White dwarf population from the SDSS DR12 J/MNRAS/469/2102 ivo://CDS.VizieR/J/MNRAS/469/2102 doi:10.26093/cds/vizier.74692102 CDS Anguiano B. Rebassa-Mansergas A. Garcia-Berro E. Torres S.,Freeman K.C. Zwitter T. 2024-08-17T20:19:08Z 2020-05-14T07:40:50Z CDS support team CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France cds-question@unistra.fr white-dwarf-stars stellar-masses stellar-distance stellar-ages radial-velocity proper-motions We use the Sloan Digital Sky Survey Data Release 12, which is the largest available white dwarf catalogue to date, to study the evolution of the kinematical properties of the population of white dwarfs in the Galactic disc. We derive masses, ages, photometric distances and radial velocities for all white dwarfs with hydrogen-rich atmospheres. For those stars for which proper motions from the USNO-B1 catalogue are available, the true three-dimensional components of the stellar space velocity are obtained. This subset of the original sample comprises 20 247 objects, making it the largest sample of white dwarfs with measured three-dimensional velocities. Furthermore, the volume probed by our sample is large, allowing us to obtain relevant kinematical information. In particular, our sample extends from a Galactocentric radial distance R_G_=7.8 to 9.3kpc, and vertical distances from the Galactic plane ranging from Z=-0.5 to 0.5kpc. We examine the mean components of the stellar three-dimensional velocities, as well as their dispersions with respect to the Galactocentric and vertical distances. We confirm the existence of a mean Galactocentric radial velocity gradient, {partial}<V_R_>/{partial}R_G_=-3+/-5km/s/. We also confirm north-south differences in <V_z_> . Specifically, we find that white dwarfs with Z>0 (in the North Galactic hemisphere) have <V_z_><0, while the reverse is true for white dwarfs with Z<0. The age-velocity dispersion relation derived from the present sample indicates that the Galactic population of white dwarfs may have experienced an additional source of heating, which adds to the secular evolution of the Galactic disc. 2017MNRAS.469.2102A https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/469/2102 Catalog Research IsServedBy TAP VizieR generic service IsServedBy Conesearch service related-to V/147 : The SDSS Photometric Catalogue, Release 12 (Alam+, 2015) https://cds.unistra.fr/vizier-org/licences_vizier.html https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/469/2102 https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/469/2102 http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/469/2102 https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/469/2102 https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/469/2102 http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/469/2102 GET text/xml+votable https://tapvizier.cds.unistra.fr/TAPVizieR/tap Cone search capability for table J/MNRAS/469/2102/table1 (Data for the 20247 SDSS hydrogen-rich white dwarfs used in this work) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/469/2102/table1? https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/469/2102/table1? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/469/2102/table1? 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11512 11514 11520 11522 11526-11530 11544 11549-11552 11557 11559-11561 11569 11571 11573-11574 11577 11580 11585 11587 11589-11591 11593 11595 11608 11616 11780-11781 11783-11784 11787 11792-11793 11795-11798 11804 11806-11808 11810-11811 11816 11818-11819 11821-11823 11829-11831 11844-11845 11847 11849 11851 11855-11856 11858 11877 11884 11886 11908-11909 11911 11916-11918 11921-11926 11936-11937 11939 11944-11945 11953-11954 11960 11969 12288-12290 12307 12309 12316 12318-12321 12343 12352 12356 12358-12360 12364 12366 12378-12379 12381-12383 12385 12389-12391 12395-12397 12399 12401-12402 12404 12408-12409 12477-12479 12481 12521 12523 12536 12538 12556 12564 12566 12576 12611 12622-12623 12626 12629 12637-12639 12653-12655 12664-12665 12667-12668 12737 12757-12758 12760-12761 12788-12789 12817-12819 12821 12825 12828 12865 12867 13317-13319 13336 13340-13341 13348-13349 13360 13362-13363 13365-13366 13371 13374 13377-13379 13382-13383 13385-13386 13388 13390-13391 13395-13397 13402 13409 13411 13417 13423 13432 13434-13435 13456 13464 13468 13472 13474-13476 13508-13509 13520 13561 13569 13572 13586 13588 13604 13637 13639 13657-13660 13680-13681 13683 13773 13784 13799 13805 13807 13810 13935 14151 14156-14158 14168 14180-14181 14567 14573-14575 14584-14586 14910-14911 14917 14994-14998 15349 15894 15900 15911 15928-15930 16005 16016 16185-16190 16269-16271 16276 16278 16280-16282 16296 16299 16304 16799 16894-16895 17207 17213-17215 17223 17229 17231 17235-17237 17239 17247 17249-17254 17260 17264-17265 17268-17269 17271 17273-17275 17278-17279 17293 17295 17297 17299 17301 17308 17315 17320-17322 17330 17346 17355 17360 17362 17366-17367 17373 17376-17377 17381-17382 17389 17392-17394 17396-17397 17405-17407 17471 17487 17492-17493 17495-17497 17499-17501 17510-17512 17514-17518 17520 17524 17526 17533 17551 17557 17559 17564 17573 17575 17577-17578 17580 17589 17597 17601-17603 17607 17609 17611-17612 17619-17620 17623-17624 17627 17636 17638-17640 17644 17646-17647 17649-17653 17655-17656 17659 17661-17663 17668 17680 17685 17687 17691 17694 17697 17716-17717 17727-17728 17734 17737-17738 17740-17741 17743 17745 17747 17761-17763 17772 17774 17776 17778 17782 17784 17786 17790 17793-17794 17803 17805-17807 17809-17810 17812-17813 17815 17820 17822 17824-17825 17827 17829-17831 17836-17838 17840-17841 17845 17850 17853 17856-17857 17859 17862 17865 17869 17872 17877 17882 17889 17891 17893-17894 17896 17899-17901 17903 17910 17912-17913 17916 17924 17926 17935 17939 17943-17944 17949 17953-17954 17956 17962 17969 17973 17977 17979 17982-17983 17987-17989 17991 17994 17996-17997 17999 18002 18006-18008 18010 18012-18013 18017-18021 18023 18028 18030-18034 18038 18040 18042-18043 18045-18049 18051-18053 18055-18058 18061-18065 18067 18080-18081 18083 18088 18090-18094 18096 18098 18100 18103-18106 18112-18114 18116 18121-18122 18124-18126 18128 18130-18132 18135 18137 18144-18145 18148 18153 18156 18159 18164 18167-18170 18172 18174-18175 18182-18183 18191 18193-18194 18197 18200 18202 18207 18211-18213 18218 18222-18223 18225-18228 18230 18236-18237 18240-18241 18246 18249-18251 18266 18272-18273 18277 18281 18286 18291 18295 18300-18301 18303-18304 18306 18308 18317 18319 18321 18337-18338 18357 18377-18378 18381-18383 18385-18387 18400-18401 18403 18410-18411 18421-18423 18428-18429 18431 18511 18514-18515 18517 18519 18524-18526 18532-18534 18536 18538-18539 18541 18546 18582 18584-18586 18589 18599 18605 18607-18608 18610-18611 18614 18616-18618 18624-18625 18630 18634 18653 18677 18686-18689 18719 18737 18739-18741 18743 18747 18749-18751 18755 18765-18767 18776 18778-18779 18786-18787 18792 18794-18798 18801-18802 18807-18809 18811-18812 18814 18826-18827 18829-18831 18833-18835 18844-18846 18849-18851 18860-18862 18868-18869 18874 18877 18879 18884-18885 18888 18896 18898 18903-18904 18906 18911 18915 18926-18927 18933 18935-18937 18940-18942 18946 18949-18950 18952 18996 19003 19005-19007 19011 19021 19023 19025 19027 19032 19034-19036 19038 19041-19043 19045-19047 19052 19054 19056-19058 19063 19066 19068-19069 19071 19089 19091 19094-19097 19099 19106-19107 19109 19111 19113-19115 19120-19122 19124-19126 19128-19130 19132 19134 19136 19138-19139 19142 19144 19146 19151 19153-19154 19157 19159-19161 19163 19168 19171-19172 19175-19176 19179-19180 19182-19183 19185-19187 19189-19191 19193-19195 19198 19201-19203 19206 19209 19213 19216 19219 19221-19222 19227 19236 19238-19240 19242-19244 19246 19249-19251 19253 19259 19264 19267 19272-19273 19277 19280-19281 19292 19336 19340 19342 19344 19356 19360 19367 19378-19379 19382-19383 19389-19390 19398-19399 19403-19404 19406-19407 19412-19414 19416-19418 19420 19424-19425 19427-19429 19432 19438-19439 19442 19456-19457 19463 19466 19469-19470 19472 19476-19477 19479-19480 19487-19488 19490-19493 19497-19498 19500 19502 19508 19510-19512 19514-19515 19518-19519 19523-19524 19528 19532-19534 19543 19545 19550-19551 19553-19554 19557 19564-19565 19567 19571 19573 19576-19577 19579 19581 19583 19585-19586 19589 19591 19593 19595-19597 19599-19600 19602-19606 19608 19610 19612 19614-19615 19618 19620-19621 19623 19631-19632 19634 19636-19637 19639 19642 19649-19652 19654-19655 19657 19659 19661 19663-19664 19666-19667 19673-19677 19679-19680 19683-19684 19686 19696-19698 19704-19706 19708-19709 19720-19722 19725-19727 19731-19733 19735 19740 19742 19745-19747 19752-19753 19755-19758 19768-19769 19771 19773-19777 19779 19785 19788-19789 19791-19793 19797 19799-19800 19803-19805 19807-19808 19812 19815 19818-19819 19824-19825 19827 19829-19831 19835 19840-19842 19849 19851 19855-19857 19861 19863 19865-19866 19869-19870 19872-19873 19875 19877 19879 19883-19884 19886-19887 19889-19890 19899 19901-19902 19904 19907-19908 19910-19911 19914-19916 19918-19919 19925 19927 19932 19934 19939 19944-19946 19949-19951 19957-19961 19963 19966-19967 19969 19971 19979-19980 19982 19984 19987 19989-19991 20000-20001 20004-20005 20007 20012 20014 20016 20018 20020 20022-20023 20025 20029 20036-20037 20039 20041-20045 20047 20049 20051 20056-20058 20060-20062 20066 20068 20070-20073 20075 20077 20079 20081-20082 20086 20093 20096 20112 20114 20116 20119 20125 20132 20134 20138 20140 20142 20145 20147 20150 20162-20163 20165 20167 20176-20177 20180 20182 20185 20188 20190 20193-20196 20199 20202-20204 20206-20207 20209-20210 20224 20226 20229-20231 20234 20238-20240 20242-20244 20246-20247 20252-20254 20257-20259 20266 20268-20270 20272-20273 20275-20276 20278-20282 20288-20289 20292-20294 20298-20299 20302 20309 20311 20313 20318 20320-20322 20324 20328-20329 20335 20338 20341 20343 20347 20350 20356-20358 20362 20368 20374-20376 20380 20382 20384 20389-20391 20393 20395-20397 20406 20413-20414 20418-20420 20423 20428 20431 20436 20450-20451 20456 20458 20460-20462 20466 20472 20474-20475 21591 21597 21762-21763 21766 21772 21774 21788-21789 21823-21824 21832 21841 21849 21851 21857 21870 21875 21883-21885 21887 21908-21909 21916 21953 21955 21959 21965-21967 21970-21973 21975-21976 21978-21979 21981 21983 21991 22012 22015 22178 22184-22185 22187-22188 22340-22341 22349 22351 22356 22360-22361 22363-22366 22373 22384-22386 22388 22390-22391 22457 22491 22512-22513 22515-22516 22518 22651 22654 22717-22719 22740-22741 22743 22760 22826 22863 22881 22884 22887 22896 22898 22927 22938 22947 22957 22960 22962 23046 23056-23057 23059-23061 23065 23072-23073 23102-23104 23145-23147 23182-23183 23186-23187 23196-23198 23201-23203 23212-23214 23216-23218 23231 23234 23272 23274-23275 23295 23340-23341 23343 23352 23354-23355 23410 23416 23418 23428 23440 23470 23530-23532 23534-23535 24119 24121 24251 24332 24335 24338-24339 24345 25288-25290 25292 25294 25312-25313 25316 25329 25331-25332 25334-25335 25340-25341 25511 25517 25519 25528 25567 25583 25586-25589 25591-25592 25595 25690 25822-25823 25838 25842-25844 25847-25849 25851-25853 25855 25887 25902-25903 25906-25907 25909-25910 25913-25917 25919 25922 25926 25928 25930 25933-25935 25952-25954 25956 25958-25959 25976 25978-25981 25983 25988-25989 25991 25993 25995 25997-26000 26002 26005 26007-26008 26010-26011 26020 26022 26025-26028 26030-26033 26042 26045 26049 26051-26052 26054-26058 26068-26070 26072 26074-26076 26078 26080-26082 26085-26086 26088 26090 26092-26094 26098 26100-26101 26103 26105 26107-26110 26113-26115 26121 26142 26161-26163 26168-26169 26171 26173-26174 26177 26179-26182 26187 26189 26191-26192 26194 26196 26198-26199 26208-26210 26224 26226-26229 26231-26233 26236-26238 26243-26245 26247 26252-26253 26256 26258-26260 26262-26263 26268-26270 26272 26274-26275 26280 26282-26284 26287-26289 26291-26292 26294-26295 26297 26299 26304-26305 26307 26311-26312 26314 26319-26322 26324 26326 26328 26330 26332 26334 26336-26338 26341-26346 26348-26350 26352 26354-26355 26360 26363-26366 26368-26369 26372 26374-26376 26379-26380 26382 26385-26386 26390 26392 26394 26396 26400 26402-26406 26410 26413-26414 26425 26427-26428 26430 26432 26436-26437 26439-26441 26443-26445 26448-26449 26451 26454 26457-26460 26462-26463 26472-26474 26476-26478 26482 26488 26490 26494 26497 26500-26502 26512-26513 26516-26517 26519 26521 26523-26525 26528 26530 26532 26534-26535 26537 26539 26542-26543 26546-26547 26552-26554 26564-26565 26567 26572-26573 26575 26580-26581 26583-26585 26587 26589-26591 26602-26603 26606 26613-26614 26847 26863 26867 26869 26872-26874 26876 26878-26879 26885 26896 26909-26911 26933 26938 26941 26948 26950-26951 26961-26964 26966 26969-26973 26975-26977 26979 26984 26986 26988 26990-26992 26994-26996 26998-27000 27004 27007 27011 27013-27014 27018-27019 27021-27025 27027 27033-27038 27041 27043-27045 27047 27053-27054 27056-27058 27073-27077 27084-27086 27089-27091 27095-27098 27100 27103 27106-27108 27111 27113-27115 27118-27119 27121-27125 27127-27128 27130-27131 27134-27135 27183 27187 27189-27194 27196 27198-27199 27204-27206 27209 27211 27216-27217 27219 27229-27231 27260 27262 27269 27271 27273 27275-27278 27281-27283 27296 27298-27299 27316 27318-27319 27341-27343 27348-27350 27352-27354 27357 27359-27360 27363 27369-27370 27377-27379 27381-27383 27385-27388 27390-27391 27397-27398 27400 27402-27403 27405-27408 27410 27414-27415 27418-27419 27421-27424 27426-27427 27432-27434 27440 27442-27443 27461-27462 27464-27465 27467-27470 27473-27475 27477 27479 27481-27483 27492-27493 27495 27504-27506 27509-27512 27514 27521-27522 27524 27527 27529 27531 27548 27550 27579-27580 27582-27583 27589-27591 27593-27596 27598 27600-27602 27604 27607 27613-27614 27621-27626 27628-27629 27631-27632 27634-27638 27648-27650 27652-27653 27658-27659 27663 27666-27667 27671 27677-27681 27683-27685 27687 27689-27694 27700-27702 27704-27706 27712 27714 27717-27719 27724 27728 27731 27734-27737 27740 27743 27746-27748 27750-27753 27760 27762-27763 27766-27767 27769-27771 27774-27776 27778-27779 27782-27785 27788-27789 27791 27793-27794 27796 27798 27802 27805-27806 27808 27811 27816 27818-27819 27822 27827 27829 27831-27832 27835 27837-27839 27841-27842 27844-27845 27848-27849 27853-27857 27859-27861 27863-27864 27867 27877-27881 27883-27885 27887-27890 27898 27905-27907 27913 27915 27920-27921 27923 27926-27927 27933-27935 27937-27940 27942 27944 27946 27953-27955 27958-27959 27968 27970-27974 27976-27977 27985-27987 27993 27995 27997 28009-28012 28014 28016 28018 28024 28026-28027 28029 28033-28035 28040-28042 28048 28050-28053 28055 28060-28062 28070 28080-28082 28092-28093 28096 28099-28100 28103 28105-28110 28112 28114 28119-28121 28123 28125-28126 28129-28130 28136 28139-28141 28143-28144 28146-28147 28152 28154 28158-28161 28163 28165 28172 28174 28176 28178-28179 28185 28187 28194-28197 28199-28201 28203 28205-28209 28211 28213-28215 28218-28221 28223 28228 28230-28231 28234-28237 28239 28242-28246 28248 28250 28252-28253 28256-28257 28259-28262 28264 28266-28268 28270 28277-28278 28285 28287-28289 28291 28294-28295 28298-28299 28301-28302 28304-28305 28307 28313 28315-28316 28318-28320 28322-28323 28325-28326 28332 28334-28336 28338-28340 28342-28344 28346-28347 28350-28352 28354 28358 28360-28361 28363 28366-28369 28371-28372 28375 28383-28384 28386-28390 28392 28395 28400 28402-28403 28412-28413 28415 28420 28422-28424 28426 28428-28429 28432-28433 28436 28438 28440-28442 28444-28445 28451-28453 28455 28457-28462 28472 28474 28478-28480 28482-28485 28487 28493-28494 28496 28498-28501 28503 28505-28509 28517-28519 28521-28523 28526-28529 28531-28533 28535-28538 28544-28545 28551-28552 28554-28555 28565-28567 28577-28578 28584 28586 28588-28590 28592 28594-28595 28600-28602 28609-28610 28612 28614-28615 28621-28622 28624 28628 28630-28632 28636-28637 28639 28641-28642 28645-28648 28651 28657-28659 28662-28663 29776-29777 29782 30031 30033-30037 30044-30046 30064 30069 31144 31146 31150 31286 31289 31291-31294 31311 31313 31315-31316 31318-31319 31321-31323 31326 31331 31334-31335 31340 31342 31345-31346 31351 31354 31357-31359 31367 31369-31370 31376-31377 31379-31381 31383-31384 31386-31387 31393-31394 31396-31397 31401-31403 31405-31408 31410 31412-31414 31416 31418 31420 31422-31425 31430-31431 31440-31441 31449-31451 31456 31461-31462 31464-31465 31467 31469-31472 31474-31475 31481-31482 31485-31488 31522 31528 31530-31534 31546-31547 31550-31551 31598-31599 31603 31606-31609 31620-31622 31632 31634-31636 31638-31639 31652-31654 31656 31658-31660 31662-31663 31680 31682-31683 31688-31690 31702 31709-31710 31720-31721 31723 31881 31883 31886 31904-31905 31907-31908 32104 32106-32107 32390-32391 32397-32399 32403 32432-32433 32435-32436 32438-32439 32456-32457 32459-32460 32462 32473 32477-32479 32484 32486 32492 32494 32499 32519 32525 32528 32530-32531 32536-32538 32552-32553 32555 32557-32558 32641 32644 32648 32650 32672 32674 32684-32685 32687 32702 36703 36717-36719 36722-36723 36729-36730 36759 36763 36765-36766 36773-36775 36777-36781 36783 36785 36787-36790 36792-36794 36797-36798 36800-36802 36804-36805 36807 36812 36814 36817 36832 36834 36838 36840-36841 36846-36847 36851 36856 36858 36862-36863 40949-40951 40957-40959 45039 45045-45047 45049-45054 48877 48889-48891 48894 48989 48991 49009-49012 49014-49017 49019-49022 49077 49079 49085 49087 49094 49100-49101 49104 49106 49112 49118 49124 49128 49151 https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/469/2102?format=ascii default J/MNRAS/469/2102/table1 Data for the 20247 SDSS hydrogen-rich white dwarfs used in this work SimbadName Simbad column added by the CDS meta.id char recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int SDSS SDSS name (SDSSJHHMMSS.ss+DDMMSS.s) meta.id;meta.main char MPJ SDSS MJD-Plate-Fiber identifier meta.id char n_SDSS [*] * means same WDs observed in different plates meta.note char RAJ2000 Right ascension (J2000) deg pos.eq.ra;meta.main indexed DEJ2000 Declination (J2000) deg pos.eq.dec;meta.main indexed Teff Effective temperature K phys.temperature.effective int e_Teff rms uncertainty on Teff K stat.error;phys.temperature.effective int Mass Mass solMass phys.mass float e_Mass ? rms uncertainty on Mass solMass stat.error;phys.mass double nullable logg Surface gravity log(cm.s**-2) phys.gravity float e_logg ? rms uncertainty on logg log(cm.s**-2) stat.error double nullable Dist Distance pc pos.distance double e_Dist rms uncertainty on Dist pc stat.error double pmRA* ? Proper motion along RA, pmRA*cosDE mas/yr pos.pm;pos.eq.ra double nullable e_pmRA* ? rms uncertainty on pmRA* mas/yr stat.error;pos.pm;pos.eq.ra double nullable pmDE ? Proper motion along DE mas/yr pos.pm;pos.eq.dec double nullable e_pmDE ? rms uncertainty on pmDE mas/yr stat.error;pos.pm;pos.eq.dec double nullable RVfit Radial velocity km/s phys.veloc;pos.heliocentric double e_RVfit rms uncertainty on FVfit km/s stat.error double Vgrav Gravitational redshift km/s phys.veloc double S/N Spectral signal-to-noise ratio stat.snr double Age1 Age (using initial-to-final mass relations of Catalan et al., 2008MNRAS.387.1693C) Gyr time.age float e_Age1 Error on Age1 (lower value) Gyr stat.error double E_Age1 Error on Age1 (upper value) Gyr stat.error;stat.max float Age2 Age (using initial-to-final mass relations of Gesicki et al., 2014A&A...566A..48G) Gyr time.age float e_Age2 Error on Age2 (lower value) Gyr stat.error double E_Age2 Error on Age2 (upper value) Gyr stat.error;stat.max float Age3 Age (using initial-to-final mass relations of Ferrario et al., 2005MNRAS.361.1131F) Gyr time.age float e_Age3 Error on Age3 (lower value) Gyr stat.error double E_Age3 Error on Age3 (upper value) Gyr stat.error;stat.max float Sp Interactive spectrum from SDSS-DR12 meta.ref.url char