Determining accurate radii and luminosities using multiband BC for LAMOST stars within 500 pc

Okuyan O., BAKIŞ V., Eker Z.

Advances in Space Research, 2026 (SCI-Expanded, Scopus) identifier

  • Yayın Türü: Makale / Tam Makale
  • Basım Tarihi: 2026
  • Doi Numarası: 10.1016/j.asr.2026.03.029
  • Dergi Adı: Advances in Space Research
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Artic & Antarctic Regions, Compendex, INSPEC, MEDLINE
  • Anahtar Kelimeler: Methods: data analysis, Stars: fundamental parameters, Stars: masses, Stars: radii
  • Akdeniz Üniversitesi Adresli: Evet

Özet

Accurate determination of stellar parameters, including radii, luminosities, and masses, is fundamental to understanding stellar evolution. In this study, we present a refined method for calculating these parameters by employing multiband bolometric corrections (BC) based on a comprehensive Spectral Energy Distribution (SED) analysis of 32862 stars selected from the LAMOST catalog within 500 pc. Our results show strong agreement between the derived stellar radii and the FLAME method from the Gaia catalog, while discrepancies with the GSPPHOT method highlight differences in modelling assumptions. The extinction values derived from our analysis, compared with those from Gaia, demonstrate a robust correlation with a slight systematic offset. The final stellar parameters, including mass, luminosity, and radius, are provided, offering a more accurate framework for studying stellar populations. These results contribute to a better understanding of stellar structure and evolution, with implications for future large-scale stellar surveys.