What is recorded here?
Gaia DR3 astrometric selection and follow-up radial-velocity spectroscopy identified a Sun-like star with a massive, optically dark companion. The version-1 joint orbital fit estimated a companion mass of 9.78 ± 0.18 solar masses and a period of 185.63 ± 0.05 days, supporting a dormant black-hole interpretation.
Source-linked catalogue note. A detailed explanatory guide has not yet been prepared for this entry.
Scientific scope
The companion was inferred dynamically rather than imaged. This estimate is specific to the September 2022 preprint and its stellar-mass and dark-companion model; Gaia epoch-level astrometry was unavailable and its observations covered roughly half the orbital phase. The radial-velocity mass function and spectroscopic limits provide additional checks, but later or published values were not independently reconciled. The authors discuss a single black hole or a close binary of compact objects containing at least one black hole; nature of the dark companion is inferred from orbital mass and luminosity constraints, not direct imaging. The proposed formation channels and population estimates depend on uncertain binary-evolution and Gaia selection models, and are not independently observed histories.
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People and systems
Kareem El-Badry; Hans-Walter Rix; Eliot Quataert; Andrew W. Howard; Howard Isaacson; Jim Fuller; Keith Hawkins; Katelyn Breivik; Kaze W. K. Wong; Antonio C. Rodriguez; Charlie Conroy; Sahar Shahaf; Tsevi Mazeh; Frédéric Arenou; Kevin B. Burdge; Dolev Bashi; Simchon Faigler; Daniel R. Weisz; Rhys Seeburger; Silvia Almada Monter; Jennifer Wojno
These are the listed authors of the cited contribution sources. Paper authorship does not quantify individual effort. An incomplete list is explicitly marked; same names are not automatically merged.
Research locations and affiliations
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English catalogue narrative
Gaia BH1: a Sun-like star orbiting a massive dark companion
Gaia DR3 astrometric selection and follow-up radial-velocity spectroscopy identified a Sun-like star with a massive, optically dark companion. The version-1 joint orbital fit estimated a companion mass of 9.78 ± 0.18 solar masses and a period of 185.63 ± 0.05 days, supporting a dormant black-hole interpretation.
Scientific scope
The companion was inferred dynamically rather than imaged. This estimate is specific to the September 2022 preprint and its stellar-mass and dark-companion model; Gaia epoch-level astrometry was unavailable and its observations covered roughly half the orbital phase. The radial-velocity mass function and spectroscopic limits provide additional checks, but later or published values were not independently reconciled. The authors discuss a single black hole or a close binary of compact objects containing at least one black hole; nature of the dark companion is inferred from orbital mass and luminosity constraints, not direct imaging. The proposed formation channels and population estimates depend on uncertain binary-evolution and Gaia selection models, and are not independently observed histories.
Reading status
This is a source-linked WRS catalogue note. A full explanatory guide and independent scientific reconstruction have not been completed for this entry. Read the identified original work for its complete narrative and arguments.
People and systems
Kareem El-Badry; Hans-Walter Rix; Eliot Quataert; Andrew W. Howard; Howard Isaacson; Jim Fuller; Keith Hawkins; Katelyn Breivik; Kaze W. K. Wong; Antonio C. Rodriguez; Charlie Conroy; Sahar Shahaf; Tsevi Mazeh; Frédéric Arenou; Kevin B. Burdge; Dolev Bashi; Simchon Faigler; Daniel R. Weisz; Rhys Seeburger; Silvia Almada Monter; Jennifer Wojno
These are the listed authors of the cited contribution sources. Paper authorship does not quantify individual effort. An incomplete list is explicitly marked; same names are not automatically merged.