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Peer-reviewedCC BY 4.0The Astrophysical Journal Supplement Series

The Dynamic Masses of 47 Single-lined Spectroscopic Binaries: Combining Spectroscopic and Astrometric Data

  • Xiaoli Wang1,2
  • Fang Xia3
  • Yanning Fu3
  1. 1Qilu Normal University
  2. 2Shandong Key Laboratory of Space Environment and Exploration Technology
  3. 3Chinese Academy of Sciences
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Abstract

We compiled a sample of 47 single-lined spectroscopic binaries (SB1s) with available relative astrometric measurements. By combining radial velocities, relative astrometry, and absolute astrometry when available and reliable, we determine the component masses and orbital solutions of these SB1s. The orbital periods span a broad range from 0.67 to 186 yr. Among these systems, 15 are solved independently for the first time using combined orbital solutions. The derived component masses range from 13 M ⊙ down to 0.06 M ⊙ , of which 24 individual components have masses smaller than 0.7 M ⊙ . For systems with a known magnitude difference or individual magnitudes, we estimate the absolute magnitudes of the components in the V and K bands. With a few exceptions, the derived main-sequence component masses are consistent with the empirical mass–luminosity relation in the V and K bands.

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Cite

BibTeXRIS
BibTeX
@article{wang2026dynamic,
  title = {{The Dynamic Masses of 47 Single-lined Spectroscopic Binaries: Combining Spectroscopic and Astrometric Data}},
  author = {Xiaoli Wang and Fang Xia and Yanning Fu},
  journal = {The Astrophysical Journal Supplement Series},
  year = {2026},
  month = oct,
  doi = {10.3847/1538-4365/ae9ff4},
  url = {https://iopscience.iop.org/article/10.3847/1538-4365/ae9ff4},
  note = {CC BY 4.0},
}
RIS
TY  - JOUR
TI  - The Dynamic Masses of 47 Single-lined Spectroscopic Binaries: Combining Spectroscopic and Astrometric Data
AU  - Xiaoli Wang
AU  - Fang Xia
AU  - Yanning Fu
PY  - 2026
DA  - 2026/10/01
JO  - The Astrophysical Journal Supplement Series
DO  - 10.3847/1538-4365/ae9ff4
UR  - https://iopscience.iop.org/article/10.3847/1538-4365/ae9ff4
AB  - We compiled a sample of 47 single-lined spectroscopic binaries (SB1s) with available relative astrometric measurements. By combining radial velocities, relative astrometry, and absolute astrometry when available and reliable, we determine the component masses and orbital solutions of these SB1s. The orbital periods span a broad range from 0.67 to 186 yr. Among these systems, 15 are solved independently for the first time using combined orbital solutions. The derived component masses range from 13 M ⊙ down to 0.06 M ⊙ , of which 24 individual components have masses smaller than 0.7 M ⊙ . For systems with a known magnitude difference or individual magnitudes, we estimate the absolute magnitudes of the components in the V and K bands. With a few exceptions, the derived main-sequence component masses are consistent with the empirical mass–luminosity relation in the V and K bands.
SN  - 0067-0049
SN  - 1538-4365
ER  -