The nearby white dwarf/red dwarf pair 40 Eri BC

DOI

A new relative orbit solution with new dynamical masses is determined for the nearby white dwarf-red dwarf pair 40 Eri BC. The period is 230.29+/-0.68 years. It is predicted to close slowly over the next half-century, getting as close as 1.32" in early 2066. We determine masses of 0.573+/-0.018 M_{sun} for the white dwarf and 0.2036+/-0.0064 M{sun}_ for the red dwarf companion. The inconsistency of the masses determined by gravitational redshift and dynamical techniques, due to a premature orbit calculation, no longer exists.

Identifier
DOI http://doi.org/10.26093/cds/vizier.51540200
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/AJ/154/200
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/154/200
Related Identifier http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/154/200
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/AJ/154/200
Provenance
Creator Mason B.D.; Hartkopf W.I.; Miles K.N.
Publisher CDS
Publication Year 2018
Rights https://cds.unistra.fr/vizier-org/licences_vizier.html
OpenAccess true
Contact CDS support team <cds-question(at)unistra.fr>
Representation
Resource Type Dataset; AstroObjects
Discipline Astrophysical Processes; Astrophysics and Astronomy; Natural Sciences; Physics; Stellar Astronomy