J/ApJS/264/38ivo://CDS.VizieR/J/ApJS/264/38doi:10.26093/cds/vizier.22640038CDSMei Y.Song S.-M.Liu J.-T.Hyland L.J.Chen X.2023-08-28T08:48:18Z2023-04-05T12:46:15ZCDS support team

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

cds-question@unistra.frbe-starspre-main-sequence-starsyoung-stellar-objectsgiant-starsinfrared-photometryvariable-starsvisible-astronomyLight variability is an essential attribute of young stellar objects (YSOs) at the pre-main-sequence (PMS) stage, which can be treated as an indicator to trace star formation. We present a statistical study on the infrared NEOWISE variability of new and large-sized PMS stars as well as Herbig Ae/Be (HAeBe) and classical Be (CBe) stars identified from Gaia Data Release 2. A total of 3792 (including 714 HAeBe), 417, and 473 NEOWISE variable sources were detected from the catalog of 8470 PMS (including 1361 HAeBe), 693 CBe, and 1309 uncertain (possibly belonging to either HAeBe or CBe) stars, respectively. We found that 80% of the PMS variables are dominated by irregular infrared variability, whereas variables in the CBe and uncertain categories exhibit comparable contributions from secular (linear, curved, and periodic) and stochastic (burst, drop, and irregular) variables. This, in combination with infrared W1-W2 colors, W4 luminosities, and the spectral energy distribution slope at near- and mid-infrared wavelengths, suggests different evolutionary stages of the PMS (including HAeBe), uncertain, and CBe stars, from less to more evolved. A statistical analysis of variable source properties (e.g., period and fractional amplitude) further reveals a potential sequence possibly associated with disk evolution for different types of light curves (from linear, to curved, periodic, stochastic, and nonvariable stars). Possible mechanisms for the variable sources are suggested to be related to either extinction via circumstellar matter, or contribution of multiple systems surrounding the YSOs, as opposed to variable accretion (e.g., episodic accretion or accretion burst).2023ApJS..264...38Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/264/38CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/349/619 : UBVRI light curves of AA Tau in 1995 (Bouvier+, 1999)J/AJ/121/3160 : JHK photometry near the Trapezium region (Carpenter+, 2001)J/A+A/379/564 : Vega-type & PMS stars UBVRI phot-polarimetry (Oudmaijer+ 2001)J/AJ/131/1574 : Infrared photometry of IC348 members (Lada+, 2006)J/ApJ/638/897 : IR phot. in Trumpler 37 and NGC 7160 (Sicilia-Aguilar+, 2006)J/AJ/136/2413 : Galactic midplane Spitzer red sources (Robitaille+, 2008)J/MNRAS/386/313 : IR observations of Mira variables (Whitelock+, 2008)J/A+A/557/A77 : VR light curves of AA Tau in 2007-2013 (Bouvier+, 2013)J/AJ/147/82 : Monitoring of disk-bearing stars in NGC 2264 (Cody+, 2014)J/ApJ/792/30 : NEOWISE magnitudes for near-Earth objects (Mainzer+, 2014)J/A+A/610/A77 : Orion Integral Filament ALMA+IRAM30m N2H+(1-0) (Hacar+, 2018)J/A+A/620/A128 : Gaia DR2 study of Herbig Ae/Be stars (Vioque+, 2018)J/ApJ/877/110 : SPIRITS cat. of IR long period variables (Karambelkar+, 2019)J/A+A/638/A21 : New Herbig Ae/Be & classical Be stars catalog (Vioque+, 2020)J/ApJ/920/132 : NEOWISE 6.5yr variability in YSOs (Park+, 2021)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/264/38https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/264/38http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/264/38https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/264/38https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/264/38http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/264/38GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/264/38/linear (Parameters of linear light curve sources for the PMS (table B1), Uncertain (table B2) and CBe (table B3) samples)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/264/38/linear?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/264/38/linear?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/264/38/linear?GETtext/xml+votable180.050000true3.547750661.00362310.005555555555555556Cone search capability for table J/ApJS/264/38/sin (Parameters of sin light curve sources for the PMS (table C1), Uncertain (table C2) and CBe (table C3) samples)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/264/38/sin?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/264/38/sin?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/264/38/sin?GETtext/xml+votable180.050000true0.003762863.67911610.005555555555555556Cone search capability for table J/ApJS/264/38/sinlin (Parameters of sin+linear variable sources for the PMS (table D1), Uncertain (table D2) and CBe (table D3) samples)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/264/38/sinlin?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/264/38/sinlin?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/264/38/sinlin?GETtext/xml+votable180.050000true0.400024764.64389690.005555555555555556Cone search capability for table J/ApJS/264/38/stoch (Parameters of stochastic variable sources for the PMS (table E1), Uncertain (table E2) and CBe (table E3) samples)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/264/38/stoch?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/264/38/stoch?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/264/38/stoch?GETtext/xml+votable180.050000true0.042671466.34893940.005555555555555556Cone search capability for table J/ApJS/264/38/tablea1 (Multi-epoch NEOWISE Photometry for the PMS sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/264/38/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/264/38/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/264/38/tablea1?GETtext/xml+votable180.050000true0.003762863.67911610.005555555555555556Cone search capability for table J/ApJS/264/38/tablea2 (Multi-epoch NEOWISE Photometry for the Uncertain sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/264/38/tablea2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/264/38/tablea2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/264/38/tablea2?GETtext/xml+votable180.050000true0.251658160.44600860.005555555555555556Cone search capability for table J/ApJS/264/38/tablea3 (Multi-epoch NEOWISE Photometry for the CBe sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/264/38/tablea3?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/264/38/tablea3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/264/38/tablea3?GETtext/xml+votable180.050000true0.079813161.153650.005555555555555556Cone search capability for table J/ApJS/264/38/tablef1 (Parameters of the AGB candidate variables (see Section 4.4))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/264/38/tablef1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/264/38/tablef1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/264/38/tablef1?GETtext/xml+votable180.050000true1.571396761.56589860.0055555555555555563/228 4/191 206 894 901 903 917-918 961 964-965 976-977 980 1498 5/320 324-326 333 335-336 338 346 358 364 368 413 445 448 450 453 456-457 482-483 488 490 751 757-760 762 796 799 813 815 817-822 830 832 834 905 907-910 912-913 928-930 936 3240 3242-3243 3247 3258 3262 3327 3514 3517-3519 3561-3565 3567 3570-3571 3573 3575 3580-3582 3584-3586 3588-3590 3597 3601-3602 3609-3610 3666-3667 3677-3679 3840 3842-3843 3848-3850 3852 3868-3869 3912-3913 3916 3924-3925 5531 5534 5552-5554 5558 5560 5562 5566 5907 5909-5911 5916-5918 5940-5941 5943 5950 5996 5998-5999 6039 6047 6080 6090-6092 6094 6106 6112 6121 6124-6126 6128 6136 6138 7579-7580 7601 7605 7626 7651 7655 7657 7660 7671 7673-7674 7676 7679 8020 6/1109 1284-1285 1287 1289 1293 1295 1308-1309 1311-1314 1317 1319 1322-1323 1325 1328-1330 1336-1337 1339 1348 1350-1351 1356-1357 1376 1378-1379 1382 1388 1390 1412-1413 1416 1421 1423 1425-1428 1430-1431 1436 1438 1443 1445-1446 1450-1453 1455 1460 1464-1465 1467-1470 1514 1623 1629-1631 1661 1663 1745 1753 1756 1758-1759 1766 1773-1775 1779 1785-1786 1788-1790 1798-1799 1804 1807 1809-1811 1816-1817 1820-1821 1823 1832-1833 1835-1837 1839 1841-1844 1849 1852 1920 1922-1924 1926-1927 1936 1938 1944 1946 1956-1958 1965-1967 2933 2939 2942 2999 3001-3003 3020 3022-3024 3026 3045-3047 3052-3054 3139-3140 3142 3145 3153-3157 3159-3160 3162-3165 3167-3169 3174-3175 3178 3181-3182 3189-3190 3193-3195 3230-3231 3250-3251 3256 3258 3264 3267 3292 3294 3312-3314 3316 3324 3332 3334 3340 3342 3362 3364 3370 3456 3589-3591 3593 3595-3596 3598-3601 3603-3604 3606-3607 3609-3612 3614-3616 3618-3619 3627 3644-3645 3647 3656 3658-3660 3662-3663 3666 3680 3682-3684 3686 3689-3692 3725-3730 3732 3734-3736 3738-3739 3748-3750 3752-3753 3755-3758 3760 3776-3777 12936 12939-12940 12942 12952 12954-12955 12964-12965 12967 12978 12981 12983-12985 12987 13024 13026 13030 13036 13038-13039 13046 13052 13054-13055 13219 13225-13226 13229-13230 13240 13246 13288-13289 13291-13293 13295 13305-13307 13986 13990-13992 13994-13997 13999 14002-14003 14006 14008 14010-14012 14014-14015 14030-14031 14043 14046 14048-14049 14051-14054 14060-14061 14063 14066-14067 14187 14189-14190 14197-14201 14203 14205-14206 14217-14220 14226 14228-14229 14231-14234 14237-14239 14241-14242 14264 14266-14267 14275 14279 14289-14291 14297-14299 14332-14333 14335 14348-14350 14365-14369 14371-14373 14375 14384-14386 14397 14401-14403 14412-14413 14415 14432-14433 14435 14444 14446 14548-14549 14657 14659-14661 14663 14704 14706-14707 14720 14724 14736-14738 14740-14742 14784-14785 14788-14789 14800-14801 14804-14805 15365-15367 15404-15406 15412-15414 15416 15420-15422 15456 15458-15459 15461-15466 15469 15480-15481 15484-15485 15492 15656-15657 15661 15668-15670 15704 15708-15709 15712 15716 21638 21642 21671 22079 22107 22117 22121-22123 22128-22129 22131 22165 22167 22171 22173 22175 22196-22197 22199 22220-22221 22224 22226 22228 22231 22236 22238-22239 22244 22246-22247 22252-22253 22255-22256 22258-22259 22261-22263 22268 22271 22432 22434 22440 22442-22443 23573 23581 23617-23618 23620-23622 23625-23627 23632 23634 23649 23652-23653 23655 23660 23663 23678-23679 23757 23759 23768-23769 23781 23792 23794-23795 23798 23805-23806 23808 23810 23817-23820 23823 23841-23842 23844 23848 23850 23852 23854-23855 23858 23865-23866 23938-23941 23944-23945 23947-23948 23950 23954 23962-23964 23988 23990 24144 24147-24149 24151 24155 24181-24183 24277 24279 24285 24324-24325 24327 24329-24334 24336-24337 24339-24341 24343 24346-24347 24349 24352-24353 24355 24357-24359 24372 24374-24375 24380-24381 24392 24417 24419 24430 24452-24454 24457 24459-24460 24462-24464 24468 24470-24472 24474-24475 24477-24479 24481 24483 24489-24490 24492-24493 24495 24509-24511 24522 24526 24550 24556 28808 28819 28822 28838 28877 28899 28917 29112 29116 29160 29526 30274 30281 30298 30302 30310-30311 30313-30315 30324-30325 30327-30330 30332-30334 30359 30361 30363-30364 30366-30367 30389 30400-30401 30409 30412 30414-30416 30418 30425-30427 30430 30436-30437 30439 30449 30451-30452 30455 30496 30498 30503 30523 30526-30527 30570 30592-30593 30597-30600 30608 30610-30612 30614-30615 30618-30619 30625 30633 30635 30637 30639 30644 30646 30649-30654 30657-30659 30661 30663-30664 30666 30669 30674-30675 30680 30682 30689 30700 30702-30703 30710-30713 32004-32005 32021 32065 32067-32068 32070-32071 32076 32078-32079 32084 32087-32088 32092-32093 32095 32113 37335-37336 37367 37373 37745 37863 37893 37902 37905 37930 38018 38038 39244-39245 39254 39260 39268-39269 39277 39280-39282 39288 39364 39386 40618 41591 41655 41670 41674 41697 41810 42173 42190 42207 42213 42394 42416-424178.157980699529898e-21 6.513807192489934e-20https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/264/38?format=asciiOpticalInfrareddefaultJ/ApJS/264/38/linearParameters of linear light curve sources for the PMS (table B1), Uncertain (table B2) and CBe (table B3) samples_RAPositions (Epoch J2000) from Vioque+, 2020, J/A+A/638/A21 (table D1, "pms") (right ascension part)degpos.eq.ra;meta.main_DEPositions (Epoch J2000) from Vioque+, 2020, J/A+A/638/A21 (table D1, "pms") (declination part)degpos.eq.dec;meta.mainPhotDisplay the NEOWISE photometry measurements for this source (link to Tables A1, A2 or A3)meta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintOTpre-main-sequence (PMS), "uncertain" (or "either") and classical Be (CBe) samples from Vioque+ (2020, J/A+A/638/A21)src.classcharID[20/8463] Identifier (G1)meta.idintSlope[-0.0006/0.0008] Fitted slopespect.indexfloate_Slope[1.6e-6/9.8e-5] Uncertainty in Slopestat.errorfloatR2[0.56/1] The goodness of fitting valuestat.fit.goodnessfloatW1mag[6/14.3] Mean NEOWISE 3.4 micron band magnitudemagphot.mag;em.IR.3-4umfloate_W1mag[0.009/1] Uncertainty in W1magmagstat.error;phot.magfloatW2mag[3.9/13] Mean NEOWISE 4.6 micron band magnitudemagphot.mag;em.IR.4-8umfloate_W2mag[0.016/0.7] Uncertainty in W2magmagstat.error;phot.magfloatDelta[0.05/1.9] W2 band magnitude difference between maximum & minimummagphot.mag;stat.min;stat.maxfloatSI[11.3/604] Stetson indexsrc.var.indexfloatSD/sig[1.4/43] W2 band flux density curve SD/{sigma} valuestat.fit.omcfloatW4mag[-1.6/9.5] Vioque+ (2020, J/A+A/638/A21) WISE 22.2um band magnitudemagphot.flux.density;em.IR.15-30umfloatDist[114/13800]? Vioque+ (2020, J/A+A/638/A21) extracted distancepcpos.distancefloatnullableHAeBeSource is a HAeBe star? (only for PMS; Table B1)meta.codecharVarSource is variable? (only for PMS; Table B1)meta.code;src.varcharalpha[-2.3/2.11] SED slopespect.indexfloatStageEvolutionary stage classification from alphasrc.classcharGaiaDR2Gaia DR2 identifier (from Vioque+, 2020, J/A+A/638/A21, "pms" table)meta.id;meta.maincharLCInteractive LC plotmeta.ref.urlcharJ/ApJS/264/38/sinParameters of sin light curve sources for the PMS (table C1), Uncertain (table C2) and CBe (table C3) samplesGaiaDR2Gaia DR2 identifier (from Vioque+, 2020, J/A+A/638/A21, "pms" table)meta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintID[1/8433] Identifier (G1)meta.idintPer[632/29942] Fitted perioddtime.period;meta.modelledfloate_Per[11/7848] Uncertainty in Perdstat.errorfloatAmp[-7.6/9.5] Fitted amplitudemagsrc.var.amplitudefloate_Amp[0.002/1.4] Uncertainty in Ampmagstat.errorfloatR2[0.4/1] The goodness of fitting valuestat.fit.goodnessfloatW1mag[5.8/14.3] Mean NEOWISE 3.4um band magnitudemagphot.mag;em.IR.3-4umfloate_W1mag[0.008/1] Uncertainty in W1magmagstat.error;phot.magfloatW2mag[4.7/14] Mean NEOWISE 4.6um band magnitudemagphot.mag;em.IR.4-8umfloate_W2mag[0.01/1] Uncertainty in W2magmagstat.error;phot.magfloatDelta[0.04/4] W2 band magnitude difference between maximum & minimummagphot.mag;stat.min;stat.maxfloatSI[-16.3/1741] Stetson indexsrc.var.indexfloatSD/sig[1/62] W2 band flux density curve SD/{sigma} valuestat.fit.omcfloatDist[124.8/27700]? Vioque+ (2020, J/A+A/638/A21) extracted distancepcpos.distancefloatnullablealpha[-2.5/1.98] SED slopespect.indexfloat_RAPositions (Epoch J2000) from Vioque+, 2020, J/A+A/638/A21 (table D1, "pms") (right ascension part)degpos.eq.ra;meta.main_DEPositions (Epoch J2000) from Vioque+, 2020, J/A+A/638/A21 (table D1, "pms") (declination part)degpos.eq.dec;meta.mainPhotDisplay the NEOWISE photometry measurements for this source (link to Tables A1, A2 or A3)meta.ref.urlcharLCInteractive LC plotmeta.ref.urlcharOTpre-main-sequence (PMS), "uncertain" (or "either") and classical Be (CBe) samples from Vioque+ (2020, J/A+A/638/A21)src.classcharHAeBeSource is a HAeBe star? (only for PMS; Table C1)meta.codecharVarSource is variable? (only for PMS; Table C1)meta.code;src.varcharESSource is an evolved star? (only for PMS; Table C1) (G2)meta.codecharStageEvolutionary stage classification from alphasrc.classcharW4mag[-2.5/9.5] Vioque+ (2020, J/A+A/638/A21) WISE 22.2um band magnitudemagphot.flux.density;em.IR.15-30umfloatJ/ApJS/264/38/sinlinParameters of sin+linear variable sources for the PMS (table D1), Uncertain (table D2) and CBe (table D3) samplesGaiaDR2Gaia DR2 identifier (from Vioque+, 2020, J/A+A/638/A21, "pms" table)meta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintID[7/8464] Identifier (G1)meta.idintPer[371/20000] Fitted period (1)dtime.period;meta.modelledfloate_Per[3/4181] Uncertainty in Perdstat.errorfloatAmp[-1.5/16.5] Fitted amplitude (1)magsrc.var.amplitudefloate_Amp[0.002/5.8] Uncertainty in Ampmagstat.errorfloatSlope[-0.005/0.0008] Fitted slope (2)spect.indexfloate_Slope[2.2e-6/0.4] Uncertainty in Slopestat.errorfloatR2[0.49/1] The goodness of fitting valuestat.fit.goodnessfloatW1mag[6.6/14.3] Mean NEOWISE 3.4um band magnitudemagphot.mag;em.IR.3-4umfloate_W1mag[0.01/0.9] Uncertainty in W1magmagstat.error;phot.magfloatW2mag[5.3/13.5] Mean NEOWISE 4.6um band magnitudemagphot.mag;em.IR.4-8umfloate_W2mag[0.01/0.8] Uncertainty in W2magmagstat.error;phot.magfloatDelta[0.04/2.8] W2 band magnitude difference between maximum & minimummagphot.mag;arith.diff;stat.minfloatSI[4.6/783] Stetson indexsrc.var.indexfloatSD/sig[1.2/59.5] W2 band flux density curve SD/{sigma} valuestat.fit.omcfloatW4mag[0.9/9.5] Vioque+ (2020, J/A+A/638/A21) WISE 22.2um band magnitudemagphot.flux.density;em.IR.15-30umfloatDist[106/11100]? Vioque+ (2020, J/A+A/638/A21) extracted distancepcpos.distancefloatnullablealpha[-2.5/2.16] SED slopespect.indexfloat_RAPositions (Epoch J2000) from Vioque+, 2020, J/A+A/638/A21 (table D1, "pms") (right ascension part)degpos.eq.ra;meta.main_DEPositions (Epoch J2000) from Vioque+, 2020, J/A+A/638/A21 (table D1, "pms") (declination part)degpos.eq.dec;meta.mainStageEvolutionary stage classification from alphasrc.classcharPhotDisplay the NEOWISE photometry measurements for this source (link to Tables A1, A2 or A3)meta.ref.urlcharOTpre-main-sequence (PMS), "uncertain" (or "either") and classical Be (CBe) samples from Vioque+ (2020, J/A+A/638/A21)src.classcharHAeBeSource is a HAeBe star? (only for PMS; Table D1)meta.codecharVarSource is variable? (only for PMS; Table D1)meta.code;src.varcharESSource is an evolved star (only for PMS; Table D1) (G2)meta.codecharLCInteractive LC plotmeta.ref.urlcharJ/ApJS/264/38/stochParameters of stochastic variable sources for the PMS (table E1), Uncertain (table E2) and CBe (table E3) samplesGaiaDR2Gaia DR2 identifier (from Vioque+, 2020, J/A+A/638/A21, "pms" table)meta.id;meta.maincharHAeBeSource is a HAeBe star? (only for PMS; Table E1)meta.codecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintID[1/8470] Identifier (G1)meta.idintW1mag[2.69/15.2] Mean NEOWISE 3.4um band magnitudemagphot.mag;em.IR.3-4umfloate_W1mag[0.01/1.1] Uncertainty in W1magmagstat.error;phot.magfloatW2mag[1/14.1] Mean NEOWISE 4.6um band magnitudemagphot.mag;em.IR.4-8umfloate_W2mag[0.013/1.8] Uncertainty in W2magmagstat.error;phot.magfloatDelta[0.04/5.5] W2 band magnitude difference between maximum & minimummagphot.mag;arith.diff;stat.minfloatSI[20/1015.3] Stetson indexsrc.var.indexfloatSD/sig[0.6/107.5] W2 band flux density curve SD/{sigma} valuestat.fit.omcfloatW4mag[-3.31/9.7] Vioque+ (2020, J/A+A/638/A21) WISE 22.2um band magnitudemagphot.flux.density;em.IR.15-30umfloatDist[81.9/17289]? Vioque+ (2020, J/A+A/638/A21) extracted distancepcpos.distancefloatnullablealpha[-2.6/3.3] SED slopespect.indexfloat_RAPositions (Epoch J2000) from Vioque+, 2020, J/A+A/638/A21 (table D1, "pms") (right ascension part)degpos.eq.ra;meta.main_DEPositions (Epoch J2000) from Vioque+, 2020, J/A+A/638/A21 (table D1, "pms") (declination part)degpos.eq.dec;meta.mainOTpre-main-sequence (PMS), "uncertain" (or "either") and classical Be (CBe) samples from Vioque+ (2020, J/A+A/638/A21)src.classcharVarSource is variable? (only for PMS; Table E1)meta.code;src.varcharESSource is an evolved star (only for PMS; Table E1) (G2)meta.codecharStageEvolutionary stage classification from alphasrc.classcharPhotDisplay the NEOWISE photometry measurements for this source (link to Tables A1, A2 or A3)meta.ref.urlcharLCInteractive LC plotmeta.ref.urlcharSt-VarType of stochastic variable (burst, drop, and irregular)meta.notecharJ/ApJS/264/38/tablea1Multi-epoch NEOWISE Photometry for the PMS samplerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPDisplay the other parameters for this source if anymeta.ref.urlintnullableID[1/8470] Identifier (G1)meta.id;meta.mainintEpoch[56640/59560.5] Observation epoch; JD-2400000dtime.epoch;obsfloatindexedW1mag[1.37/15.81] NEOWISE 3.4um band magnitudemagphot.mag;em.IR.3-4umfloate_W1mag[0.001/2.3] Uncertainty in W1magmagstat.error;phot.magfloatW1Flux[0.15/87453] NEOWISE 3.4um band flux densitymJyphot.mag;em.IR.3-4umdoubleW2mag[0.3/15.2] NEOWISE 4.6um band magnitudemagphot.mag;em.IR.4-8umfloate_W2mag[0.001/2.3] Uncertainty in W2magmagstat.error;phot.magfloatW2Flux[0.14/128668] NEOWISE 4.6um band flux densitymJyphot.mag;em.IR.4-8umdouble_RAPositions (Epoch J2000) from Vioque+, 2020, J/A+A/638/A21 (table D1, "pms") (right ascension part)degpos.eq.ra;meta.mainindexed_DEPositions (Epoch J2000) from Vioque+, 2020, J/A+A/638/A21 (table D1, "pms") (declination part)degpos.eq.dec;meta.mainindexedJ/ApJS/264/38/tablea2Multi-epoch NEOWISE Photometry for the Uncertain samplerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPDisplay the other parameters for this source if anymeta.ref.urlintnullableID[1/1309] Identifier (G1)meta.id;meta.mainintEpoch[56640.2/59560.5] Observation epoch; JD-2400000dtime.epoch;obsfloatindexedW1mag[0.84/15.9] NEOWISE 3.4um band magnitudemagphot.mag;em.IR.3-4umfloate_W1mag[0.001/1.7] Uncertainty in W1magmagstat.error;phot.magfloatW1Flux[0.14/142108] NEOWISE 3.4um band flux densitymJyphot.mag;em.IR.3-4umdoubleW2mag[0.66/15.31] NEOWISE 4.6um band magnitudemagphot.mag;em.IR.4-8umfloate_W2mag[0.001/2] Uncertainty in W2magmagstat.error;phot.magfloatW2Flux[0.13/93023] NEOWISE 4.6um band flux densitymJyphot.mag;em.IR.4-8umdouble_RAPositions (Epoch J2000) from Vioque+, 2020, J/A+A/638/A21 (table "either") (right ascension part)degpos.eq.ra;meta.mainindexed_DEPositions (Epoch J2000) from Vioque+, 2020, J/A+A/638/A21 (table "either") (declination part)degpos.eq.dec;meta.mainindexedJ/ApJS/264/38/tablea3Multi-epoch NEOWISE Photometry for the CBe samplerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPDisplay the other parameters for this source if anymeta.ref.urlintnullableID[1/693] Identifier (G1)meta.id;meta.mainintEpoch[56642/59560.4] Observation epoch; JD-2400000dtime.epoch;obsfloatW1mag[2.23/13.6] NEOWISE 3.4um band magnitudemagphot.mag;em.IR.3-4umfloate_W1mag[0.002/1.4] Uncertainty in W1magmagstat.error;phot.magfloatW1Flux[1/39560] NEOWISE 3.4um band flux densitymJyphot.mag;em.IR.3-4umdoubleW2mag[1.79/14.8] NEOWISE 4.6um band magnitudemagphot.mag;em.IR.4-8umfloate_W2mag[0.0/1.7] Uncertainty in W2magmagstat.error;phot.magfloatW2Flux[0.2/33006] NEOWISE 4.6um band flux densitymJyphot.mag;em.IR.4-8umdouble_RAPositions (Epoch J2000) from Vioque+, 2020, J/A+A/638/A21 (table D2, "cBe") (right ascension part)degpos.eq.ra;meta.main_DEPositions (Epoch J2000) from Vioque+, 2020, J/A+A/638/A21 (table D2, "cBe") (declination part)degpos.eq.dec;meta.mainJ/ApJS/264/38/tablef1Parameters of the AGB candidate variables (see Section 4.4)VarSource is variable?meta.code;src.varcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDIdentifier (G1)meta.idintPer[325.4/1792.5] Fitted period (1)dtime.period;meta.modelledfloate_Per[1.6/90.5] Uncertainty in Perdstat.errorfloatAmp[-0.93/1.3] Fitted amplitude (1)magsrc.var.amplitudefloate_Amp[0.015/0.15] Uncertainty in Ampmagstat.errorfloatSlope[-0.0004/0.00013]? Fitted slope (2)spect.indexfloatnullablee_Slope[1.3e-5/8.2e-5]? Uncertainty in Slopestat.errorfloatnullableR2[0.5/1] The goodness of fitting valuestat.fit.goodnessfloatW1mag[2.8/14.1] Mean NEOWISE 3.4um band magnitudemagphot.mag;em.IR.3-4umfloate_W1mag[0.02/1.1] Uncertainty in W1magmagstat.error;phot.magfloatW2mag[1/13.6] Mean NEOWISE 4.6um band magnitudemagphot.mag;em.IR.4-8umfloate_W2mag[0.09/0.9] Uncertainty in W2magmagstat.error;phot.magfloatDelta[0.3/3.4] W2 band magnitude difference between maximum & minimummagphot.mag;arith.diff;stat.maxfloatSI[-8.2/662.2] Stetson indexsrc.var.indexfloatSD/sig[1/41.7] W2 band flux density curve SD/{sigma} valuestat.fit.omcfloatW4mag[-0.55/9.5] Vioque+ (2020, J/A+A/638/A21) WISE 22.2um band magnitudemagphot.flux.density;em.IR.15-30umfloatDist[277/11554]? Vioque+ (2020, J/A+A/638/A21) extracted distancepcpos.distancefloatnullableESSource is an evolved star (G2)meta.codecharGaiaDR2Gaia DR2 identifier (from Vioque+, 2020, J/A+A/638/A21, "pms" or "either" table)meta.id;meta.maincharPhotDisplay the NEOWISE photometry measurements for this source (link to Tables A1 or A2)meta.ref.urlcharLCInteractive LC plotmeta.ref.urlchar_RAPositions (Epoch J2000) from Vioque+, 2020, J/A+A/638/A21 (table D1, "pms" or "either" for flagged "E") (right ascension part)degpos.eq.ra;meta.main_DEPositions (Epoch J2000) from Vioque+, 2020, J/A+A/638/A21 (table D1, "pms" or "either" for flagged "E") (declination part)degpos.eq.dec;meta.mainf_IDE: Identifier from "either" table in Vioque+ 2020, J/A+A/638/A21 (otherwise from "pms")meta.codecharHAeBeSource is a HAeBe star?meta.codechar