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Table A.1.

List of HLX candidates obtained in this study.

Name RA Dec POSERR FX D Gal. type Sep. LX MBH M*, Bell Sub-sample
deg deg arcsec erg cm−2 s−1 Mpc kpc erg s−1 M⊙ M⊙
2CXO J001143.2-285548 2.9303 -28.9301 1.1 1.4 × 10−14 267.9 E 11.2 1.2 × 1041 2.5 × 104 1.8 × 107 robust
2CXO J002234.1+001609 5.6424 0.2693 0.7 3.7 × 10−15 485.3 S00 15.6 1.0 × 1041 2.3 × 104 robust
2CXO J005151.7+474019 12.9658 47.6720 0.8 1.8 × 10−14 682.5 16.7 10.0 × 1041 1.9 × 105 weak
2CXO J010739.2+541226 16.9134 54.2074 0.4 9.9 × 10−15 497.8 14.3 2.9 × 1041 4.1 × 104 robust
2CXO J011028.2-460422 17.6178 -46.0729 0.4 4.9 × 10−13 90.9 S0+ 3.2 4.9 × 1041 robust
2CXO J011751.9-265850 19.4664 -26.9808 1.3 8.5 × 10−15 463.4 20.6 2.2 × 1041 7.1 × 104 weak
2CXO J011854.9-010551 19.7288 -1.0976 0.5 2.0 × 10−14 557.2 E 13.4 7.5 × 1041 1.2 × 105 robust
2CXO J023659.5-511548 39.2481 -51.2636 2.8 4.7 × 10−14 343.6 24.6 6.6 × 1041 1.1 × 105 5.8 × 107 robust
2CXO J024106.1-081711 40.2757 -8.2865 0.6 3.3 × 10−15 636.8 24.6 1.6 × 1041 2.3 × 104 robust
2CXO J024228.5-000202 40.6188 -0.0340 0.4 7.1 × 10−15 691.8 E 27.3 4.1 × 1041 8.8 × 104 robust
2CXO J025843.0-523930 44.6794 -52.6584 0.5 4.7 × 10−15 428.3 9.5 1.0 × 1041 robust
2CXO J025921.5+132913 44.8398 13.4871 0.6 8.0 × 10−15 487.5 8.2 2.3 × 1041 3.0 × 104 galaxy pair
2CXO J031049.4-265431 47.7062 -26.9088 0.8 2.0 × 10−14 597.0 14.8 8.6 × 1041 1.6 × 105 robust
2CXO J034115.1+152335 55.3129 15.3932 0.4 2.7 × 10−14 184.4 3.8 1.1 × 1041 1.5 × 104 3.5 × 107 weak
2CXO J034231.8-533841 55.6325 -53.6449 0.4 2.3 × 10−14 270.4 E 12.2 2.0 × 1041 3.3 × 104 robust
2CXO J041338.6+102803 63.4112 10.4678 0.5 6.0 × 10−15 405.5 10.7 1.2 × 1041 1.7 × 104 robust
2CXO J043338.4-131612 68.4101 -13.2702 0.4 5.2 × 10−14 141.9 S0− 19.8 1.2 × 1041 2.0 × 104 robust
2CXO J044921.6-485545 72.3403 -48.9294 0.9 6.7 × 10−15 355.9 6.7 1.0 × 1041 1.3 × 104 robust
2CXO J055107.0-570640 87.7793 -57.1111 0.5 1.5 × 10−14 267.9 15.3 1.3 × 1041 2.9 × 104 robust
2CXO J061620.8-215616 94.0867 -21.9379 0.5 1.8 × 10−14 1.0 × 103 13.2 2.3 × 1042 2.1 × 105 robust
2CXO J062648.6-543208 96.7028 -54.5357 0.4 7.5 × 10−14 225.9 E 27.9 4.6 × 1041 4.3 × 104 robust
2CXO J071051.5-561009 107.7150 -56.1694 0.8 1.9 × 10−14 562.3 14.3 7.2 × 1041 1.3 × 105 robust
2CXO J071644.9+372828 109.1875 37.4746 1.3 2.5 × 10−14 317.9 14.0 3.0 × 1041 4.0 × 104 robust
2CXO J074735.8+554113 116.8994 55.6870 0.5 4.0 × 10−14 152.1 4.2 1.1 × 1041 1.6 × 104 2.5 × 109 weak
2CXO J081654.4-073931 124.2271 -7.6588 1.4 1.3 × 10−14 311.2 13.7 1.5 × 1041 2.8 × 104 robust
2CXO J082215.9+210535 125.5665 21.0933 0.5 1.2 × 10−13 92.3 S0− 1.9 1.2 × 1041 2.2 × 104 3.0 × 1010 robust
2CXO J084128.8+322447 130.3700 32.4133 0.4 1.2 × 10−14 295.1 S00 11.4 1.3 × 1041 2.4 × 104 robust
2CXO J084135.0+010156 130.3962 1.0323 0.4 6.6 × 10−14 503.5 7.0 2.0 × 1042 3.8 × 105 galaxy pair
2CXO J091449.0+085321 138.7045 8.8892 0.4 6.8 × 10−13 648.6 E 7.9 3.4 × 1043 1.7 × 107 galaxy pair
2CXO J101239.8-010628 153.1662 -1.1078 0.5 9.5 × 10−15 438.5 Sa 9.4 2.2 × 1041 4.1 × 104 2.6 × 104 robust
2CXO J103619.8-273939 159.0827 -27.6610 0.9 8.6 × 10−15 430.5 S0+ 27.1 1.9 × 1041 2.9 × 104 robust
2CXO J103844.2+485220 159.6845 48.8724 0.4 9.2 × 10−15 539.5 13.9 3.2 × 1041 5.4 × 104 robust
2CXO J104142.2+400035 160.4262 40.0098 0.9 1.5 × 10−14 642.7 24.7 7.6 × 1041 galaxy pair
2CXO J105210.4+552243 163.0435 55.3786 0.5 6.9 × 10−15 669.9 Sb 12.2 3.7 × 1041 5.7 × 104 robust
2CXO J111610.0+013035 169.0418 1.5098 0.5 1.7 × 10−14 500.9 Sbc 11.9 5.2 × 1041 1.1 × 105 galaxy pair
2CXO J112002.6+132830 170.0112 13.4752 2.0 4.2 × 10−15 586.1 Sc 20.6 1.7 × 1041 2.2 × 104 robust
2CXO J112110.9+232331 170.2958 23.3922 0.6 4.2 × 10−15 513.2 E 13.1 1.3 × 1041 2.5 × 104 weak
2CXO J112255.5+010601 170.7313 1.1004 0.4 2.4 × 10−14 342.0 E 17.5 3.4 × 1041 8.1 × 104 3.3 × 108 weak
2CXO J121756.3+280941 184.4849 28.1615 0.5 1.2 × 10−14 613.8 E 17.1 5.3 × 1041 1.1 × 105 robust
2CXO J122155.1+271022 185.4796 27.1728 0.4 1.2 × 10−14 363.1 E 6.4 1.9 × 1041 2.0 × 104 robust
2CXO J123307.6+091942 188.2820 9.3285 0.6 3.3 × 10−14 309.0 Sd 6.1 3.7 × 1041 8.0 × 104 robust
2CXO J123605.6+163213 189.0235 16.5370 1.4 9.7 × 10−15 318.0 E 12.5 1.2 × 1041 1.3 × 104 weak
2CXO J124208.4+331854 190.5351 33.3151 0.4 8.9 × 10−14 701.9 E 15.2 5.3 × 1042 1.3 × 106 galaxy pair
2CXO J130155.9+291815 195.4833 29.3044 1.2 1.8 × 10−14 776.2 30.3 1.3 × 1042 robust
2CXO J131133.3-011656 197.8891 -1.2824 0.4 6.6 × 10−15 895.4 22.3 6.3 × 1041 1.2 × 105 weak
2CXO J131619.4+620610 199.0809 62.1029 0.9 1.4 × 10−14 610.9 E 14.4 6.1 × 1041 9.3 × 104 robust
2CXO J132519.7-313607 201.3324 -31.6021 0.4 5.5 × 10−14 214.8 4.0 3.0 × 1041 8.1 × 104 robust
2CXO J133338.8-314045 203.4120 -31.6792 0.5 2.3 × 10−14 214.8 S0+ 55.0 1.3 × 1041 2.2 × 103 robust
2CXO J134736.4+173404 206.9018 17.5680 0.4 3.2 × 10−13 199.2 Sbc 8.2 1.5 × 1042 4.5 × 105 galaxy pair
2CXO J140155.7-113809 210.4823 -11.6360 0.4 3.2 × 10−14 230.3 5.4 2.0 × 1041 3.1 × 104 robust
2CXO J142010.7+533348 215.0448 53.5635 0.6 1.2 × 10−14 293.8 Irr 8.3 1.2 × 1041 1.6 × 104 2.1 × 106 robust
2CXO J145409.9+183700 223.5415 18.6169 1.6 4.0 × 10−15 520.0 Sc 24.2 1.3 × 1041 2.3 × 104 robust
2CXO J150930.4+333330 227.3769 33.5585 0.6 3.1 × 10−14 1.0 × 103 24.3 4.0 × 1042 9.3 × 105 5.5 × 109 weak
2CXO J150940.1+333033 227.4172 33.5094 0.6 7.6 × 10−15 549.5 E 13.4 2.8 × 1041 6.9 × 104 weak
2CXO J152435.6+295302 231.1486 29.8841 0.7 3.2 × 10−15 557.2 14.7 1.2 × 1041 4.5 × 104 robust
2CXO J153143.2+240421 232.9304 24.0725 0.4 5.7 × 10−14 438.5 Sab 5.9 1.3 × 1042 6.4 × 104 galaxy pair
2CXO J160211.7+155437 240.5491 15.9103 0.4 3.9 × 10−14 159.2 S00 12.5 1.2 × 1041 2.8 × 104 robust
2CXO J161249.8+540832 243.2076 54.1423 0.5 3.8 × 10−14 711.2 E 14.8 2.3 × 1042 4.6 × 105 robust
2CXO J162953.8+394601 247.4743 39.7670 6.2 4.1 × 10−14 143.2 Sbc 21.2 1.0 × 1041 1.7 × 104 robust
2CXO J163121.5-750652 247.8397 -75.1145 0.4 1.8 × 10−14 498.9 57.1 5.3 × 1041 8.5 × 104 robust
2CXO J163249.0+053852 248.2045 5.6479 0.5 7.1 × 10−15 376.4 13.6 1.2 × 1041 1.1 × 104 weak
2CXO J164237.1+272634 250.6548 27.4428 0.4 3.1 × 10−14 469.9 E 38.7 8.3 × 1041 1.4 × 105 robust
2CXO J170932.2+342542 257.3845 34.4286 0.5 1.7 × 10−14 353.2 Sc 9.5 2.6 × 1041 4.7 × 104 robust
2CXO J171215.5+640212 258.0646 64.0368 0.5 1.1 × 10−14 335.1 E 7.1 1.5 × 1041 2.5 × 104 robust

Notes. Column (1): name of the source. (2–4): source coordinates and position error. (5): broad-band mean X-ray flux. (6): galaxy distance. (7): galaxy morphology. (8): physical separation of the source to the galaxy centre. (9): broad-band mean X-ray luminosity. (10): black hole mass using the r-band luminosity and g − r colour (Bell et al. 2003). (11): galaxy mass given in GLADE+ (Dálya et al. 2022). (12): category assigned to the HLX in our study.

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