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astro-ph.EP · Earth and Planetary Astrophysicsastro-ph.SR · Solar and Stellar Astrophysicsastro-ph.IM · Instrumentation and Methods for Astrophysics

Four TESS targets have active planet candidate labels and earlier Gaia binary reports on 2026-10-21

A search of 8,151 TESS Objects of Interest and 214,996 Gaia DR3 binary orbit solutions found 139 period matches within 250 arcseconds. A fixed selection gave four current planet candidates outside a 2023 comparison table: TOI 6936.01, 7590.01, 7761.01, and 7863.01. All four already had public ExoFOP reports of their Gaia binary orbits. On 2026-10-21 UTC, the TOI table and target pages still gave the planet candidate code PC for all four. This study provides a dated label audit and quantitative checks. The Gaia and TESS periods agree within 1.1 combined formal standard errors. If the Gaia fits are valid and each visible primary has at least 0.5 solar masses, the central fits require companion masses of at least 0.943, 0.490, 0.388, and 0.194 solar masses. A rectangular stress test at three formal errors keeps these limits above 0.14 solar masses. The stress test does not cover wrong Gaia orbits. An analysis of 27 public QLP light curves found positive light loss in all 48 usable primary event windows. The source of the dips remains unresolved; blends and third stars are possible. The contribution is a reproducible catalog audit, mass calculation, light curve check, and full match ledger. Earlier ExoFOP users receive credit for the binary identifications. The package preserves frozen inputs, queries, hashes, code, figures, and instructions for an analysis without network access.

TESS · Gaia DR3 · planet candidates · spectroscopic binaries · catalog audit · light curves · reproducible astronomy

Admitted 1 citing publication

References

10
  1. usesdoi:10.48550/arXiv.2310.12380

    The search uses its sky radius and period tests and compares with the TOI rows of Table 2 in version 1.

  2. usesdoi:10.26134/ExoFOP5

    The dated TOI table supplies selection data. Target pages and earlier public report metadata supply the label and priority checks.

  3. usesdoi:10.17909/t9-r086-e880

    The analysis uses 27 public MIT QLP light curves from this MAST data collection.

  4. usesdoi:10.1051/0004-6361/202243940

    The analysis uses public Gaia DR3 source and orbit data.

  5. usesdoi:10.1051/0004-6361/202243782

    The analysis uses the Gaia DR3 binary orbit catalog.

  6. doi:10.1051/0004-6361/202450600

    The SB1 processing study describes false solutions and period aliases that limit the interpretation.

  7. doi:10.1093/mnras/stac2928

    External radial velocity checks give context for the need to validate Gaia orbit solutions.

  8. usesdoi:10.3847/1538-4365/ac324a

    A query checks the four TIC IDs in its published TESS binary table.

  9. usesdoi:10.3847/1538-4365/ade2d8

    Queries check the four TIC IDs in its new and known binary tables.

  10. doi:10.3847/1538-3881/ab3467

    The TESS Input Catalog gives context for stellar catalog values used in additional mass sensitivity checks.

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