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Table A.1

Identification numbers and properties of the 57 RR Lyrae stars in the Gold sample.

Gaia DR3 source_id name RA (deg) Dec (deg) P (days) Type G (mag) AmpG (mag) #epochG [Fe/H] (dex)
1645480968432583168 V2 228.1678 67.5216 0.648 ab 19.595 0.684 37 −2.22
1645474504506279040 V4 227.8815 67.4263 0.716 ab 19.663 0.498 38 −1.75
1645486637789393024 V5 227.4816 67.4752 0.767 ab 19.568 0.382 40
1645465983291163264 V8 227.2937 67.4517 0.554 ab 19.613 1.074 39 −2.07
1645485156025159552 V10 227.5857 67.4051 0.618 ab 19.620 0.927 37 −1.88
1645472619016137600 V15 227.8719 67.3682 0.645 ab 19.599 0.968 41 −2.04
1645472584656396672 V17 227.8310 67.3619 0.719 ab 19.623 0.676 41 −2.11
1645469831581809664 V18 228.1098 67.3186 0.600 ab 19.584 1.172 36 −1.83
1645449872869325568 V19 227.5394 67.3577 0.342 c 19.685 0.500 39 −2.01
1645461550884867712 V20 227.4499 67.3582 0.628 ab 19.663 1.006 41 −1.71
1645461482165377408 V22 227.4583 67.3342 0.306 c 19.827 0.523 37 −1.73
1645449593695899264 V23 227.5805 67.3236 0.663 ab 19.463 0.561 38
1645449456256933376 V24 227.5419 67.3107 0.301 c 19.795 0.519 39
1645460623171913344 V25 227.2222 67.3389 0.647 ab 19.615 0.627 38
1645460558747945216 V26 227.2602 67.3217 0.628 ab 19.672 0.863 38 −1.61
1645448494184240384 V28 227.6738 67.2782 0.308 c 19.657 0.581 39 −2.13
1645448562903707776 V30 227.5958 67.2691 0.334 c 19.695 0.497 39 −1.78
1645449078299793920 V31 227.4973 67.2879 0.358 c 19.753 0.447 40
1645459523660256256 V32 227.3192 67.2939 0.627 ab 19.758 0.672 38 −1.69
1645463268871746816 V33 227.0436 67.3164 0.621 ab 19.624 0.914 33 −1.57
1645463410606222976 V34 226.9517 67.3148 0.642 ab 19.675 0.688 37
1645460180790815232 V35 227.0330 67.2835 0.659 ab 19.691 0.630 31 −1.83
1645454202196333568 V36 226.9859 67.2503 0.707 ab 19.579 0.792 34 −2.22
1645448150586830208 V37 227.5258 67.2482 0.679 ab 19.580 0.891 39 −2.06
1645459420581026304 V38 227.3385 67.2725 0.357 c 19.793 0.415 39
1645447429032321024 V39 227.4277 67.2474 0.578 ab 19.630 0.848 40 −1.78
1645447502047359488 V40 227.3263 67.2362 0.327 c 19.767 0.450 36
1645448081867341312 V41 227.4650 67.2319 0.490 ab 19.775 0.986 35
1645444925066984704 V42 227.5951 67.2095 0.647 ab 19.631 0.739 43
1645446226441431424 V43 227.4935 67.1874 0.728 ab 19.561 0.759 39 −2.11
1645446127657821312 V44 227.4849 67.1677 0.382 c 19.658 0.393 42
1645447188514116096 V45 227.3569 67.2038 0.507 ab 19.827 1.122 34 −1.30
1645458836465430272 V48 227.1821 67.2185 0.687 ab 19.612 0.686 36 −2.04
1645458772041537408 V49 227.1874 67.2122 0.415 c** 19.661 0.364 34
1645453167108584448 V50 227.0648 67.2089 0.688 ab 19.646 0.771 31 −2.00
1645441970129471488 V51 227.5822 67.0873 0.634 ab 19.634 0.680 38 −2.36
1645445543542253952 V52 227.3502 67.1010 0.597 ab 19.576 1.077 36 −1.96
1645439732450810752 V53 227.2849 67.1086 0.731 ab 19.490 0.687 36 −2.44
1645439874185418368 V54 227.2062 67.1013 0.673 ab 19.592 0.746 35 −2.17
1645452823511172224 V55 227.1370 67.1719 0.663 ab 19.635 0.859 35 −2.08
1645440969401422080 V58 227.1144 67.1566 0.351 c 19.682 0.479 36
1645452514273508992 V60 226.9606 67.1575 0.544 ab 19.670 0.915 31
1645454648872907008 V63 226.6047 67.1479 0.374 c 19.749 0.374 36
1645452411194275200 V64 226.9480 67.1312 0.644 ab 19.661 0.880 35
1645435574922418688 V66 227.4034 67.0250 0.626 ab 19.602 0.640 41 −2.26
1645438804737835264 V68 227.0013 67.0612 0.422 c 19.572 0.514 37
1645437778242088832 V69 227.0621 67.0271 0.314 c 19.749 0.601 37
1645451346042353920 V70 226.7000 67.0959 0.585 ab 19.682 0.769 33 −2.21
1645437842665115648 V73 226.8859 66.9624 0.403 c 19.413 0.591 42
1645356856761796096 V75 226.4976 67.0122 0.497 ab 19.728 1.079 37 −1.56
1645457947407902464 V77 226.7213 67.2819 0.667 ab 19.621 0.975 35 −2.05
1645462444238074880 V78 227.2943 67.3813 0.372 c 19.652 0.489 36
1645442485525547136 V81 227.4783 67.1125 0.386 c** 19.689 0.462 39
1645452312410710144 V83 227.0560 67.1518 0.406 c 19.640 0.419 34
1645456190766318336 V99 226.6550 67.2373 0.609 ab 19.614 0.773 34 −1.66
1693505918347240192 V100 227.1773 67.5580 0.314 c 19.708 0.478 35
1645490309985954304 V101 227.5333 67.5726 0.646 ab 19.637 0.867 41 −2.10

Notes. Sources are ordered by increasing ID number, adopting the nomenclature from N88. Column (1): Gaia DR3 sourceid, column (2): N88 sourceid, columns (3) and (4): Gaia DR3 coordinates* (RA and Dec). Pulsation period (column 5), pulsation mode (column 6), intensity–averaged G magnitude (column 7), G-band peak-to-peak amplitude (column 8) and number of epochs in the G-band (column 9) are from the Gaia DR3 vari_rrlyrae table. Photometric [Fe/H] values (column 10) are from (Muraveva et al. 2024, see Section 6).

(*)Right ascension and declination are at J2016.0, the reference epoch (ref_epoch) for both Gaia EDR3 and the full Gaia DR3.

(**)RRd candidate (see text for details).

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