Data from SPARCS Calibration Research
收藏DataCite Commons2023-04-06 更新2025-04-09 收录
下载链接：
http://archive.stsci.edu/doi/resolve/resolve.html?doi=10.17909/ff75-av94
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资源简介：
The Star-Planet Activity Research CubeSat (SPARCS) is an upcoming NASA mission to understand the impact of low-mass stellar radiation on exoplanets. SPARCS will obtain photometric observations of low-mass stars in two bands: 153-171 nm (Far-UV; FUV) and 258-308 nm (Near-UV; NUV). SPARCS’ absolute calibration will be derived by observing White Dwarfs (WDs). WD selected as SPARCS calibrators should vary ≤7%. Here we present a study of UV variability of potential WD calibrators, based on GALEX and HST/UVIS photometric observations. We collected data on a sample of 29 WDs from the Mikulski Archive for Space Telescopes (MAST) and identified 8 potential SPARCS calibration targets in the NUV and 5 in the FUV, for a total of 10 distinct targets. Statistical analysis shows variability <3% in both bands. For some stars, the intrinsic astrophysical variability is smaller than these limits.
提供机构：
STScI/MAST
创建时间：
2023-04-06
