{
  "abstract": "Context. Long-baseline optical interferometry provides spatially resolved observations of close binaries, complementing spectroscopic and photometric constraints on stellar parameters. Aims. With the capabilities of the new visible CHARA/SPICA instrument and the multiple spectral band operation of CHARA, our goal is to resolve orbits of short-period binaries and develop a robust framework for combining interferometric, spectroscopic, and photometric observations into a single consistent model. Methods. For our target sample, we selected suitable binaries based on brightness, angular separation, and orbital properties based on the expected performance of the CHARA/SPICA instrument. As a case study, we analysed the bright eclipsing binary β Aurigae, composed of two slightly evolved A1 stars. We combined new interferometric observations of β Aur obtained with CHARA/SPICA, MIRC–X, and MYSTIC with archival MIRC data, radial velocities, and light curves. We first derived astrometric positions from interferometric observables and computed an orbital solution. Afterwards, we implemented a unified model, capable of tying interferometric modelling with the ellc code to simultaneously fit all observables using MCMC sampling. We performed a detailed analysis of the noise statistics of each data set and in the end we adopted a profile likelihood approach to account for underestimated noise and systematics. Results. We derived a consistent orbital and physical solution for β Aur through joint modelling. The inclusion of interferometric data tightly constrains the angular semi-major axis and inclination. Using profile likelihood to account for the different intrinsic levels of uncertainty of the fundamentally different observables, we derived the masses of the two stars, M 1 = 2.359 ± 0.005 M ⊙ and M 2 = 2.293 ± 0.004 M ⊙ , their radii R 1 = 2.752 ± 0.002 R ⊙ and R 2 = 2.622 ± 0.002 R ⊙ , and the distance to the binary, d = 24.30 ± 0.05 pc.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.03886",
  "author_total": 26,
  "authors": [
    {
      "name": "J. Jonák"
    },
    {
      "name": "D. Mourard"
    },
    {
      "name": "J. Monnier"
    },
    {
      "name": "S. Hoin"
    },
    {
      "name": "M. Brož"
    },
    {
      "name": "A. Oplištilová"
    },
    {
      "name": "K. Kubiak"
    },
    {
      "name": "N. Ebrahimkutty"
    },
    {
      "name": "R. Ibañez-Bustos"
    },
    {
      "name": "H. Nowacki"
    },
    {
      "name": "M. Vrard"
    },
    {
      "name": "M. Bailleul"
    },
    {
      "name": "P. Bério"
    },
    {
      "name": "J. Dejonghe"
    },
    {
      "name": "R. Ligi"
    },
    {
      "name": "F. Morand"
    },
    {
      "name": "Nicolas Nardetto"
    },
    {
      "name": "D. Salabert"
    },
    {
      "name": "S. Deheuvels"
    },
    {
      "name": "A. Domiciano de Souza"
    },
    {
      "name": "A. Meilland"
    },
    {
      "name": "K. Perraut"
    },
    {
      "name": "M. Wittkowski"
    },
    {
      "name": "S. Kraus"
    },
    {
      "name": "N. Anugu"
    },
    {
      "name": "M. Gutierrez"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/43qm4zydwnbfp.bib",
  "cited_by": 0,
  "doi": "10.1051/0004-6361/202661076",
  "fulltext_url": null,
  "id": "43qm4zydwnbfp",
  "issns": [
    "0004-6361",
    "1432-0746"
  ],
  "landing_url": "https://hal.science/hal-05791665v1",
  "language": "en",
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "astro-ph.SR"
    ],
    [
      "hal",
      "0.phys"
    ],
    [
      "hal",
      "1.phys.astr"
    ],
    [
      "hal",
      "2.phys.astr.sr"
    ],
    [
      "openalex",
      "3103|Stellar, planetary, and galactic studies"
    ]
  ],
  "openalex": "W7171975571",
  "pdf_url": "https://hal.science/hal-05791665/document",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-03",
  "publisher": "EDP Sciences",
  "ris": "https://research.draconitic.com/paper/43qm4zydwnbfp.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:56Z",
      "native_id": "hal-05791665",
      "source": "hal",
      "url": "https://hal.science/hal-05791665v1"
    },
    {
      "first_seen": "2026-10-30T12:18:31Z",
      "native_id": "2609.03886",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.03886"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.SR",
      "subfield": "stellar"
    },
    {
      "field": "physics",
      "origin": "hal:0.phys",
      "subfield": "general"
    }
  ],
  "title": "Interferometric Survey of Stellar Parameters: Mass of the metallic A-type binary β Aur",
  "title_text": "Interferometric Survey of Stellar Parameters: Mass of the metallic A-type binary β Aur",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:18:31Z",
  "url": "https://research.draconitic.com/paper/43qm4zydwnbfp",
  "venue": "Astronomy & Astrophysics - A&A",
  "versions": [
    {
      "doi": "10.1051/0004-6361/202661076",
      "pid": "43qm4zydwnbfp",
      "relation": "published-as",
      "title": "Interferometric Survey of Stellar Parameters: Mass of the metallic A-type binary β Aur",
      "venue": "Astronomy & Astrophysics - A&A"
    }
  ]
}