J/AJ/155/38ivo://CDS.VizieR/J/AJ/155/38doi:10.26093/cds/vizier.51550038CDSGilhool S.H.Blake C.H.Terrien R.C.Bender C.Mahadevan S.,Deshpande R.2019-01-07T09:21:15Z2018-09-26T12:29:27ZCDS support team

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

cds-question@unistra.frdwarf-starsm-starslate-type-starseffective-temperaturechemical-abundancesWe present the results of a spectroscopic analysis of rotational velocities in 714 M-dwarf stars observed by the SDSS-III Apache Point Galactic Evolution Experiment (APOGEE) survey. We use a template-fitting technique to estimate v sin i while simultaneously estimating log g, [M/H], and T_eff_. We conservatively estimate that our detection limit is 8 km/s. We compare our results to M-dwarf rotation studies in the literature based on both spectroscopic and photometric measurements. Like other authors, we find an increase in the fraction of rapid rotators with decreasing stellar temperature, exemplified by a sharp increase in rotation near the M4 transition to fully convective stellar interiors, which is consistent with the hypothesis that fully convective stars are unable to shed angular momentum as efficiently as those with radiative cores. We compare a sample of targets observed both by APOGEE and the MEarth transiting planet survey and find no cases where the measured v sin i and rotation period are physically inconsistent, requiring sin i>1. We compare our spectroscopic results to the fraction of rotators inferred from photometric surveys and find that while the results are broadly consistent, the photometric surveys exhibit a smaller fraction of rotators beyond the M4 transition by a factor of ~2. We discuss possible reasons for this discrepancy. Given our detection limit, our results are consistent with a bimodal distribution in rotation that is seen in photometric surveys.2018AJ....155...38Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/155/38CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)J/A+A/331/581 : Rotation and activity in field M dwarfs (Delfosse+ 1998)J/ApJ/704/975 : Rotational velocities for M dwarfs (Jenkins+, 2009)J/MNRAS/407/1657 : Rotation velocities of dwarf M stars (Houdebine, 2010)J/AJ/143/93 : Rotational velocities in early-M stars (Reiners+, 2012)J/AJ/146/156 : APOGEE M-dwarf survey. I. First year velocitiesJ/MNRAS/432/1203 : Rotation periods of M-dwarf stars (McQuillan+, 2013)J/AJ/151/144 : ASPCAP weights for the 15 APOGEE chemical elementsJ/MNRAS/460/2611 : APOGEE K and M dwarfs (Schmidt+, 2016)J/MNRAS/463/1844 : M dwarfs rotation-activity relation (Stelzer+, 2016)J/ApJ/837/96 : Rotation-Activity Correlations in K-M dwarfs II.https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/155/38https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/155/38http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/155/38https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/155/38https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/155/38http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/155/38GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/155/38/table4 (v sin i results)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/155/38/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/155/38/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/155/38/table4?GETtext/xml+votable180.050000true0.19587616.4028110.0055555555555555565/362 764 2359 6648 7081 6/71 76 78 79 90 496 526 548 550 551 556 1240 1242 1247 1264 1299 1304 1320 1355 1357 1377 1380 1400 1414 1416 1419 1433 1446 1469 1470 1471 1536 1537 1538 1547 1631 1653 1697 1761 1763 1768 1777 1782 1788 1789 1806 1820 1823 1825 1828 1843 1844 1845 1930 1953 1958 1960 1965 1967 1973 1974 1979 1980 1981 2014 2535 2545 2782 2783 2805 2953 2954 2970 2972 2981 2993 2997 2999 3040 3045 3060 3061 3145 3148 3225 3227 3228 3229 3235 3238 3239 3263 3269 3280 3292 3293 3313 3315 3316 3635 3747 3756 3762 3767 3768 3775 3810 3821 3857 3859 3860 3862 3943 4033 4073 4077 4078 4079 4107 4108 4111 4122 4144 4253 4255 4672 4851 4857 4932 4944 5105 5106 5145 5181 5183 5218 5224 5225 5226 5228 5325 5327 5331 5337 5343 5367 5549 5562 5688 5893 5916 5917 5918 5972 6365 6367 6400 6401 6408 6535 6541 6545 6546 6552 6690 6995 6996 7262 7785 7787 8088 8089 8090 8092 8093 8094 8116 8331 8335 8356 8357 8372 8381 8424 8440 8441 8443 8572 8843 8846 8867 8869 8937 8939 8940 8942 8961 9067 9154 9157 9158 9201 9202 9429 9431 9433 9492 9493 9579 9599 9681 9684 9685 9686 9689 9694 9857 9860 9899 9905 10008 10011 10123 10197 10198 10204 10205 10305 10308 10312 10314 10332 10337 10359 10364 10365 10459 10486 10489 10494 10580 10581 10613 10676 10749 10851 10852 10857 10860 10861 10890 10891 10892 10895 10912 10914 10915 11097 11098 11121 11124 11166 11184 11185 11188 11190 11191 11204 11210 11394 11395 11427 11434 11740 11741 11764 11983 11996 12254 12276 12382 12405 12874 12906 12940 12958 12982 12990 12994 13046 13049 13155 13161 13162 13215 13224 13238 13280 13282 13307 13311 13751 13757 13920 13921 13930 13972 13974 14005 14007 14011 14016 14043 14048 14065 14068 14079 14140 14142 14225 14311 14320 14353 14354 14357 14361 14373 14385 14419 14426 14428 14430 14447 14450 14456 14457 14458 14467 14470 14482 14579 14582 14583 14681 14682 14683 14685 14703 14714 14716 14752 14772 14777 14781 14794 14825 14830 14930 14931 14939 14942 14964 14967 14968 14971 14972 15106 15129 15379 15382 15383 15385 15390 15414 15417 15418 15441 15446 15449 15469 15472 15475 15505 15514 15531 15533 15661 15686 15693 15694 15695 15696 15698 15717 15788 15831 15839 15861 15873 16110 18089 18422 18424 18427 18430 19014 19231 19266 19687 19696 19699 19702 19770 19775 19969 19975 21475 21672 21675 21676 21737 22106 22172 22199 22209 22221 22222 22231 22239 22250 22268 23207 23213 23225 23636 23640 23641 23657 23660 23663 23709 23735 23754 23768 23794 23801 23803 23823 23847 23853 23858 23861 23915 23943 23953 23986 23988 24155 24159 24180 24183 24190 24223 24266 24269 24282 24285 24288 24292 24337 24351 24360 24362 24373 24375 24383 24394 24395 24416 24417 24418 24434 24435 24442 24450 24457 24458 24459 24467 24489 24512 24513 24528 24547 26014 26015 26023 26072 26085 26097 26172 26188 26192 26266 26281 26288 26551 26571 26601 26602 26972 26974 26986 26996 27006 27007 27072 27093 27095 27122 27228 27426 27509 27635 27771 27859 27863 27869 27889 27890 27895 27911 27946 27971 27980 28032 28066 28067 28072 28074 28142 28241 28244 28253 28288 28289 28291 28329 28416 28462 28463 28480 28482 28483 28485 28486 28545 28549 28622 28643 28644 29564 29894 30184 30210 30254 30321 30331 30375 30384 30392 30416 30420 30428 30457 30618 30681 30710 30713 31147 31396 31578 31580 31582 31583 31605 31606 32071 32083 32089 32454 32460 32461 32466 32701 32702 32744 32746 40679 40820https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/155/38?format=asciidefaultJ/AJ/155/38/table4v sin i resultsSimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint2MASS2MASS identifier (JHHMMSSss+DDMMSSs)meta.id;meta.maincharRAJ2000Right Ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainTeff-A[2610/3999] ASPCAP derived effective temperature (1)Kphys.temperature.effectiveintTeff-V[2600/4000] VFIT derived effective temperature (2)Kphys.temperature.effectiveint[M/H][-1.5/0.5] VFIT derived metallicity (2)log(Sun)phys.abund.Zfloatlogg[4.5/5.5] VFIT derived log surface gravity (2)log(cm.s**-2)phys.gravityfloatl_vsini[<] Limit flag on vsinimeta.code.error;phys.veloc.rotatcharvsini[8/52.8] VFIT derived projected rotation velocity (2)km/sphys.veloc.rotatfloate_vsini[0/2.7]? Uncertainty in vsinikm/sstat.error;phys.veloc.rotatfloatnullable2MDisplay the 2MASS data (Cutri et al. 2003, Cat. II/246)meta.ref.urlchar