Figure 3 · point file

HaloSat disk+halo extrapolation:数据点推理

HaloSat disk+halo extrapolation: point reasoning

kaaret2020_halosat_disk_halo_m31_extrapolation

P. Kaaret et al. (2020) study file

Figure 3最终值

Final Figure 3 value

0.5653859650.526442031 – 0.57770987810−15 erg cm−2 s−1 arcmin−2

十四场全部域外;仅supplemental extrapolation。

All fourteen fields are out of domain; this is only a supplemental extrapolation.

原文输入量

Native published input

73个b<-30 deg HaloSat EM拟合的empirical disk+adiabatic halo。

Empirical-disk-plus-adiabatic-halo fit to 73 HaloSat EM fields at b<-30 deg.

转换链

Conversion chain

按catalog-closed integral(n_d+n_h)^2投影M31,补充median kT、HI4PI和TBabs。

Project to M31 with the catalog-closed integral(n_d+n_h)^2 convention, adding median kT, HI4PI, and TBabs.

  1. 采用paper joint fit的exponential disk加Fang et al. adiabatic NFW-polytrope halo;parent constraints来自73个b<-30 deg HaloSat EM fields。Adopt the paper's joint exponential-disk plus Fang et al. adiabatic NFW-polytrope halo fit, constrained by 73 HaloSat EM fields at b<-30 deg.
  2. 沿每个M31 field积分paper catalog所闭合的n^2 convention,并保留disk--halo cross term;因为fitted n的particle identity未定义,不再乘1.2。Integrate the catalog-closed n^2 convention along each M31 field and retain the disk--halo cross term; because the particle identity of fitted n is undefined, do not add a factor of 1.2.EM = ∫(n_disk + n_halo)^2 ds
  3. paper未给M31方向temperature;本项目采用HaloSat median kT=0.225 keV,配APEC 3.0.9、TBabs和field-specific HI4PI转absorbed 0.5--2,并用observed weights汇总。The paper gives no temperature toward M31; this project adopts the HaloSat median kT=0.225 keV, APEC 3.0.9, TBabs, and field-specific HI4PI to obtain absorbed 0.5--2 brightness and combines fields with the observed weights.

新增假设与边界

Added assumptions and boundaries

Provenance

DOI: 10.1038/s41550-020-01215-w

figure3_reference_registry.json · frozen Figure 3 ledger