J/ApJ/902/114ivo://CDS.VizieR/J/ApJ/902/114doi:10.26093/cds/vizier.19020114CDSWang S.Bai YuHe L.Liu J.2022-06-13T12:03:58Z2022-05-10T13:07:36ZCDS support team

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

cds-question@unistra.frx-ray-sourcesgiant-starsdwarf-starsyoung-stellar-objectsultraviolet-astronomystellar-distancevisible-astronomyStellar magnetic activity provides substantial information on the magnetic dynamo and the coronal heating process. We present a catalog of X-ray activity for about 6000 stars, based on the Chandra and Gaia DR2 data. We also classified more than 3000 stars as young stellar objects, dwarf stars, or giant stars. By using the stars with valid stellar parameters and classifications, we studied the distribution of X-ray luminosity (L_X_) and the ratio of X-ray-to-bolometric luminosities (R_X_), the positive relation between L_X_, R_X_, and hardness ratio, and the long-term X-ray variation. This catalog can be used to investigate some important scientific topics, including the activity-rotation relation, the comparison between different activity indicators, and the activities of interesting objects (e.g., A-type stars and giants). As an example, we use the catalog to study the activity-rotation relation, and find that the young stellar objects, dwarfs, and giants fall on a single sequence in the relation R_X_ versus Rossby number, while the giants do not follow the relation R_X_ versus P_rot_^-2^R^-4^ valid for dwarfs.2020ApJ...902..114Whttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/902/114CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/chandra : The Chandra Archive Log (CXC, 1999-2014)II/311 : WISE All-Sky Data Release (Cutri+ 2012)II/335 : Revised catalog of GALEX UV sources (GUVcat_AIS GR6+7) (Bianchi+ 2017)I/347 : Distances to 1.33 billion stars in Gaia DR2 (Bailer-Jones+, 2018)I/345 : Gaia DR2 (Gaia Collaboration, 2018)I/349 : StarHorse, Gaia DR2 photo-astrometric distances (Anders+, 2019)II/360 : Gaia DR2 x AllWISE catalogue (Marton+, 2019)J/ApJ/574/258 : X-ray-emitting young stars in Orion (Feigelson+, 2002)J/A+A/397/147 : Activity-rotation relationship in stars (Pizzolato+ 2003)J/A+A/455/903 : ACIS-I observations of NGC 2264 (Flaccomio+, 2006)J/ApJ/687/1264 : Age estimation for solar-type dwarfs (Mamajek+, 2008)J/MNRAS/407/465 : Fast-rotating M dwarfs in NGC2516 (Jackson+, 2010)J/AJ/141/50 : White-light flares on Kepler cool stars (Walkowicz+, 2011)J/ApJ/743/48 : Stars with rot. periods & X-ray luminosities (Wright+, 2011)J/other/Nat/485.478 : Superflares on solar-type stars (Maehara+, 2012)J/A+A/551/L8 : Chromospheric activity of field stars (Pace, 2013)J/ApJS/209/5 : Superflares of Kepler stars. I. (Shibayama+, 2013)J/MNRAS/431/2063 : UV/X-ray activity of M dwarfs within 10pc (Stelzer+, 2013)J/ApJ/776/67 : Rotational tracks (van Saders+, 2013)J/ApJS/211/24 : Rotation periods of Kepler MS stars (McQuillan+, 2014)J/MNRAS/447/2714 : Flare stars across the H-R diagram (Balona+, 2015)J/MNRAS/454/1525 : XMM-Newton and Chandra monitoring of Sgr A* (Ponti+, 2015)J/A+A/583/A65 : Active Kepler stars differential rotation (Reinhold+, 2015)J/A+A/589/A113 : PMS stars in h Per (Argiroffi+, 2016)J/ApJS/224/37 : White-light flares on Kepler close binaries (Gao+, 2016)J/MNRAS/458/3479 : SVM selection of WISE YSO Candidates (Marton+, 2016)J/ApJS/224/40 : Catalog of Chandra ACIS point like sources (Wang+, 2016)J/MNRAS/467/1830 : Starspots on A stars (Balona, 2017)J/ApJ/851/91 : Stat. studies of solar white-light flares (Namekata+, 2017)J/ApJS/235/16 : UV emission of stars in LAMOST. I. Catalogs (Bai+, 2018)J/A+A/616/A10 : 46 open clusters GaiaDR2 HR diag. (Gaia Collaboration, 2018)J/ApJ/871/193 : Chandra & LAMOST study of stellar activity (He+, 2019)J/ApJ/872/17 : HAZMAT V. UV & X evolution of K stars (Richey-Yowell+, 2019)J/ApJS/241/29 : Flare catalog through LC data of Kepler DR25 (Yang+, 2019)J/other/NatAs/4.03 : Rotation and activity across HR diagram (Lehtinen+, 2020)J/other/NatAs/4.658 : Rotation and activity across HR diagram (Lehtinen+, 2020)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/902/114https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/902/114http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/902/114https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/902/114https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/902/114http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/902/114GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/902/114/table2 (Main properties for the stars in our sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/902/114/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/902/114/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/902/114/table2?GETtext/xml+votable180.050000true0.0537462.496570.0055555555555555565/757 2286 3610 4178 6814 6/0 19 24 50 87 97 153 206-207 245 286 301 306 342 368 393 399 463 474 520 522 609 686 700 757 764 799 821 862 881 922 928 932 984 1005-1006 1052 1054 1061 1063 1074 1080-1082 1113-1114 1122-1123 1128-1129 1154 1168 1170 1196 1198-1199 1226 1231 1285 1287 1298 1390 1399 1405 1407 1466-1468 1528 1539 1549 1603 1609 1650 1671 1694 1700-1701 1703 1716 1784 1791 1848 1850 1852 1930 1945 1962 2022 2051 2072 2110 2125 2154-2155 2186 2207 2214 2225 2227 2232 2245 2251 2282 2317 2340 2374 2377 2388 2409 2414 2432 2436 2441 2473 2564 2572 2579 2585 2623 2666 2687 2704-2705 2708-2709 2808-2809 2813 2866 2886-2887 2899 2920-2921 2951 2981 3011 3042 3044 3046 3052 3054 3058 3063 3078 3092-3093 3157 3234 3256-3258 3278 3290 3302 3304 3307-3308 3312 3325 3389 3446 3506 3529 3582 3630 3633 3642 3649 3681-3682 3712-3713 3762 3803 3818-3819 3824 3878 3884 3910 4011 4108 4124 4150 4158 4182 4196 4206 4215-4216 4245 4298 4341-4342 4344 4350 4352 4376 4378 4406 4450 4507 4511-4512 4549 4577 4599 4615 4689-4690 4698 4718 4720 4758-4759 4775 4801 4804 4808 4952 4959 4965-4966 4990 5018 5026 5046 5048-5049 5059 5067 5075 5100 5103 5142 5165 5241 5284 5311 5327 5396 5399 5413 5429 5471 5491-5492 5524 5536 5538 5569 5597-5598 5609 5625 5634 5664 5668 5678 5731 5733 5743 5793 5816 5846 5881 5890-5891 5904 5906 5939 5945 5970 5982 5985 5989 5996 6001 6010 6014 6042 6045-6046 6069 6071 6073 6075 6077 6083-6084 6086 6100 6146-6147 6181 6196 6220 6241 6252 6337 6365 6382-6383 6386 6419 6427-6428 6441 6448 6536 6539 6618 6639 6760 6826-6827 6867 6923 6926 6948 7004 7026 7039 7178 7214 7223 7227 7242-7243 7251 7261 7266 7273 7309 7318 7320 7371 7385 7426 7428 7485 7510 7604 7606-7607 7612 7743 7745 7756 7768-7769 7784 7799 7896 7921 7928 7941 7957 7959 8017 8033 8043 8066 8072 8074 8106-8107 8123 8193 8195 8198 8234 8264 8266 8268 8288 8338-8339 8345 8440 8458 8520 8528 8537 8555 8644 8648 8708 8713 8912 8963 8969 8997 9039 9047 9049-9050 9072 9133 9149-9151 9157 9168 9175 9181 9272 9287 9314 9321 9342-9343 9363 9367 9374 9403 9428 9466 9468-9469 9472 9476 9496 9498 9506 9581 9593 9640 9664 9666 9747 9801 9812 9831 9895 9898 9938 9981 9986 9988 9995 9997 9999 10004 10016 10051 10074 10080 10131 10137 10144 10153 10155 10182-10183 10190 10193 10212-10213 10217-10218 10235 10302 10312 10323 10345 10354 10364 10371 10379 10388 10394 10411 10413 10442 10464 10473 10484-10485 10512-10513 10515-10518 10527 10529 10544 10579 10601 10607 10616 10644-10645 10658 10664 10694 10743 10841 10877 10894 10911-10912 10992 11000 11027 11080 11101 11149 11194 11206 11252 11259 11264 11323 11347 11364 11372 11424-11425 11427-11428 11433-11434 11438 11467 11488-11489 11512 11520 11524 11562 11589 11591 11596 11604-11605 11613 11626 11632 11636 11638-11639 11666 11672-11673 11675 11681 11807 11813 11832 11904 11908 11933 11958 12025 12121 12130 12138 12181 12184 12241 12336 12396 12421 12446 12459 12537 12553 12555 12577 12597 12599 12642 12653 12673 12678 12684 12719 12804 12806 12871 12943 12958 12968 12970 12973 12975 12981 12983-12984 13026 13036 13050 13074 13120 13125 13128 13162 13184 13205 13209 13214 13224 13250 13256 13297 13312 13314 13345 13362 13384 13465 13504 13511 13522 13529 13564 13643 13672 13676 13707 13760 13855 13875 13927 13993 13995 14029 14031 14049 14056 14190 14219 14225 14227 14238 14270 14272 14285 14301 14305 14307 14316-14317 14346 14353 14362 14411-14413 14415 14431 14449 14454 14573 14575 14608 14610 14619 14621-14624 14629 14631-14632 14641 14644-14645 14649 14655 14670-14671 14682 14685 14687 14689-14694 14696 14702 14704 14738 14744 14752-14753 14766 14772 14777 14788 14858 14906 14910-14911 14925 14935 15003 15030 15036 15056 15064 15104 15106 15112 15135 15154-15155 15172 15178 15193 15286 15302 15310 15341 15344 15351 15362-15363 15368-15370 15383 15453 15478-15479 15484 15511 15552 15559 15570 15580 15592-15593 15639 15641 15644 15646 15654 15662-15663 15679 15681-15684 15748-15749 15752 15754 15759 15874 15880 15909 16030-16031 16051 16054 16056 16059 16080 16093 16189 16191 16197 16221 16276 16301 16486 16492 16499 16591 16666 16882 16886 16952-16953 17171 17205 17222 17235 17237 17264 17286 17300 17341 17450 17472 17487 17492 17497 17499 17502 17535 17592 17618 17672 17688 17692 17745 17754-17755 17767 17769 17772 17774 17780 17809 17816 17819 17822 17840 17850 17920 18003 18009 18011 18016 18034 18055 18060 18076 18096 18123 18184 18189 18227 18269 18274 18365 18398 18406 18411 18475 18480 18534 18546 18601 18604 18623 18741 18757 18779 18784 18789-18790 18793 18795 18826 18852 18865 18878 18894 18923 18935 18963 18968 18970 19009 19026 19033 19036 19045 19061 19089 19091 19094-19095 19097 19101 19110 19157 19204 19216 19283 19325 19432 19451 19456 19608 19661 19663 19745 19846 19935 19950 20000 20014 20021 20083 20177 20273 20292 20325 20371 20574 20657 20661 20707 20720-20721 20725 20745 20874-20875 21016 21134 21169 21209 21211 21215 21283 21358 21433 21436 21438-21439 21447 21456 21458 21482 21511 21517 21523 21526 21554 21588 21609 21641 21643 21654 21664 21677 21690 21702 21747 21766 21811 21873 21900 21944 21971 21977 22042 22082 22093 22095 22159 22208 22241 22243 22247 22249 22252 22254-22255 22316 22318 22357 22364 22403 22505 22507 22577 22580-22581 22590 22607 22628 22661 22690 22721-22722 22746 22751 22769 22771-22772 22786 22804-22806 22822 22826 22828 22830 22849 22855 22873 22876 22893 22895 22915-22916 22944 22955 22959 22970 22972 23010 23025 23027 23078 23117 23173 23185 23187 23204 23234 23269 23296 23300 23306 23324 23339 23349 23366 23384 23437 23451 23469 23533 23549 23560 23562-23563 23611 23623 23637 23639 23644 23674-23675 23688 23704-23705 23764 23766 23830 23889 23952-23953 23968-23969 23983 23995 24003 24014 24032 24118 24185 24198 24247 24300 24304 24339 24345 24349 24449 24451 24454 24460-24461 24466 24491 24522 24566 24740 24763 24765 24839 24943 25055 25083 25102 25245 25302 25334 25344 25366 25369 25451 25540 25594-25595 25597 25647 25667 25671 25675 25682-25683 25699 25762 25769 25771 25790 25793 25852 25906 25919 25934-25935 25938 25950 25963-25964 25973 25979 25981 26022 26037 26055 26102 26125 26166 26177 26180 26189 26200 26209 26212 26232 26238-26239 26245 26276-26277 26313 26316 26338 26340 26361 26393 26469 26690 26749 26770 26785 26858 26876 26916 26936-26937 26955 26962 26968 26977 26990 26995 27009 27061 27075 27091 27096 27124 27136 27156 27174 27192 27204 27218 27224 27237 27245 27247 27269 27314 27318 27327 27344 27361 27382 27392 27420 27428 27466 27515 27537 27574 27652 27681 27694 27719 27728 27734-27735 27737 27764 27767 27773 27817 27867 27872 27889 27913-27914 27918 27931 27938 27942-27944 27954 27962 28019 28032-28033 28086 28126 28141 28143 28149 28173 28184 28221 28237 28254 28293 28311 28356 28376 28430 28452 28471 28486 28489 28497 28535 28538 28548 28619 28631 28762 28778 28818 28822-28823 28825-28828 28830 28837 28848-28849 28852 28855 28864 28872-28873 28876 28890-28892 28894 28896 28898-28901 28912-28913 28917 28921-28922 28930 28955 28959 28970-28971 28973 28999 29070 29097 29100 29113-29114 29116 29118 29162 29169 29172 29184 29189 29195 29220 29231 29233-29234 29240-29242 29248 29253 29257 29259 29261 29264 29267 29271 29278 29287 29318 29377 29416 29461 29463 29471 29504-29506 29508 29510-29511 29513 29517 29520-29521 29523 29529 29535 29558 29575 29632 29636 29718 29730 29868 29936-29937 30040 30140 30193 30219 30222 30241 30243-30244 30256 30258-30259 30262 30269 30276 30298-30299 30314-30315 30318-30321 30328 30330 30334-30335 30341 30343 30366 30378 30416-30417 30423 30453 30463 30466 30506 30508 30511 30527 30570 30593-30595 30598 30604 30607 30616 30618-30619 30622 30634 30645 30657 30670 30688 30692 30694 30709 30716 30719 30803 30818 30822 30878 31043 31081 31115-31116 31158 31258 31276 31303 31333 31352 31365 31376 31379 31453 31509 31515 31532 31537 31621 31625 31670 31725 31730 31736 31851 31898 31940 31951 31957 31982 32058-32059 32067 32070 32208-32209 32481 32484 32500 32647 32739 34668-34669 34701 34726 34788 34793 35683 35696 35707 35759 35770 35935 36028 36082 36107 36152 36160 36172 36177 36189 36231 36243 36247 36258 36261 36263 36323 36343 36377 36392 36427 36547 36618 36621 36660 36712-36713 36766 36785 36846-36847 36863 38655 38821-38822 38842 38852 38868 39784 39836 39907 39909 39920 40124 40252 40279 40290 40321 40323 40344 40384 40410 40433 40456 40564 40613 40615 40776-40777 40803 40809 40812 40856 42841 42869 42931 42952 42955 42958 42970 42981 42983-42984 42989-42992 43881 43898 43925 43941 43945 43947 43957 43968 43977 43995 44026 44119 44125 44226 44252 44261 44286 44290 44313 44316 44356 44371 44454 44554 44563 44660 44671 44697 44713 44802 44812 44947 45031 46998 47043 47050 47053 47080 47102 47960 47971 48035 48076 48105 48330 48338 48344 48388 48423 48434 48475-48476 48478 48500-48501 48595 48684 48686 48688 48776 48891 48966 49011 49014 49021 49023 49120 49125https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/902/114?format=asciiX-rayUVOpticaldefaultJ/ApJ/902/114/table2Main properties for the stars in our samplerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNcNumber of Chandra observations for this source (link to Table 1)meta.numberintnullableCXOGSGObject identifier (JHHMMSS.s+DDMMSS)meta.id;meta.maincharprimaryUVDisplay the GALEX ultraviolet data for this source (link to Table 4)meta.ref.urlintnullableRAJ2000Right Ascension (J2000)degpos.eq.ra;meta.mainDEJ2000[-31.6/82.5] Declination (J2000)degpos.eq.dec;meta.mainClassStellar classification ("g"= giant, 697 occurrences; d=dwarf; y=YSO; See Section 2.3)src.spTypecharDist[19/10520] Gaia DR2 distancepcpos.distance;pos.heliocentricintE_Dist[0/4337] Upper uncertainty in Distpcstat.error;stat.maxinte_Dist[0/2644] Lower uncertainty in Distpcstat.errorintE(B-V)[0/3.6] The (B-V) color excess from PS1 3D mapmagphot.color.excessfloatFx[0.2/14360] Average unabsorbed 0.3-8keV flux (in units of 10^-15^erg/s/cm^2^)1e-15mW.m**-2phot.flux;em.X-rayfloate_Fx[0.1/1266] Uncertainty in Fx1e-15mW.m**-2stat.errorfloatLx[3.8e+26/3.8e+33] The 0.3-8keV luminosity; erg/s1e-07Wphys.luminosity;em.X-rayfloate_Lx[1e+26/1e+33] Uncertainty in Lx1e-07Wstat.errorfloatlogRx[-8.1/-0.9] log X-ray to bolometric luminosity ratiophys.luminosity;arith.ratiofloate_logRx[0/0.6] Uncertainty in logRxstat.errorfloatHR1[-0.99/1]? Hardness ratio, HR1=(M-S)/(M+S) (1)phot.flux;arith.ratiofloatnullablee_HR1[0/3.1]? Uncertainty in HR1stat.errorfloatnullableHR2[-1/0.99]? Hardness ratio, HR2=(H-M)/(H+M) (2)phot.flux;arith.ratiofloatnullablee_HR2[0/5.2]? Uncertainty in HR2stat.errorfloatnullableGaiaDisplay the Gaia DR2 distances from Bailer-Jones+, 2018, I/347 within 3"meta.ref.urlcharJ/ApJ/902/114/table1Individual Chandra observation for stars in our sampleMJD[51405.47/56987.76] Modified Julian Datedtime.epochdoubleindexedCR[0.03/571] Count ratect/ksphot.count;em.X-rayfloatCXOGSGObject identifiermeta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintObsIDChandra/ACIS observation identifiermeta.id;obs.param;obsinte_CR[0.03/22] Uncertainty in CRct/ksstat.errorfloatFlux[0.2/216000] Flux; 1e-15 erg/s/cm^2^1e-15mW.m**-2phot.flux;em.X-raydoublee_Flux[0.1/34680] Uncertainty in Flux1e-15mW.m**-2stat.error;phot.fluxfloatJ/ApJ/902/114/table4Stars with UV emission in our (Section 4.2)CXOGSGObject identifiermeta.id;meta.maincharlogR'FUV[-5.7/-0.8]? log GALEX FUV activity indexphot.flux;arith.ratiofloatnullablee_logR'FUV[0.01/7.3]? Uncertainty in logR'FUVstat.errorfloatnullablelogR'NUV[-6.8/4.8]? log GALEX NUV activity indexphot.flux;arith.ratiofloatnullablee_logR'NUV[0.01/2037]? Uncertainty in logR'NUVstat.errorfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintlogFUV[4.88/9.5]? log GALEX FUV excess flux from activitylog(mW.m**-2)phot.color.excess;em.UV.100-200nmfloatnullablee_logFUV[0.01/7.3]? Uncertainty in logFUVlog(mW.m**-2)stat.errorfloatnullablelogNUV[4/16.3]? log GALEX NUV excess flux from activitylog(mW.m**-2)phot.color.excess;em.UV.200-300nmfloatnullablee_logNUV[0.01/2037]? Uncertainty in logNUVlog(mW.m**-2)stat.errorfloatnullable