On the Performances of Estimating Stellar Atmospheric Parameters from CSST Broad-band Photometry

• DOI: 10.48550/arxiv.2401.05948
• Publication Date: 2024-01-01
• Authors: R. Shi; Yang Huang; Xinyi Li; Huawei Zhang
• Keywords: Ultraviolet; Effective temperature

Deriving atmospheric parameters of a large sample stars is vital importance to understand the formation and evolution Milky Way. Photometric surveys, especially those with near-ultraviolet filters, can offer accurate measurements stellar parameters, precision comparable that from low/medium resolution spectroscopy. In this study, we explore capability measuring CSST broad-band photometry (particularly bands), based on synthetic colors derived model spectra. We find optical filter systems adopted by show significant sensitivities metallicity. According our mock data tests, photometric metallicity quite high, typical values 0.17 dex 0.20 for dwarf giant stars, respectively. The effective temperature estimated are within 50 K.