{
  "schema_version": 1,
  "figure_band": "absorbed 0.5-2.0 keV",
  "flux_unit": "1e-15 erg cm-2 s-1 arcmin-2",
  "efeds": {
    "reference": "Ponti et al. (2023)",
    "doi": "10.1051/0004-6361/202243992",
    "scope": "107.5 deg2 eFEDS field; l=220-235 deg, b=20-40 deg; western-sky comparator, not an M31-footprint prior",
    "native_quantity": "absorbed CGM-component surface brightness from Table 4",
    "conversion": "Lodders APEC with the published kT/Z; derive F(0.5-0.6)/F(0.3-0.6) with 40-node lognormal-NH quadrature approximating disnht(logNH=20.51,sigma=0.117), then add the published 0.6-2.0 flux",
    "scenarios": [
      {
        "scenario_id": "negligible_swcx",
        "temperature_keV": 0.157,
        "abundance_solar": 0.068,
        "mean_log10_nh_cm-2": 20.51,
        "sigma_log10_nh": 0.117,
        "published_0p3_0p6_1e13_deg-2": 24.1,
        "published_0p6_2p0_1e13_deg-2": 5.6,
        "model_ratio_0p5_0p6_to_0p3_0p6": 0.3748700096398549,
        "flux_0p5_2p0_plot_central_fluxunit": 0.4065102008977918,
        "flux_0p5_2p0_reconstruction_low_fluxunit": 0.4065102008977918,
        "flux_0p5_2p0_reconstruction_high_fluxunit": 0.4065102008977918
      },
      {
        "scenario_id": "high_swcx",
        "temperature_keV": 0.173,
        "abundance_solar": 0.058,
        "mean_log10_nh_cm-2": 20.51,
        "sigma_log10_nh": 0.117,
        "published_0p3_0p6_1e13_deg-2": 15.6,
        "published_0p6_2p0_1e13_deg-2": 4.9,
        "model_ratio_0p5_0p6_to_0p3_0p6": 0.3579161475000017,
        "flux_0p5_2p0_plot_central_fluxunit": 0.2912081083611119,
        "flux_0p5_2p0_reconstruction_low_fluxunit": 0.2912081083611119,
        "flux_0p5_2p0_reconstruction_high_fluxunit": 0.2912081083611119
      }
    ],
    "envelope_low_fluxunit": 0.2912081083611119,
    "envelope_high_fluxunit": 0.4065102008977918
  },
  "henley_shelton": {
    "reference": "Henley & Shelton (2013)",
    "doi": "10.1088/0004-637X/773/2/92",
    "vizier_catalog": "J/ApJ/773/92",
    "input_sha256": "c2b3fee63976e64d87bdb867fe43a5ece8de680fa7f980041c6951026ef4350e",
    "scope": "high-latitude XMM-Newton sightline population; not an M31-footprint prior",
    "native_quantity": "intrinsic 0.5-2.0 keV one-temperature Raymond-Smith halo surface brightness",
    "conversion": "field-specific XSraymond * XSphabs using published T and LAB NHI; angr abundances and bcmc cross-sections",
    "summary": {
      "published_main_sightlines": 110,
      "published_detections": 87,
      "converted_detections": 86,
      "excluded_without_unique_nh": 1,
      "excluded_seq": 103,
      "minimum_fluxunit": 0.11511326288547512,
      "p16_fluxunit": 0.24609731349090522,
      "q25_fluxunit": 0.27354775115143726,
      "median_fluxunit": 0.38461005704507567,
      "q75_fluxunit": 0.5490818824107443,
      "p84_fluxunit": 0.6903616597993579,
      "maximum_fluxunit": 1.5804112897822482
    }
  },
  "ueda_disk": {
    "reference": "Ueda et al. (2022)",
    "doi": "10.1093/pasj/psac077",
    "scope": "exponential electron-density disk fitted to the 2005-2009 Suzaku sample; projected through the 14-field M31 footprint",
    "native_quantity": "EM = integral n_e n_H ds for the approximately 0.22 keV MWH component",
    "model": "n_e = 3.4e-3 exp(-R/7.0 kpc) exp(-|z|/2.7 kpc) cm-3; n_H=n_e/1.2",
    "conversion": "field-specific Lodders APEC(kT=0.22 keV,Z=1) * phabs(HI4PI); absorbed 0.5-2.0 keV",
    "interpretation": "M31-footprint directional conditional model; nominal field spread and n0 marginal sensitivity are not a posterior interval",
    "input_sha256": "e71b56234edeed49241304f06c0176c7238e05eff6ed5feb089c586e16997a12",
    "summary": {
      "footprint_fields": 14,
      "nominal_minimum_fluxunit": 0.2894675687845744,
      "nominal_median_fluxunit": 0.3144234242959709,
      "nominal_maximum_fluxunit": 0.3206666288460409,
      "n0_sensitivity_low_fluxunit": 0.27269046920968987,
      "n0_sensitivity_high_fluxunit": 0.339806764996886,
      "all_field_inverse_variance_fluxunit": 0.311904286700407,
      "all_field_inverse_variance_n0_low_fluxunit": 0.29382678911482973,
      "all_field_inverse_variance_n0_high_fluxunit": 0.3305214110795836
    }
  }
}