Characterisation of the X-ray point source variability in the eROSITA south ecliptic pole field

Open Access

Table B.1

First ten likely extragalactic variable sources with spectroscopic redshifts from the table listing the properties of the variable sources in the SEP field observed by eROSITA; https://projects.mpe.mpg.de/heg/erosita/SEP_var/.

Source name	X-ray coords	Opt coords	z	Spectype	QOP	D	N_b	R_S	Varclass	NEV_b seg	$\bar{{N E V}_{b}}$ $\[\overline{\mathrm{NEV}_{\mathrm{b}}}\]$ 20
eRASSt	83.68627	83.6868	0.0721	12	4	35	92,	0.209,	eR1:2,	${0.26}_{- 0.16}^{+ 0.28},$ $\[0.26_{-0.16}^{+0.28},\]$	${0.035}_{- 0.016}^{+ 0.084}$ $\[0.035_{-0.016}^{+0.084}\]$
J053444.7	-67.64919	-67.64855					82,	0.139,	eR2:2,	${0.41}_{- 0.27}^{+ 0.56},$ $\[0.41_{-0.27}^{+0.56},\]$
-673857							71	0.0537	eR3:0	${0.01}_{- 0.02}^{+ 0.13}$ $\[0.01_{-0.02}^{+0.13}\]$

eRASSt	84.19425	84.19306	1.63	12	4	37	158	0.0406,	eR1:0,	${0.01}_{- 0.01}^{+ 0.11},$ $\[0.01_{-0.01}^{+0.11},\]$	${0.05}_{- 0.02}^{+ 0.45}$ $\[0.05_{-0.02}^{+0.45}\]$
J053646.6	-65.1318	-65.13108					148	0.0431,	eR2:2,	${0.8}_{- 0.6}^{+ 1.8},$ $\[0.8_{-0.6}^{+1.8},\]$
-650754							100	0.0368	eR3:0	${0.01}_{- 0.02}^{+ 0.13}$ $\[0.01_{-0.02}^{+0.13}\]$

eRASSt	84.71114	84.71313	0.867	12	3	28	144	0.152	eR1:0,	${0.004}_{- 0.004}^{+ 0.011},$ $\[0.004_{-0.004}^{+0.011},\]$	${0.021}_{- 0.007}^{+ 0.031}$ $\[0.021_{-0.007}^{+0.031}\]$
J053850.7	-66.26976	-66.26932					134	0.0967	eR2:0,	${0.006}_{- 0.006}^{+ 0.020},$ $\[0.006_{-0.006}^{+0.020},\]$
-661611							120	0.0920	eR3:3	${0.52}_{- 0.32}^{+ 0.63},$ $\[0.52_{-0.32}^{+0.63},\]$
							59	0.105		${0.010}_{- 0.011}^{+ 0.058}$ $\[0.010_{-0.011}^{+0.058}\]$

eRASSt	85.24795	85.24687	0.218	7	3	28	75	0.00003,	eR3:2	${0.02}_{- 0.02}^{+ 0.38},$ $\[0.02_{-0.02}^{+0.38},\]$	${0.03}_{- 0.01}^{+ 0.40}$ $\[0.03_{-0.01}^{+0.40}\]$
J054059.5	-66.37407	-66.37182					71	0.0086		${0.03}_{- 0.03}^{+ 1.01}$ $\[0.03_{-0.03}^{+1.01}\]$
-662227

eRASSt	86.66722	86.66766	1.0	12	3	37	149	0.0235	eR1:2,	$4_{- 4}^{+ 18},$ $\[4_{-4}^{+18},\]$	${0.05}_{- 0.02}^{+ 1.16}$ $\[0.05_{-0.02}^{+1.16}\]$
J054640.1	-67.35346	-67.3533					131	0.0178,	eR2:0,	${0.01}_{- 0.02}^{+ 0.17},$ $\[0.01_{-0.02}^{+0.17},\]$
-672112							119	0.0156	eR3:0	${0.02}_{- 0.02}^{+ 0.45}$ $\[0.02_{-0.02}^{+0.45}\]$

eRASSt	86.86164	86.86065	0.369	12	3	37	59	0.0971,	eR1:0,	${0.09}_{- 0.10}^{+ 0.59},$ $\[0.09_{-0.10}^{+0.59},\]$	${0.037}_{- 0.013}^{+ 0.069}$ $\[0.037_{-0.013}^{+0.069}\]$
J054726.8	-66.89728	-66.89658					194	0.0781,	eR2:2,	${0.03}_{- 0.03}^{+ 0.18},$ $\[0.03_{-0.03}^{+0.18},\]$
-665350							188	0.121,	eR3:0	${0.16}_{- 0.10}^{+ 0.22},$ $\[0.16_{-0.10}^{+0.22},\]$
							168	0.0863		${0.10}_{- 0.09}^{+ 0.32}$ $\[0.10_{-0.09}^{+0.32}\]$

eRASSt	86.91589	86.91577	0.461	12	4	37	265	0.0758,	eR1:1,	${0.18}_{- 0.11}^{+ 0.30},$ $\[0.18_{-0.11}^{+0.30},\]$	${0.029}_{- 0.009}^{+ 0.050}$ $\[0.029_{-0.009}^{+0.050}\]$
J054739.8	-65.44537	-65.44514					283	0.101,	eR2:0,	${0.009}_{- 0.009}^{+ 0.040},$ $\[0.009_{-0.009}^{+0.040},\]$
-652643							173	0.0568	eR3:0	${0.02}_{- 0.02}^{+ 0.16}$ $\[0.02_{-0.02}^{+0.16}\]$

eRASSt	87.13089	87.13078	0.116	12	3	37	141	0.119,	eR1:0,	${0.02}_{- 0.02}^{+ 0.10},$ $\[0.02_{-0.02}^{+0.10},\]$	${0.021}_{- 0.006}^{+ 0.029}$ $\[0.021_{-0.006}^{+0.029}\]$
J054831.4	-66.71631	-66.71595					231	0.108,	eR2:0,	${0.06}_{- 0.05}^{+ 0.18},$ $\[0.06_{-0.05}^{+0.18},\]$
-664259							219	0.120,	eR3:2	${0.03}_{- 0.03}^{+ 0.11},$ $\[0.03_{-0.03}^{+0.11},\]$
							195	0.182		${0.10}_{- 0.05}^{+ 0.11}$ $\[0.10_{-0.05}^{+0.11}\]$

eRASSt	87.30671	87.30614	0.317	12	4	37	158	0.526,	eR1:0,	${0.022}_{- 0.014}^{+ 0.028},$ $\[0.022_{-0.014}^{+0.028},\]$	${0.0095}_{- 0.0027}^{+ 0.0075}$ $\[0.0095_{-0.0027}^{+0.0075}\]$
J054913.6	-64.49182	-64.49142					187	0.508,	eR2:0,	${0.007}_{- 0.007}^{+ 0.017},$ $\[0.007_{-0.007}^{+0.017},\]$
-642931							141	0.605,	eR3:2	${0.044}_{- 0.021}^{+ 0.032},$ $\[0.044_{-0.021}^{+0.032},\]$
							28	0.588,		${0.006}_{- 0.006}^{+ 0.023}$ $\[0.006_{-0.006}^{+0.023}\]$

eRASSt	87.88347	87.88299	0.562	12	3	28	410,	0.0137,	eR1:0,	${0.01}_{- 0.02}^{+ 0.20},$ $\[0.01_{-0.02}^{+0.20},\]$	${0.04}_{- 0.01}^{+ 0.28}$ $\[0.04_{-0.01}^{+0.28}\]$
J055132.0	-66.30252	-66.30244					361,	0.0121,	eR2:2,	${0.1}_{- 0.1}^{+ 18.6},$ $\[0.1_{-0.1}^{+18.6},\]$
-661809							285,	0.0215,	eR3:0	${0.011}_{- 0.012}^{+ 0.093},$ $\[0.011_{-0.012}^{+0.093},\]$
							120	0.0131		${0.06}_{- 0.07}^{+ 6.74}$ $\[0.06_{-0.07}^{+6.74}\]$

Notes. Spectype refers to the classification of the observed optical spectrum, QOP describes the quality of the spectrum, and the reliability of the classification. Varclass describes to what extent each source was classified as variable or not in the different eRASSs. The column ‘NEV_b seg’ lists the value of NEV_b in all segments, and ‘ $\bar{{N E V}_{b}}$ $\[\overline{\mathrm{NEV}_{\mathrm{b}}}\]$ 20’ describes the geometric mean NEV_b of all 20 bin segments. For a more detailed description of these parameters, and their meaning, see the web page.

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