Open Access

Table A.1.

eRASS1 X-ray sources identified with very red giant stars. Column 1 provides the Gaia DR3 identification number; columns 2 and 3 right show the ascension and declination of the optical counter part; columns 4 and 5 give the Gaia apparent magnitude and BP-RP color; column 6 lists the distance in parsecs) as computed from the Gaia parallax; column 7 gives the matching distance between the eROSITA and Gaia positions (in arcseconds); column 8 gives the probability that the source is coronal; column 9 provides a flag indicating whether we consider the X-ray source to be caused by optical contamination (Y) or to be genuine (N); and the asterisk in column 10 indicates whether the object is considered a “good” candidate (see text for details).

DR3 number RA Dec g BP-RP Distance Match distance Coronal Contamination cand
(deg) (deg) (pc) (arcsec) probability flag
4689639301195027840 6.0632 -72.0768 10.91 2.63 4393.7 4.5 0.1 N
4710091076458784768 13.4085 -62.8713 4.36 2.87 207.2 6.9 0.7 Y
4644856055150677632 32.9536 -71.4841 6.78 4.31 645.9 5.5 0.96 N *
4696456475143514368 36.36 -66.494 4.98 2.95 224.7 2.2 0.95 Y
4693488382160219008 36.945 -69.5238 4.93 3.84 240.0 2.4 0.96 Y
4738343783649552896 36.9477 -57.6131 9.87 2.67 2923.9 4.1 0.86 N
5158832592439126272 41.983 -12.4609 4.87 3.37 328.2 6.1 0.93 Y
4748477123328077696 43.4708 -49.8895 6.12 5.6 231.3 1.6 0.98 N *
5159194331764625920 44.7437 -13.3438 7.47 2.64 769.7 1.3 0.93 N *
4727337637895749888 48.1383 -57.3215 4.54 2.52 460.5 2.2 0.98 Y
5100253911446411264 50.9019 -19.8836 8.22 3.86 1291.7 3.3 0.97 N *
4723045075781077760 52.1955 -59.9767 8.22 2.64 1275.2 7.7 0.75 N *
4732182395365306240 54.4358 -55.3963 5.96 4.27 418.8 5.1 0.7 Y
4667961536094250752 56.7572 -66.7707 8.82 2.75 1629.6 9.8 0.11 N
4829019511158220928 57.3994 -52.0798 5.49 3.65 391.3 1.2 0.96 Y
4616109220563904768 62.3983 -81.8548 8.09 3.75 324.9 0.5 0.98 N *
4675293354507076608 65.4269 -63.6584 8.01 3.82 910.3 11.2 0.0 N
4869021668323745792 66.3249 -36.2088 8.43 3.01 1024.1 10.5 0.17 N
4663790332579168000 75.6147 -65.1508 9.96 2.65 2145.7 9.8 0.61 N
3228743421412376704 76.3489 1.1776 4.58 2.97 490.2 2.6 0.99 Y
2989528414633822464 77.8454 -11.8488 3.63 3.68 164.5 0.5 0.99 Y
4772353701224784640 81.9385 -51.1776 8.46 2.96 1180.4 5.3 0.6 N *
4660742383288287232 83.1331 -65.8255 7.71 3.73 698.7 8.3 0.31 N
4650354712809914624 83.6866 -73.7411 4.63 2.63 331.4 2.1 0.97 Y
4620697620025724544 88.5976 -84.0563 7.86 3.01 792.9 1.5 0.93 N *
5494400036544339072 90.539 -60.0968 5.14 2.73 259.2 5.5 0.9 Y
5571300189028395008 91.0939 -43.2978 9.61 4.68 2788.9 1.7 0.93 N
2913152694837288192 91.4398 -24.1956 4.46 3.86 256.6 1.2 0.94 Y
5278871052851005184 96.7267 -70.2638 11.81 2.58 5217.8 11.3 0.0 N
5283399421552134784 97.7546 -66.8706 5.23 3.49 367.1 2.8 0.96 Y
5265304900428370560 99.7651 -73.1979 10.8 3.05 3082.1 6.1 0.57 N
5262392225406506880 102.1676 -73.2597 9.55 2.61 1867.6 8.2 0.0 N
893132234387415808 110.6175 32.4163 9.27 3.08 1196.1 4.6 0.88 N *
5209380199986781184 127.6213 -77.784 9.28 2.5 1776.7 3.4 0.77 N
5193680960648176768 128.1013 -83.5025 8.53 3.79 1022.7 3.7 0.91 N *
5761301055347596800 130.4596 -5.6108 6.66 2.63 527.1 3.2 0.71 N *
5209126861340475776 132.5494 -78.7399 11.25 2.53 4969.1 8.0 0.97 N
612253364778494592 134.7945 18.1346 5.17 2.63 221.8 9.0 0.84 Y
699870869414974336 137.6616 30.963 3.37 3.95 150.4 1.3 1.0 Y
3842342137447011200 140.1529 0.1816 5.34 2.78 330.2 5.2 0.84 Y
645414291872801536 142.7756 25.0471 6.59 2.76 768.2 1.0 0.98 N *
5195956296883496832 143.7215 -80.1936 8.25 2.58 1041.0 4.7 0.78 N *
794754943320201600 146.3929 34.5119 6.98 6.31 290.2 3.6 0.99 N *
3827758180856268032 147.0311 -0.862 9.65 3.87 1731.9 5.0 0.79 N
3550624862030637568 162.9052 -21.2501 5.92 3.54 433.0 6.2 0.84 Y
3864344017954021120 164.006 6.1853 3.83 3.35 114.3 2.2 0.98 Y
3553091380145741440 165.1409 -18.3249 5.05 4.99 212.6 1.0 0.94 Y
762126970124609408 167.3293 36.3093 4.43 2.78 131.6 4.0 0.98 Y
3910931906171050496 174.615 8.1343 3.91 2.78 179.7 2.1 0.99 Y
3491583497096278144 176.5414 -24.8736 6.24 2.85 305.0 2.2 0.96 N *
3463822649562256256 177.1634 -35.987 4.16 4.05 212.5 1.5 0.99 Y
3490322803937287680 177.1877 -26.7498 3.75 2.68 143.3 0.6 1.0 Y
3462933174719143424 183.3037 -34.1252 4.43 3.48 437.3 0.9 0.98 Y
3707747654915318144 187.5874 4.4163 4.79 4.56 222.3 0.2 1.0 Y
3525277171936343680 192.4459 -15.0789 5.49 3.15 425.8 5.3 0.93 Y
3944674165681089408 196.5943 22.616 4.05 2.96 183.0 2.1 0.99 Y
6186564871338685056 197.4043 -27.4571 9.7 2.91 1871.0 5.6 0.77 N
3684575344281793920 198.5181 -2.807 4.07 4.7 180.1 0.3 1.0 Y
6195030801635544704 202.428 -23.2813 3.15 4.51 148.5 1.6 0.99 Y
3657349787109936896 208.0057 -3.4802 8.41 2.67 852.5 11.6 0.17 N
6173329362681684736 209.43 -31.0698 8.1 5.3 772.1 3.5 0.88 N *
3674236602085548928 212.4996 7.3424 8.05 2.79 1185.7 4.0 0.96 N *
6119285205089348608 214.9348 -36.8583 4.87 3.9 175.0 3.4 1.0 Y
6323351986214357888 218.8267 -13.4875 9.33 3.49 1895.6 8.5 0.5 N
6216707467220360448 219.949 -32.0345 9.38 3.12 1722.9 2.3 0.98 N
6201910274096330368 222.1584 -36.6349 4.12 3.29 167.9 0.6 0.97 Y
6313070693500197760 224.444 -12.4377 5.07 3.9 338.5 5.2 0.9 Y
6207812177634139008 231.0517 -31.7852 9.03 3.18 2097.5 9.8 0.27 N
6253880512249119104 235.1531 -19.8685 10.74 3.64 1956.2 3.1 0.96 N
4395839245812332416 236.1152 -8.4853 9.74 3.14 2928.5 7.1 0.8 N
5774447400486874112 262.8643 -80.8593 4.7 2.61 241.1 10.8 0.24 Y
6738529604088911104 290.9611 -39.9014 9.71 3.16 1205.3 6.1 0.6 N *
6713213967334901376 290.9626 -42.9361 7.49 2.51 807.0 7.0 0.8 N *
6447070889998485376 298.8083 -59.1958 4.38 5.12 174.1 3.2 0.99 Y
6444391655040244992 300.4366 -59.376 3.14 3.12 169.2 1.6 0.98 Y
6443377905319179264 302.9414 -59.9369 5.04 4.9 300.6 3.6 0.96 Y
6474933025745450880 309.4673 -50.8643 11.35 2.91 4720.0 11.9 0.07 N
6342796540114659200 320.4733 -86.4653 7.55 2.56 1045.1 5.6 0.76 N *
6396597121531742336 322.1882 -69.5056 3.76 3.2 127.6 2.6 0.94 Y
6459876523969640704 322.7516 -56.8847 7.01 2.64 566.3 11.1 0.26 N
6351709524967494528 335.0085 -80.4399 3.32 2.94 89.9 0.5 0.99 Y
6518817665843312000 335.6844 -45.948 3.59 4.27 161.7 1.2 0.98 Y
6493430320313329920 344.2749 -57.4014 4.9 3.9 230.2 4.5 0.96 Y

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