{
  "name": "FUV-based SFR Physical Inference Rules",
  "description": "Rules for inferring galaxy/star-forming properties from GALEX FUV-derived SFR, using extinction-corrected magnitudes and Kennicutt relation.",
  "version": "1.0",
  "parameters": {
    "E_bv": "Galactic reddening E(B-V) from SFD map (calibrated: ×0.86)",
    "fuv_mag_corr": "Extinction-corrected FUV AB magnitude",
    "L_FUV": "Rest-frame FUV luminosity in erg/s/Hz",
    "SFR": "Star formation rate in solar masses per year (Chabrier IMF)",
    "SFR_err": "Uncertainty on SFR (optional)"
  },
  "physical_context": {
    "timescale": "FUV traces recent star formation over ～100 Myr",
    "sensitivity": "Dominantly sensitive to O/B-type massive young stars",
    "assumptions": [
      "No internal dust correction applied (only Milky Way extinction removed)",
      "Chabrier IMF assumed",
      "No AGN contamination accounted for"
    ]
  },
  "inference_rules": [
    {
      "rule_id": "R1",
      "condition": "SFR is null or NaN or SFR <= 0",
      "conclusion": "Invalid or non-detection",
      "reasoning": "SFR must be positive; negative or missing values indicate failed photometry or extreme extinction."
    },
    {
      "rule_id": "R2",
      "condition": "fuv_mag_corr > 23.0",
      "conclusion": "Faint / Low-confidence detection",
      "reasoning": "GALEX FUV completeness limit is ～23 mag; fainter sources are unreliable for SFR estimation."
    },
    {
      "rule_id": "R3",
      "condition": "SFR < 0.01",
      "conclusion": "Quiescent / Passive galaxy",
      "reasoning": "SFR < 0.01 M☉/yr indicates minimal recent star formation, typical of early-type or red-sequence galaxies."
    },
    {
      "rule_id": "R4",
      "condition": "0.01 <= SFR < 1.0",
      "conclusion": "Normal star-forming galaxy",
      "reasoning": "Typical of main-sequence star-forming galaxies like the Milky Way (SFR ～1 M☉/yr)."
    },
    {
      "rule_id": "R5",
      "condition": "1.0 <= SFR < 10.0",
      "conclusion": "Enhanced star formation",
      "reasoning": "Higher than normal SFR, possibly due to interaction, merger, or gas-rich environment."
    },
    {
      "rule_id": "R6",
      "condition": "SFR >= 10.0",
      "conclusion": "Starburst galaxy",
      "reasoning": "Extreme star formation activity, often associated with ULIRGs or post-merger systems."
    },
    {
      "rule_id": "R7",
      "condition": "E_bv > 0.1 AND fuv_mag_corr much brighter than raw fuv_mag",
      "conclusion": "High Galactic extinction corrected",
      "reasoning": "Large extinction correction implies original flux was heavily attenuated; result may still be uncertain if internal dust present."
    },
    {
      "rule_id": "R8",
      "condition": "SFR_err / SFR > 0.5 (if SFR_err available)",
      "conclusion": "High uncertainty in SFR",
      "reasoning": "Relative error >50% suggests low photon count or poor photometric quality; interpret with caution."
    }
  ],
  "classification_mapping": {
    "Invalid or non-detection": "数据无效或未探测到可靠紫外辐射",
    "Faint / Low-confidence detection": "紫外信号微弱，可能低于探测极限",
    "Quiescent / Passive galaxy": "宁静星系，几乎没有新恒星形成",
    "Normal star-forming galaxy": "正常恒星形成星系（如银河系）",
    "Enhanced star formation": "增强恒星形成活动",
    "Starburst galaxy": "星暴星系，剧烈恒星形成",
    "High Galactic extinction corrected": "已做显著银河系消光改正，结果需谨慎",
    "High uncertainty in SFR": "SFR 误差大，可靠性低"
  },
   "references": [
  {
    "id": "ref1",
    "citation": "Fanaroff, B. L., & Riley, J. M. 1974, MNRAS, 167, P31",
    "description": "Original definition of FR I and FR II radio galaxies based on morphology."
  }]

}