J/ApJS/272/40ivo://CDS.VizieR/J/ApJS/272/40doi:10.26093/cds/vizier.22720040CDSZhang J.Xiang M.Yu J.Ge J.Xie J.-W.Zhang H.Li Y.Wu Y.,Li C.-Q.Bi S.Yan H.-L.Shi J.-R.2025-02-13T20:14:03Z2024-11-15T12:35:56ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frmetallicityapparent-magnitudevisible-astronomysurveysAccurately characterizing the intrinsic stellar photometric noise induced by stellar astrophysics, such as stellar activity, granulation, and oscillations, is of crucial importance for detecting transiting exoplanets. In this study, we investigate the relation between the intrinsic stellar photometric noise, quantified by the Kepler combined differential photometric precision (CDPP) metric, and the level of stellar chromospheric activity, indicated by the S-index of CaII H K lines derived from LAMOST spectra. Our results reveal a clear positive correlation between the S-index and robust rms values of CDPP, with the correlation becoming more significant at higher activity levels and on longer timescales. We have therefore built an empirical relation between the robust rms values of CDPP and the S-index as well as Teff, logg, [Fe/H], and the apparent magnitude, with the XGBoost regression algorithm, using the LAMOST-Kepler common star sample as the training set. This method achieves a precision of ~20ppm for inferring the intrinsic noise from the S-index and other stellar labels on a 6 hr integration duration. We have applied this empirical relation to the full LAMOST DR7 spectra database and obtained the intrinsic noise predictions for 1,358,275 stars. The resultant catalog is publicly available and expected to be valuable for optimizing target selection for future exoplanet-hunting space missions, such as the Earth 2.0 mission.2024ApJS..272...40Zhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/272/40CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toIII/159 : Ca II H and K Measurements Made at MWO (Duncan+ 1991)V/133 : Kepler Input Catalog (Kepler Mission Team, 2009)V/156 : LAMOST DR7 catalogs (Luo+, 2019)I/355 : Gaia DR3 Part 1. Main source (Gaia Collaboration, 2022)J/ApJS/152/261 : Chromospheric Ca II emission in nearby stars (Wright+, 2004)J/ApJ/725/875 : Chromospheric activity for CPS stars (Isaacson+, 2010)J/A+A/523/A48 : Gaia photometry (Jordi+, 2010)J/A+A/531/A8 : Activity indices & velocities for 890 stars (Jenkins+, 2011)J/PASP/124/1279 : Q3 Kepler's combined photometry (Christiansen+, 2012)J/ApJS/199/24 : The first three quarters of Kepler mission (Tenenbaum+, 2012)J/ApJS/220/19 : LAMOST obs. in the Kepler field. I. (De Cat+, 2015)J/AJ/150/133 : Stellar noise for Kepler solar-type dwarfs (Gilliland+, 2015)J/MNRAS/448/822 : LAMOST candidate members of star clusters (Xiang+, 2015)J/AJ/151/68 : Kepler Mission. VII. Eclipsing binaries in DR3 (Kirk+, 2016)J/AJ/152/158 : Final Kepler transiting planet search (DR25) (Twicken+, 2016)J/ApJ/835/25 : Calibrated solar S-index time series (Egeland+, 2017)J/ApJS/229/30 : Revised properties of Q1-17 Kepler targets (Mathur+, 2017)J/ApJS/235/38 : Kepler planetary cand. VIII. (Thompson+, 2018)J/ApJS/245/34 : Abundances for 6 million stars from LAMOST DR5 (Xiang+, 2019)J/ApJS/247/9 : FGK stars magnetic activity in LAMOST-Kepler (Zhang+, 2020)J/AJ/162/100 : PAST. II. LAMOST-Gaia-Kepler catalog of stars (Chen+, 2021)J/A+A/646/A77 : Chromospheric activity; AMBRE-HARPS (Gomes da Silva+, 2021)J/A+A/681/A107 : Mercator Lib. of HR Stellar Spectroscopy (Royer+, 2024)J/ApJS/271/19 : FGK dwarfs from LAMOST DR7 & Gaia DR3 and Kepler (Ye+, 2024)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/272/40https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/272/40http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/272/40https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/272/40https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/272/40http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/272/40GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/272/40/table2 (Deduced photometric noise of the 1,358,275 stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/272/40/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/272/40/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/272/40/table2?GETtext/xml+votable180.050000true99.217927227.61288860.0055555555555555562/1 6 9-10 18-20 22 24 26 33-35 40 58 85 93 109 3/0 9-10 12 15-16 18 21 23 28-29 33 35 48-49 66-68 71 84-86 92 94 101-103 108-110 112-113 128-130 144-146 150 153-154 157 164 166-168 171 173 209 212 283 286-287 295 297 299 303-304 306 310 317-319 346-348 350-351 357 363-364 366-367 370-371 376-378 380-381 383 406-407 413 415 421-423 425-426 428 430-431 435 442 445 485 487 495-496 498-499 504-505 4/4-6 8-9 11 13-15 44-45 47 53-55 57-59 68 77-81 83 89-91 120-122 124 126 128-129 131 137-139 176-177 179 181-183 185-188 200-202 256-258 260-262 276-277 279-280 282-283 348-349 351 373-375 400-402 444 456-458 464 480 524 527 588 590-592 594-595 597 599 604-606 610-611 620-621 623-625 633-634 660 662-663 676-678 680-681 689 691 696 700 705-710 712-714 736 773 786 791-792 795 800 802 814 821 825 830 833 841 844-845 853 856-857 859 862 866-867 872-873 876 878 881 886 889 901 904-905 907 911 916 920 922-923 926 944-946 954-955 992 1109-1111 1115 1117 1127 1131 1137-1140 1142 1167 1175 1178-1179 1186 1192-1193 1200-1201 1203-1204 1206-1208 1210 1220 1222 1228-1229 1231 1236-1238 1244 1246-1248 1251 1254 1258-1261 1263 1265 1267 1341-1343 1359 1379-1382 1397-1399 1422-1423 1425 1432 1434-1435 1437 1443 1445-1447 1449-1451 1462-1463 1472-1473 1475 1477-1479 1516 1518 1529-1531 1591 1597 1599 1613-1615 1619 1623 1634-1637 1639-1640 1642-1643 1646 1650-1651 1657-1659 1671 1679 1681-1683 1696 1699 1708-1709 1711 1717-1719 1728-1730 1733-1738 1760-1762 1765-1767 1774-1775 1777 1779 1785-1790 1900 1902-1903 1933 1944-1945 1956-1958 1961-1962 1964 1966-1969 1971-1973 1976 1978-1979 1991 2010 2025 2028-2029 2031-2034 2037 2040-2041 2045 2047 2300-2301 2555 2558-2559 2815 5/28-29 31 40-41 43 48-49 51 129 132-133 135-136 138-139 141-143 185 187 208-210 225-227 277 279-280 285-287 305-307 328-329 331 353-355 492-493 500-501 520-521 523 545-547 712-714 720 722 738-739 756-757 812-814 816 832 834-835 837-841 844-846 848 850 860-862 869 871 880 896-898 900 906-907 928 1037-1039 1053-1055 1112-1114 1124-1126 1400-1402 1488 1490 1520-1522 1524 1612-1614 1780-1782 1784-1786 1836-1838 1840-1842 1844 1864 1928-1930 1947 1952 1968-1969 2023 2028-2029 2040 2100-2102 2104-2106 2356 2358-2359 2373-2375 2384-2386 2392 2394-2395 2428 2430-2434 2437-2439 2488-2489 2491 2506 2509 2511 2528 2530-2531 2540 2542 2544-2546 2644-2646 2716 2718 2728-2730 2732 2735 2752-2753 2755 2761 2763 2788-2789 2791 2793-2798 2805-2806 2817-2819 2844-2845 2860-2862 2864 2866-2867 2872 2880-2882 2884 2950 2952-2953 2956 2976 3004-3005 3048 3072-3073 3075-3076 3083-3084 3086-3087 3089 3091 3100-3101 3103 3108-3109 3112 3114 3125-3127 3132-3133 3136-3138 3140-3141 3143 3148 3150-3153 3156 3158 3162-3163 3172-3174 3176-3177 3184-3185 3188-3189 3191 3194 3197-3199 3214 3232 3236-3237 3239 3248 3250-3251 3262 3268-3269 3278-3280 3283 3289 3292-3293 3311-3312 3315 3324 3328-3329 3338 3341 3343 3360 3363 3368-3370 3372-3373 3384-3386 3388 3409-3411 3416-3418 3421 3423 3433 3435 3440 3442 3445 3447 3453 3455-3456 3458-3459 3462-3463 3473-3475 3480 3482 3500-3501 3516 3521 3523 3533 3535-3536 3538 3543 3548-3550 3564-3565 3568-3570 3576 3594-3595 3597-3599 3601 3608 3610 3613 3624-3625 3627 3635 3638 3641 3643 3648 3650 3653 3655 3658-3659 3661 3669-3673 3675-3678 3686-3687 3697-3699 3701-3703 3708-3710 3788-3789 3792 3794 3799 3805 3814-3815 3825-3828 3840-3842 3850 3857 3859-3860 3862 3872-3874 4402-4403 4408-4409 4411-4412 4414-4415 4419 4429 4431 4453 4455 4464-4466 4472-4473 4475-4478 4500-4501 4503 4507 4521 4523 4546-4547 4564 4566-4567 4572-4574 4667 4694 4697-4699 4706 4709-4711 4736 4738-4739 4749-4751 4778-4781 4808 4810-4811 4820 4822-4823 4836 4839 4845-4847 4884 4894-4895 4923 4933 4935 4940-4941 4943 4958 4980 4982-4983 4996 4998-5002 5009 5011-5014 5020 5022-5024 5026-5027 5029 5031 5048 5051 5056-5057 5059 5065-5067 5339 5342 5358 5361 5363 5405-5407 5423 5429 5431 5433-5435 5507 5510-5511 5513-5515 5532 5534-5535 5584-5585 5587 5671 5677 5682-5683 5685-5687 5697 5709 5732 5734 5745 5754 5757 5771 5777-5779 5795 5840-5842 5846-5847 5896-5898 5904 5906 6068 6079 6112-6113 6115 6385 6387 6393-6395 6428 6430-6431 6439 6443 6445-6447 6449-6451 6465-6467 6470 6473 6475 6480-6481 6483-6484 6486-6488 6490-6491 6529-6533 6535 6552-6553 6555 6564 6566-6567 6577-6582 6589-6592 6594-6595 6597 6599 6624-6625 6627 6707 6709-6711 6714-6715 6723 6789-6791 6793 6795 6840 6842 6865-6867 6924 6926-6928 6930-6931 6956-6957 6959 7052 7054-7056 7058-7059 7088-7090 7092 7094 7105 7107 7113 7137-7139 7164 7166-7167 7414-7415 7420-7421 7423 7484 7486-7487 7543 7548-7549 7551 7572-7573 7584 7586-7587 7592 7594-7595 7597-7599 7616 7618-7619 7625 7646-7647 7668-7669 7711 7731 7740-7742 7751 7754-7755 7757-7759 7785-7787 7789-7791 7813 7815 7821 7823 7836 7838-7839 7841 7843 7852-7853 7855 7860-7862 7881-7883 7897-7901 7903 7908-7910 7952-7953 7955 7960-7961 7963 8008 8010 8015 8026 8031-8032 8034-8035 8037 8046-8049 8053 8055 8058 8061 8063 8096-8097 8106-8110 8120-8121 8123 8140 8142-8144 8153-8154 8159 8168-8170 8172-8173 8175-8176 8178-8179 8184-8185 8187 9179 9182-9183 9211 9213-9215 10226-10227 10229-10231 11255 11258-11259 12247 12251-12252 12254-12255 12276-12277 12279 6/122-123 168-169 171 201 513 515 521-526 536-537 539 548 550 561 736-737 745-747 845-847 896-898 1104 1112 1114 1124-1126 1128 1134-1135 1138-1139 1217-1219 1320-1321 1409-1411 1976-1977 1980-1981 1983 2008-2010 2013 2088-2089 2091 2177-2179 2860-2861 2863 2884-2886 2892 2894-2895 2944 2946 2949 2951 3032 3040 3260 3262-3263 3268-3270 3272-3274 3280-3281 3284-3285 3332-3334 3347 3368-3370 3372-3373 3375 3388-3389 3391 3396 3398 3404 3412 3414-3415 3417-3420 3422-3423 3429 3431 3434-3435 3437 3452 3461 3472 3481 3483 3509 3528 3530 3596-3597 3604 3606 3608 3616 3618-3619 3622-3623 3716 3718 4145-4147 4208-4209 4211 4460 4462-4463 4509-4511 5612-5614 5956 5958 5964 5966-5967 6092-6094 6100-6102 6104 6112-6114 6120 6461-6463 7132-7134 7148-7150 7152-7154 7356 7372-7373 7380 7382 7384-7385 7392 7394 7460 7462 7464 7696 7698 7704-7706 7724-7726 7728 7743 7785-7787 7800 7802-7803 7812 7829-7831 7836-7837 7880-7881 7884-7885 7888-7889 8079 8090-8091 8101-8103 8108-8109 8120-8122 8124-8125 8136 8138-8139 8168 8412 8414-8415 8428-8429 8431 9428 9431 9489-9491 9548-9550 9572 9574 9717-9719 9740 9742-9745 9747 9960-9962 10017-10022 10028 10030-10033 10035 10041-10043 10116 10118-10119 10164-10166 10172 10174 10188-10190 10192 10208-10209 10212 10588 10590-10591 10868-10870 10876 10878-10879 10924 10927 10932-10934 10937-10939 11016-11018 11040 11160-11161 11163 11168 11170-11171 11196-11198 11218-11219 11228-11230 11232-11234 11236 11264-11265 11267 11384-11385 11388-11389 11460 11462-11463 11492 11532-11534 11544 11552-11554 11556 11560 11792-11794 11804 11806 11816-11818 11820-11822 11828 11908-11910 11912-11913 11916 11995 11997-11999 12007 12013 12024-12025 12027-12029 12170-12171 12174 12196 12198 12296-12297 12299 12309 12312-12314 12325 12327 12340 12342-12343 12352-12353 12355 12361 12363 12388-12389 12392 12394 12408-12409 12411 12421 12426 12454 12462 12480 12487 12493 12495 12497-12499 12517 12519 12536-12537 12540-12541 12556 12558-12559 12568-12570 12598-12599 12616-12617 12620-12621 12623 12628-12629 12631 12638-12639 12642-12643 12645-12647 12700-12702 12716-12717 12744 12751 12760 12762 12770-12771 12780 12787 12824 12826 12850-12851 12854 12860 12862-12863 12904 12906 12932-12934 12952-12953 12980-12981 12983 12996 12998 13040 13042-13043 13081 13084-13085 13127-13128 13131 13153 13155 13160 13162-13165 13176-13177 13181 13183 13189 13191 13197 13239 13256 13259 13269-13272 13274-13275 13277 13279 13304-13306 13325 13327 13344 13346-13347 13350 13356 13358-13361 13369 13371 13444 13447-13448 13450-13451 13484-13486 13496-13497 13500-13501 13503 13548-13550 13556-13558 13560-13561 13632-13634 13676 13678 13680-13681 13691 13728-13729 13731 13737 13739 13764 13766 13772 13774-13775 13777 13779 13785 13787 13808-13810 13830 13847 13889-13891 13924-13926 13985 13989 13991 13994-13995 13998 14013 14037-14038 14042-14044 14046 14068 14072-14074 14081 14117 14128-14129 14131 14137 14139 14148-14150 14159 14165 14167 14170 14204-14205 14210 14221 14223 14240 14245 14247 14264 14269 14284 14286 14288 14290 14312 14365-14367 14370-14371 14375 14385-14387 14400-14401 14403 14408 14410-14411 14414 14436 14438 14444 14446 14448-14449 14451 14461 14463 14504-14506 14528 14530 14536 14538 14546-14547 14549 14551 14558-14561 14563 14570 14617 14619 14624 14627 14629-14631 14641-14643 14648 14650 14652-14653 14674-14675 14696-14697 14699 14716 14719 14736 14738-14739 14743 14785-14787 14800 14802-14803 14844-14846 15160-15162 15164 15172-15174 15180 15182 15184-15185 15189-15191 15193 15195 15200-15202 15215 15217 15226-15227 15230 15232-15233 15236 15242-15243 15245-15247 15297-15299 15316 15320-15322 15328-15329 15332-15333 15372 15374 15392 15404 15406-15407 15424-15425 15427 15446 15452 15454 15460-15461 15472 15500 15502 15520 15522 15773-15775 15796-15797 15799 15904-15905 15908 17567 17589 17603 17606 17652 17654-17655 17664-17665 17667-17669 17671 17673 17680 17682 17688 17694-17695 17713 17715 17721 17732-17733 17735 17738-17742 17809 17811 17817-17819 17829 17831-17832 17834 17837 17839 17868 17870-17871 17896-17898 17916 17918-17919 17989 17997 18008-18009 18011 18021 18023 18027 18077-18079 18083 18090-18091 18176 18178-18180 18182-18183 18260 18262 18300-18301 18303 18644-18645 18649 18651 18653 18655 18661-18663 18765-18767 18773 18775 18781-18782 18818-18819 18830-18831 18833-18835 18948 18950-18951 18965 18967 18972-18973 18975 18992 18994-18995 19104-19105 19108-19109 19111 19128-19130 19132-19133 19135 19236-19237 19239 19284 19286-19287 19348-19350 19352-19353 19355 19376 19378-19379 19540-19541 19544 19546 19568 19570-19571 19574 19680-19682 19684-19685 19688 19690-19691 19712 19727 19729 19737-19739 19751 19754-19755 19757-19758 19769 19771 19824 19826 19829 19926-19927 19988 19990 20012-20014 20033 20035 20042-20043 20086-20087 20100 20102-20103 20113 20115 20123 20196-20198 20200-20202 20232-20233 20235 20258 21353 21355 21373-21375 21421-21423 21431 21437-21439 21441 21443 21449 21589 21591 21596-21597 21599 21619 21687 21710-21711 21713 21715 21722-21723 21730-21731 22022-22023 22034-22035 22037-22039 22051 22132-22134 22344-22345 22347 22654-22655 22679 22717 22722-22723 22726-22727 22737-22739 22796-22797 22799 22826 22830-22831 22833 22835 22842 22844-22845 22934 22940 22942-22943 22988-22989 23008 23010 23022 23025 23027 23037 23063 23069 23071 23077-23079 23105-23107 23173-23176 23178-23179 23372 23374-23375 23596-23597 23599 23620-23621 23629-23631 24276-24277 24279-24280 24282 24304-24306 24309-24312 24314-24315 24457-24459 25434-25435 25437-25439 25445 25447 25453 25455 25514-25515 25518-25519 25530-25531 25533-25535 25537 25539 25545 25547 25569-25571 25701 25703 25708-25709 25711 25718-25719 25751 25766-25767 25771 25778-25779 25794-25795 25857-25859 25872 25874-25875 25877 25886 25889 25896 25898-25899 25929 25941-25943 25958 26115 26136-26137 26139 26217 26219 26260 26262 26305 26307 26332-26333 26352 26354-26355 26372-26374 26384-26385 26387 26392 26394-26395 26504-26505 26718 26727 26813-26815 26823 26833-26835 26853 26855 26880-26881 26883-26886 26888-26889 27153-27155 27168-27169 27171 27177 27179 27365 27367 27373-27375 27456-27458 27702-27703 27716 27718-27719 27832 27834-27835 28212-28213 28215 28229-28230 28364-28365 28367 28372-28374 28380 28382-28383 28416-28417 28425-28427 28448-28450 28459 28461-28463 28545-28547 28660-28661 28663 29567 29651 29653 29655 29669 29674-29675 29678-29679 29689 29927 29932-29933 29935 29940 29942-29943 30120 30122 30170-30171 30200-30201 30203 30250 30254 30271 30277 30303 30314-30315 30318-30319 30340 30342-30343 30357 30359-30360 30365 30367 30372 30374-30375 30384 30386-30387 30418 30424 30426-30427 30430-30431 30470-30471 30488 30490 30496-30497 30499 30512 30549 30551 30557 30559 30573 30575 30578-30579 30581-30583 30626 30661 30680-30681 30684-30685 30841 30843 30907 30910-30911 30919 30948-30949 30951 30954-30955 30958-30959 30972 30974-30975 30999 31001-31003 31025-31027 31137-31139 31152 31154-31155 31249 31251 31257 31259 31281 31283 31289 31291 31348 31351 31363 31369-31371 31416 31418-31419 31452-31453 31455 31520-31521 31584 31586-31587 31610-31611 31645-31647 31816 31818-31819 31825-31826 31828 31832 31834 31837 31848-31849 31851 32038 32044 32046 32055 32059 32098 32108 32110 32119 32132 32134-32135 32145 32147 32156-32157 32178 32182-32183 32200-32201 32204 32219 32241 32243 32249-32251 32392-32394 32396 32416 32418-32419 32422-32423 32446-32447 32489-32491 32564 32566-32567 32581 32583-32584 32589 32591 32610 32620-32621 32623-32625 32628-32629 32631-32632 32635 32686 32696-32697 32699 32709 32711 32744-32745 32747 36711 36714-36715 36722-36723 36726 36759 36765 36779 36783 36794 36832-36833 36836-36837 36839 36849-36851 40797 40859 40902-40903 40913-40915 44990 45017-45019 48981-48983 48997-48999 49014 49093 49095 49112 491411.9867573869263685e-19 3.916500758235022e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/272/40?format=asciiOpticaldefaultJ/ApJS/272/40/table2Deduced photometric noise of the 1,358,275 starsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGaiaDR3Gaia DR3 identifier (GaiaDR3_SourceID)meta.id;meta.mainindexedGmag[9.42/15.35] Gaia G-band magnitude (Gmag)magphot.mag;em.optfloatTeff[3837.4/6500] Effective temperature (teff)Kphys.temperature.effectivefloatlogg[1.3/4.7] Log of surface gravity (logg)log(cm.s**-2)phys.gravityfloat[Fe/H][-0.95/0.4] Abundance [Fe/H] (feh)log(Sun)phys.abund.FefloatSindex[0.07/0.41] S-index (Sindex)spect.indexfloatCDPP1.5h