What question did this study set out to answer?

The research aims to characterize the stellar multiplicity within 10 parsecs, focusing on the distribution of angular separations, masses, and orbital periods of the systems.

May 8, 2026Monthly Notices of the Royal Astronomical SocietyOpen Access

Characterisation of all known multiple stellar systems within 10 pc

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Authors

JGJ González-PayoUniversidad Complutense de Madrid JCJ A CaballeroEuropean Space Astronomy Centre CCC CifuentesEuropean Space Astronomy Centre

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Randomized trial characterizes stellar multiplicity in stars and brown dwarfs, suggesting insights into galaxy structure.

Key Points

The research aims to characterize the stellar multiplicity within 10 parsecs, focusing on the distribution of angular separations, masses, and orbital periods of the systems.
Compiled data from the Washington Double Star catalogue and literature on known multiple systems.
Conducted a common proper motion and parallax search using Gaia DR3 data.
Analyzed astrometric and radial-velocity data to compute orbital solutions for seven binary pairs.
Identified 215 stars in 92 multiple systems (68 double, 19 triple, 3 quadruple, and 2 quintuple configurations).
Measured orbital periods ranging from one day to millions of years across the systems.
Determined multiplicity fraction: 41% for stars ≥ 0.50 M⊙, decreasing to 9.3% for stars ≤ 0.10 M⊙.

Cite This Study

González-Payo et al. (2026) studied this question.

synapsesocial.com/papers/69fd7e00bfa21ec5bbf0629a https://doi.org/10.1093/mnras/stag838

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Characterisation of all known multiple stellar systems within 10 pc

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Implication

Key Points

Cite This Study

Characterisation of all known multiple stellar systems within 10 pc

Discussion

Member takes

Implication

Key Points

Cite This Study

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