Quantifying observational projection effects with a simulation-based hot CGM model

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Volume 697 (May 2025)

A&A, 697 (2025) A22

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Table 4.

For every halo mass bin, we present the best-fitting parameters of the model (see Eq. (7)).

log₁₀M_200m/M_⊙ min max	log₁₀S₀	r_c [kpc]	β	r_s	ϵ
12.5–13	$36 . 804_{- 0.001}^{+ 0.001}$ $36.804_{-0.001}^{+0.001}$	$15 . 4_{- 0.2}^{+ 0.2}$ $15.4_{-0.2}^{+0.2}$	$0 . 575_{- 0.001}^{+ 0.001}$ $0.575_{-0.001}^{+0.001}$	$322_{- 31}^{+ 33}$ $322_{-31}^{+33}$	$3 . 0_{- 0.4}^{+ 0.6}$ $3.0_{-0.4}^{+0.6}$
13–13.5	$37 . 414_{- 0.002}^{+ 0.002}$ $37.414_{-0.002}^{+0.002}$	$7 . 05_{- 0.07}^{+ 0.08}$ $7.05_{-0.07}^{+0.08}$	$0 . 307_{- 0.001}^{+ 0.001}$ $0.307_{-0.001}^{+0.001}$	$276 . 0_{- 0.9}^{+ 0.9}$ $276.0_{-0.9}^{+0.9}$	$4 . 80_{- 0.03}^{+ 0.02}$ $4.80_{-0.03}^{+0.02}$
13.5–14	$38 . 085_{- 0.002}^{+ 0.002}$ $38.085_{-0.002}^{+0.002}$	$4 . 08_{- 0.06}^{+ 0.07}$ $4.08_{-0.06}^{+0.07}$	$0 . 242_{- 0.001}^{+ 0.001}$ $0.242_{-0.001}^{+0.001}$	$412 . 7_{- 0.5}^{+ 0.5}$ $412.7_{-0.5}^{+0.5}$	$4 . 894_{- 0.002}^{+ 0.002}$ $4.894_{-0.002}^{+0.002}$

Notes. S₀, the central surface brightness; r_c, the core radius; β, the exponent quantifying the slope of the profile; r_s, the scale radius at which the slope changes to ϵ.

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