Linking Mg II and [O II] spatial distribution to ionizing photon escape in confirmed LyC leakers and non-leakers

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Volume 687 (July 2024)

A&A, 687 (2024) A73

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Table 2.

Results from our two-dimensional exponential fitting procedure (Sect. 3.3).

ID	rs_Mg II	rs_cont@Mg II	rs_[O II]	rs_{Cont@[O II]}	Δ_{Mg II−[O II]}	Δ_{[Mg II]−cont}	Δ_{[O II]−cont}
	[kpc]	[kpc]	[kpc]	[kpc]	[kpc]	[kpc]	[kpc]
J0047+0154	2.47 ± 0.06^h	< 0.8	1.99 ± 0.01^h	< 0.6	2.5 ± 0.1^o	2.8 ± 0.1^o	0.30 ± 0.05^o
J0130-0014	–	–	< 0.4	< 0.5	–	–	1.09 ± 0.14^o
J0141-0304	0.56 ± 0.02	0.61 ± 0.06	< 0.6	0.60 ± 0.03	0.01 ± 0.03	0.14 ± 0.07	0.21 ± 0.03^o
J0804+4726^*	–	–	< 1.2	< 1.2	–	–	2.16 ± 0.49^o
J0811+4141	1.40 ± 0.25	3.60 ± 0.26	1.22 ± 0.02^h	< 1.0	1.36 ± 0.27^o	0.92 ± 0.53	0.69 ± 0.07^o
J0834+4805	2.27 ± 0.29	2.84 ± 0.11	1.79 ± 0.01^h	< 0.8	1.27 ± 0.25^o	1.59 ± 0.39^o	0.12 ± 0.02^o
J0844+5312	1.05 ± 0.05^h	0.59 ± 0.13	1.05 ± 0.01^h	0.96 ± 0.06	–	0.29 ± 0.13^o	0.22 ± 0.07^o
J0912+5050	1.28 ± 0.22	2.68 ± 0.15	1.67 ± 0.01^h	< 0.8	1.76 ± 0.19^o	1.68 ± 0.34^o	0.43 ± 0.02^o
J0919+4906	< 1.3	1.76 ± 1.55	< 0.8	< 1.6	2.25 ± 0.19^o	3.5 ± 1.5	1.73 ± 0.67
J0940+5932	< 1.5	< 1.3	1.97 ± 0.02^h	< 0.9	2.18 ± 0.79	2.0 ± 0.84	0.4 ± 0.03^o
J1014+5501	2.90 ± 0.21^h	2.35 ± 0.17	1.47 ± 0.01	2.21 ± 0.13	0.96 ± 0.28^o	1.08 ± 0.45	0.33 ± 0.13
J1033+6353^*	2.03 ± 0.08^h	1.72 ± 0.07	1.83 ± 0.01^h	< 1.2	0.47 ± 0.09^o	0.75 ± 0.14^o	0.09 ± 0.02^o
J1046+5827	1.21 ± 0.05^h	0.85 ± 0.05	0.74 ± 0.01^h	0.68 ± 0.04	0.53 ± 0.05^o	0.36 ± 0.09^o	0.31 ± 0.04^o
J1137+3605	< 0.4	0.94 ± 0.07	< 0.4	0.88 ± 0.03	0.39 ± 0.08^o	0.84 ± 0.12^o	0.31 ± 0.03^o
J1154+2443^*	< 0.4	< 0.5	< 0.5	< 0.4	0.07 ± 0.02^o	0.08 ± 0.02^o	0.01 ± 0.01
J1157+5801	0.43 ± 0.25	< 1.2	0.56 ± 0.01	0.77 ± 0.07	1.02 ± 0.37	1.71 ± 0.58	0.85 ± 0.09^o
J1243+4646^*	< 0.3	< 0.3	< 0.5	0.4 ± 0.1	0.08 ± 0.01^o	0.13 ± 0.04	0.48 ± 0.01^o
J1256+4509^*	< 0.4	< 0.5	< 0.5	< 0.3	0.11 ± 0.02^o	0.03 ± 0.02	0.19 ± 0.06^o
J1352+5617	1.27 ± 0.04	1.4 ± 0.1	0.93 ± 0.01	1.10 ± 0.06	0.28 ± 0.05^o	0.38 ± 0.14	0.07 ± 0.06
J1503+3644	1.06 ± 0.03^h	0.92 ± 0.05	–	–	–	0.20 ± 0.07	–
J1517+3705	2.06 ± 0.11^h	1.35 ± 0.14	1.46 ± 0.01^h	< 1.0	0.39 ± 0.11^o	0.54 ± 0.25	0.26 ± 0.04^o
J1648+4957	2.26 ± 0.25	3.13 ± 0.32	2.01 ± 0.02^h	< 1.3	0.77 ± 0.28	2.1 ± 0.8	0.79 ± 0.08^o

Notes. ID: source identifier. Objects identified with * are considered as strong LyC leakers following the criteria of Flury et al. (2022b): > 5σ detection and $f_{esc}^{LyC} > 5 %$ $f_{\mathrm{esc}}^{\mathrm{LyC}} > 5\%$ . rs_{Mg II([O II])}: exponential scale length of the Mg II ([O II]) emission in physical kpc. The nebular emission scale lengths that are significantly more extended than the continuum are marked with h for “halo” (see Sect. 3.4). rs_{cont@Mg II([O II])}: exponential scale length of the continuum at Mg II ([O II]) wavelenghts in kpc. Δ_{Mg II−[O II]}: spatial offset between the Mg II and [O II] emission best-fit centroids in kpc. Δ_{Mg II([O II])−cont}: spatial offset between the Mg II ([O II]) emission and the continuum best-fit centroids in kpc. The significant offsets are marked with o (see Sect. 3.5).

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