The strong lensing model of MACS J0035.4−2015 | Astronomy & Astrophysics (A&A)

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Volume 698 (June 2025)

A&A, 698 (2025) A161

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Table 4.

Comparing two different models of the DMH (PIEMD and NFW).

Free parameter k	PIEMD	NFW
x^DMH [″]	$1 . 6_{- 1.3}^{+ 1.6}$ $1.6_{-1.3}^{+1.6}$	$0 . 75_{- 0.45}^{+ 0.48}$ $0.75_{-0.45}^{+0.48}$
y^DMH [″]	$0 . 053_{- 0.88}^{+ 0.74}$ $0.053_{-0.88}^{+0.74}$	$0 . 33_{- 0.27}^{+ 0.25}$ $0.33_{-0.27}^{+0.25}$
b/a^DMH	$0 . 328_{- 0.026}^{+ 0.043}$ $0.328_{-0.026}^{+0.043}$	$0 . 584_{- 0.015}^{+ 0.013}$ $0.584_{-0.015}^{+0.013}$
θ^DMH [rad]	$2 . 643_{- 0.0076}^{+ 0.0078}$ $2.643_{-0.0076}^{+0.0078}$	$2 . 642_{- 0.0038}^{+ 0.0038}$ $2.642_{-0.0038}^{+0.0038}$
$θ_{e}^{DMH}$ $\theta_{\mathrm{e}}^{\mathrm{DMH}}$ [″]	$26 . 6_{- 3.2}^{+ 2.0}$ $26.6_{-3.2}^{+2.0}$	$19 . 0_{- 1.4}^{+ 1.2}$ $19.0_{-1.4}^{+1.2}$
$r_{core}^{DMH}$ $r_{\mathrm{core}}^{\mathrm{DMH}}$ [″]	$20_{- 2.4}^{+ 3.0}$ $20_{-2.4}^{+3.0}$	–
$r_{s}^{DMH}$ $r_{\mathrm{s}}^{\mathrm{DMH}}$ [″]	–	$92 . 0_{- 8.5}^{+ 11.0}$ $92.0_{-8.5}^{+11.0}$
$θ_{e}^{BCG}$ $\theta_{\mathrm{e}}^{\mathrm{BCG}}$ [″]	$5 . 5_{- 1.0}^{+ 0.79}$ $5.5_{-1.0}^{+0.79}$	$2 . 4_{- 0.69}^{+ 0.94}$ $2.4_{-0.69}^{+0.94}$
$r_{t}^{BCG}$ $r_{\mathrm{t}}^{\mathrm{BCG}}$ [″]	$2 . 3_{- 1.2}^{+ 1.7}$ $2.3_{-1.2}^{+1.7}$	$9 . 9_{- 4.5}^{+ 7.6}$ $9.9_{-4.5}^{+7.6}$

Notes. Median of the free parameters with 68% confidence level for the DMH_PIEMD + BCG_cir + CM and DMH_NFW + BCG_cir + CM models. x^DMH and y^DMH are relative to the center position of the BCG (RA = 8.8588913 Dec = −20.2622861) and increase to the east and north, respectively.

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