J/ApJ/831/20ivo://CDS.VizieR/J/ApJ/831/20doi:10.26093/cds/vizier.18310020CDSBrewer J.M.Fischer D.A.2024-12-30T20:08:34Z2017-02-27T09:15:16ZCDS support team

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

cds-question@unistra.frg-starschemical-abundancessolar-system-planetsThe carbon-to-oxygen ratio in a protoplanetary disk can have a dramatic influence on the compositions of any terrestrial planets formed. In regions of high C/O, planets form primarily from carbonates, and in regions of low C/O, the ratio of magnesium to silicon determines the types of silicates that dominate the compositions. We present C/O and Mg/Si ratios for 852 F, G, and K dwarfs in the solar neighborhood. We find that the frequency of carbon-rich dwarfs in the solar neighborhood is <0.13% and that 156 known planet hosts in the sample follow a similar distribution as all of the stars as a whole. The cosmic distribution of Mg/Si for these same stars is broader than the C/O distribution and peaks near 1.0, with ~60% of systems having 1<=Mg/Si<2, leading to rocky planet compositions similar to the Earth. This leaves 40% of systems that can have planets that are silicate-rich and that may have very different compositions than our own.2016ApJ...831...20Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/831/20CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJS/225/32 : Extended abundance analysis of cool stars (Brewer+, 2016)J/A+A/584/A72 : A rocky planet at 6.5pc from the Sun (Motalebi+ 2015)J/A+A/568/A25 : C and O abundances in stellar populations (Nissen+, 2014)J/ApJ/778/132 : C and O abundances in 55 Cnc (Teske+, 2013)J/ApJ/735/41 : Carbon and oxygen abundances in FGK stars (Petigura+, 2011)J/ApJ/725/2349 : C/O vs Mg/Si of planetary systems (Delgado Mena+, 2010)J/ApJ/715/1050 : Predicted abundances for extrasolar planets. I. (Bond+, 2010)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/831/20https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/831/20http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/831/20https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/831/20https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/831/20http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/831/20GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/831/20/table1 (Stellar C/O and Mg/Si ratios (corrected version from the author))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/831/20/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/831/20/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/831/20/table1?GETtext/xml+votable180.050000true1.46875-41.753055560.0055555555555555566/49 60 75 100 188 257 292 309 311 377 414 418 423 460 462-463 475 548 576 649 679 684 701 712-713 742 748 766 790 814 819 824 871 913 934-935 944 987 1058 1184 1186 1201 1237 1258 1268 1275 1341 1415 1530 1576 1597 1642 1669 1808 1817 1827 1875 1907 1927 1940 1997 2072 2110 2167 2279 2299 2416 2433 2436 2497 2551 2577 2584 2645 2651 2691 2711 2923 3020 3041 3102 3166 3199 3296 3344 3372 3383 3639 3683 3691 3697 3780 3837 3925 3979 4106 4136 4156 4225 4280 4321 4328 4332 4422 4429 4591 4634 4665 4766 4776 4839 4881 4990 4993 4997 5009 5067 5074 5095 5208 5304 5308-5309 5413 5522 5524 5553 5556 5572 5726 5836 5843 5872 5895 5929 6007 6226 6269 6287 6293 6308 6385 6409 6485 6489 6522 6539 6584-6585 6638 6687 6760 6766 6791 6821 6932 7136 7229 7240-7241 7245 7299 7345 7352 7746 7763 7803 7866 7868 7978 8109 8224 8237 8268 8319 8357 8466 8614 8617 8663 8700 8788 8790 8792 8825 8881 8995 9102 9225 9355 9365 9403 9435 9442 9476 9492 9591 9594 9654 9656 9662 9677 9679 9753 9801 9810 9843 9859 9873 9883 9885 10004 10031 10140 10238 10263 10407 10518 10537 10550 10553 10567 10598 10659 10730 10740 10766 10772 10787 10812 10854 10899 10914 11059 11091 11142 11146 11165 11194 11197 11363 11412 11510 11589 11633 11713 11732 11734 11856 12146 12203 12228 12312 12341 12418 12424 12467 12612 12640 12644 12658 12662 12792 12798 12807 12846 12856-12857 12890 12899 12944 13002 13025 13093 13122 13134 13414 13423 13425 13440 13487 13568 13625 13650 13698 13702 13717 13749 13941 13946 14066 14089 14131 14140 14155 14180 14207 14290 14305 14347 14412 14416 14419 14459 14502 14525 14539 14548 14568 14573 14578-14579 14581 14585 14589 14624 14735 14744 14754 14757 14759-14760 14763 14767 14769-14770 14772 14774 14779 14781 14825 14827 14830 14850 14917 14920 14928-14930 14933 14936 14938-14939 14942 14946 14949 14955 14957-14959 14962 14964 14966-14970 14975 15030 15040-15041 15044 15060-15062 15070 15104 15107-15108 15110 15119 15121 15132 15134 15138 15143 15145-15146 15148-15149 15153-15154 15156 15170-15171 15174 15218 15227 15290 15319 15356 15362 15550 15712 15806 16069 16088 16164 16185 16342 16347 16350 16432 16627 16639 16652 16678-16679 16689 16707 16783 16798 16883 16971 17098 17137 17187 17218 17266 17314 17341 17404 17425 17496 17507 17541 17552 17606 17622 17637 17671 17730-17731 17812 17847 17944 17999 18028 18139 18340 18343 18373 18417 18459 18473 18536 18614 18628 18637 18640 18650 18658 18711 18764 18779 18784 18809 18821 18953 18976 19002 19139 19153 19196 19291 19327 19350 19488 19495 19509 19555 19904 19974 20072 20081 20145 20166 20328 20332 20402 20593 20605 20621 20641 20665 20701 20716 20739 20746 20872 21003 21119 21177 21185 21223 21406 21477 21484 21550 21673 21703 21726 21779 21838 21906 21936 21956 22001 22036 22065 22087 22111 22120 22125 22157 22159 22252 22408 22465 22519 22571 22708 22800 22878 22981-22982 23013 23018 23030 23177 23187 23201 23301 23328 23367 23382 23414 23506 23513 23545 23583 23591 23636 23661 23665 23710 23737 23739 23780 23862 23893 23932 23938 23940 23943 23961 24005 24016 24019 24028 24030 24102 24105 24151 24178 24212 24312 24568 24713 24729 24731 24827 24924 24991 25078 25102 25127 25132 25192 25225 25407 25446 25452 25584 25595 25692 25729 25766 25875 25880 25906 25930 25939 25966 26062 26160 26183 26242 26266 26268 26298 26335 26379 26462 26496 26551 26575 26706 26745 26761 26779 26828 26906 26953 26961 26976 26978 26986 26992 27001 27018-27019 27060 27079 27088 27179 27314 27395 27475 27518 27661 27788 27943 27973 28009 28041 28076 28085 28122 28130 28141 28180 28311 28395 28400 28433 28473 28500 28518 28605 28609 28668 28767 28987 29084 29291 29349 29513 29541 29640 29683 29728 29852 30015 30170 30344 30435 30526 30529 30540 30579 30665 30837 30848 30878 30919 30968 31029 31104 31130 31145 31197 31399 31416 31425 31433 31449 31478 31494 31571 31606 31667 31720 31737 31751 31768 31796 31821 31860 32083 32282 32318 32372 32499 32520 32561 32564 32575 32633 32645 32693 32727 32749 32757 34282 34290 34717 34739 34773 35166 35497 35753 35789 35802 35811 35848 35865 35949 36019 36029 36069-36070 36092 36115 36158 36171 36292 36295 36323 36347 36365 36390 36635 36661 36693 36697 36713 36723 36746 36766 36813 38238 38260 38452 38545 38742 38765 38807 39422 39562 39646 39767 39854 40078 40101 40105 40270 40442 40590 40692 40722 41941 42318 42460 42936 42986 42989 43577 43639 43813 43847 44228 44243 44317 44398 44740 44792 44891 45034 45927 46437 46959 47935 48108 48230 48394 48402 48460 48501 48597 48652 48705 48955 49060 49114 49130https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/831/20?format=asciidefaultJ/ApJ/831/20/table1Stellar C/O and Mg/Si ratios (corrected version from the author)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSPOCS[2/3247] SPOCS IDmeta.id;meta.mainintNameStar name (1)meta.idcharVmag[0/13.7]? V band magnitude from SIMBAD (1)magphot.mag;em.opt.Vfloatnullable[C/H][-1.2/0.7] Derived [C/H] abundance (1)phys.abundfloat[O/H][-0.4/0.7] Derived [O/H] abundance (1)phys.abundfloat[Mg/H][-0.8/0.6] Derived [Mg/H] abundance (1)phys.abundfloat[Si/H][-0.7/0.6] Derived [Si/H] abundance (1)phys.abundfloatC/O[0.04/0.7] Abundance number ratio, N_C_/N_O_ (2)meta.idfloatMg/Si[0.4/1.4] Abundance number ratio, N_Mg_/N_Si_ (2)phys.abundfloatNp[1/5]? Number of known planetsmeta.numberintnullableV05Display data from Valenti+, 2005, J/ApJS/159/141meta.ref.urlcharSimbadSimbad column added by the CDSmeta.ref.urlchar_RAPositions from Brewer+, 2016, J/ApJS/225/32 (right ascension part)degpos.eq.ra;meta.main_DEPositions from Brewer+, 2016, J/ApJS/225/32 (declination part)degpos.eq.dec;meta.main