Table2_FASHI_DR2_Extragalactic_HI_Source_Catalog.csv
Column Descriptions
Column 1: name - Source name in J2000 sexagesimal format (Jhhmmss.ss+ddmmss.s)
Column 2: fashi_id - FASHI unique sequential identifier
Column 3: ra - Right Ascension (J2000) in degrees
Column 4: dec - Declination (J2000) in degrees
Column 5: radec_err - Positional uncertainty in degrees
Column 6: v_opt - Heliocentric optical velocity (cz⊙) in km s⁻¹
Column 7: v_opt_err - Uncertainty in v_opt in km s⁻¹
Column 8: freq - Central frequency in MHz
Column 9: freq_err - Uncertainty in frequency in MHz
Column 10: z_opt - Redshift (optical definition)
Column 11: z_opt_err - Uncertainty in redshift
Column 12: ell_maj - Ellipse major axis in arcmin (flux integration aperture)
Column 13: ell_min - Ellipse minor axis in arcmin (flux integration aperture)
Column 14: ell_pa - Ellipse position angle in degrees
Column 15: W_50 - Line width at 50% of peak flux in km s⁻¹
Column 16: W_50_err - Uncertainty in W_50 in km s⁻¹
Column 17: W_20 - Line width at 20% of peak flux in km s⁻¹
Column 18: W_20_err - Uncertainty in W_20 in km s⁻¹
Column 19: snr - Signal-to-noise ratio
Column 20: rms - Integrated spectral noise (σ_rms) in mJy at 6.4 km s⁻¹ resolution
Column 21: rms_beam - Per-source detection sensitivity (fσ) in mJy beam⁻¹
Column 22: v_rad - Radio velocity in km s⁻¹
Column 23: v_rad_err - Uncertainty in radio velocity in km s⁻¹
Column 24: v_rad_min - Minimum radio velocity (km s⁻¹) of the velocity integration window for direct summation H I flux density
Column 25: v_rad_max - Maximum radio velocity (km s⁻¹) of the velocity integration window for direct summation H I flux density
Column 26: S_bf - Integrated H I flux density from busy-function fitting in mJy km s⁻¹
Column 27: F_peak_bf - Peak H I line flux from busy-function fitting in mJy
Column 28: S_sum - Integrated H I flux density from direct summation in mJy km s⁻¹
Column 29: F_peak_sum - Peak flux from direct summation in mJy
Column 30: S_err - Uncertainty in integrated flux in mJy km s⁻¹
Column 31: F_peak_err - Uncertainty in peak flux in mJy
Column 32: distance - Luminosity distance in Mpc
Column 33: distance_err - Uncertainty in distance in Mpc
Column 34: mass - Logarithmic H I mass log(M_HI/M⊙)
Column 35: mass_err - Uncertainty in log(M_HI/M⊙)
Column 36: completeness - Sample completeness
Column 37: Vmax - Maximum comoving volume in Mpc³

Table3_FASHI_ALFALFA_Cross_Match_Catalog.csv
Column Descriptions
Column 1: FASHI_ID - FASHI unique sequential identifier
Column 2: FASHI_RA - FASHI Right Ascension (J2000) in degrees
Column 3: FASHI_DEC - FASHI Declination (J2000) in degrees
Column 4: FASHI_cz - FASHI Heliocentric optical velocity (cz⊙) in km s⁻¹
Column 5: FASHI_W50 - FASHI Line width at 50% of peak flux in km s⁻¹
Column 6: FASHI_S - FASHI Integrated H I flux density in mJy km s⁻¹
Column 7: FASHI_logMH - FASHI Logarithmic H I mass log(M_HI/M⊙)
Column 8: AGCNr - ALFALFA source identifier (Arecibo General Catalog number)
Column 9: ALFALFA_RA - ALFALFA Right Ascension (J2000) in degrees
Column 10: ALFALFA_DEC - ALFALFA Declination (J2000) in degrees
Column 11: ALFALFA_Vhelio - ALFALFA Heliocentric velocity in km s⁻¹
Column 12: ALFALFA_W50 - ALFALFA Line width at 50% of peak flux in km s⁻¹
Column 13: ALFALFA_S - ALFALFA Integrated H I flux density in mJy km s⁻¹
Column 14: ALFALFA_logMH - ALFALFA Logarithmic H I mass log(M_HI/M⊙)