; LGWA/DECIGO will detect many end stages, while terrestrial detectors will not mistake them for sub-solar compact objects.

  2. Detecting White Dwarf Binary Mergers with Gravitational Waves

    gr-qc 2025-10 conditional novelty 6.0 of 10

    MAGIS Space and AEDGE could detect white-dwarf-binary mergers in the 10 mHz–1 Hz band, giving early warning of Type Ia supernova explosions at rates of roughly one every four years and a few hundred per year, respectively.

  3. Implications for Pulsar Timing Arrays of Sub-solar Black Hole Detections: From LVK to Einstein Telescope and Cosmic Explorer

    astro-ph.CO 2025-08 conditional novelty 5.0 of 10

    A Bayesian analysis shows that a future sub-solar PBH detection would make the primordial SIGW interpretation of PTA data favored over the SMBH interpretation, but this preference is driven by the detection prior.

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