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Map of the Interstellar Continuum FUV Field within 800 Parsecs

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NIAID Data Ecosystem2026-05-10 收录
下载链接:
https://doi.org/10.7910/DVN/UUTZ2Y
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We provide 4 versions of the FUV radiation map extending out to 800 pc from the Sun. These fall into 2 categories. Files containing the string 'bins' are 4-dimensional arrays of size 161x161x161x6, where 161 is the number of spatial grid cells in x, y, and z, and 6 is the number of spectral bins, as dictated in Table 1 in our paper. The remaining files are 161x161x161x1 arrays, which contain the total FUV energy density in erg/cm^3 over the wavelength range 91.18-206.64nm. All maps follow an (x, y, z) order in Galactic Cartesian coordinates. Each grid represents a cubic volume of 10x10x10 pc^3. In Python convention, the array element arr[0, 0, 0] corresponds to the spatial position (x, y, z) = (-800, -800, -800) pc. We also provide our stellar catalog, which is divided into 2 subsets. The data for each star was acquired as per Figure 2 in our paper. The individual files are defined as follows: 'uv_map.npy': The total FUV radiation field without any corrections. 'uv_map_smoothed.npy': A smoothed version of the total FUV map, where distances of stars to each grid center are artificially increased, as described by Eq. 6 in our paper. 'uv_map_bins.npy': The total FUV in each of the six spectral bins listed in Table 1. 'uv_map_absorption_bins.npy': Array containing the binned FUV computed using extinction that only includes the absorption cross-section, as described in section 4.2 in our paper. 'uv_map_catalog_part1.csv': Part 1 of the stellar catalog. 'uv_map_catalog_part2.csv': Part 2 of the stellar catalog. Each of the columns for the catalogs are described as follows: ID: Pastel ID source_id: GAIA DR3 ID TYC: Tycho ID HIP: Hipparcos ID VT_mag: Tycho-V magnitude (mag) Teff: Effective temperature (K) logg: Log-base 10 of surface gravity in cgs (dex). met: [Fe/H] (dex) A_V: Visual extinction (mag) x, y, z: Galactic Cartesian coordinates (pc) radius: Stellar radius (R_SUN) mass: Stellar mass (M_SUN) u_1, u_2, ..., u_6: Integrated energy density (flux divided by c) for each of the six bins described in Table 1.
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2026-01-21
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