J/MNRAS/505/6051ivo://CDS.VizieR/J/MNRAS/505/6051doi:10.26093/cds/vizier.75056051CDSJimenez-Esteban F.M.Engels D.Aguado D.S.Gonzalez J.B.Garcia-Lario P.2024-08-21T20:18:02Z2021-07-09T15:04:43ZCDS support team

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

cds-question@unistra.frvariable-starsinfrared-photometryinfrared-sourcesWe present the results of a near-infrared (NIR) monitoring program carried out between 1999 and 2005 to determine the variability properties of the `Arecibo sample of OH/IR stars'. The sample consists of 385 IRAS-selected Asymptotic Giant Branch (AGB) candidates, for which their O-rich chemistry has been proven by the detection of 1612 MHz OH maser emission. The monitoring data was complemented by data collected from public optical and NIR surveys. We fitted the light curves obtained in the optical and NIR bands with a model using an asymmetric cosine function, and derived a period for 345 sources ~90% of the sample). Based on their variability properties, most of the Arecibo sources are classified as long-period large-amplitude variable stars (LPLAV), 4% as (candidate) post-AGB stars, and 3% remain unclassified although they are likely post-AGB stars or highly obscured AGB stars. The period distribution of the LPLAVs peaks at ~400d, with periods between 300 and 800d for most of the sources, and has a long tail up to ~2100d. Typically, the amplitudes are between 1 and 3 mag in the NIR and between 2 and 6 mag in the optical. We find correlations between periods and amplitudes, with larger amplitudes associated to longer periods, as well as between the period and the infrared colours, with the longer periods linked to the redder sources. Among the post-AGB stars, the light curve of IRAS 19566+3423 was exceptional, showing a large systematic increase (>0.4mag/yr) in K-band brightness over 7 years.2021MNRAS.505.6051Jhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/505/6051CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/431/779 : Optical/near-IR atlas of OH/IR stars (Jimenez-Esteban+, 2005)J/A+A/446/773 : GLMP sample of galactic OH/IR stars (Jimenez-Esteban+, 2006)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/505/6051https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/505/6051http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/505/6051https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/505/6051https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/505/6051http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/505/6051GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/505/6051/table1 (Arecibo sources positions and classifications)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/505/6051/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/505/6051/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/505/6051/table1?GETtext/xml+votable180.050000true16.6084208312.598119440.0055555555555555565/7583 7676 6/181 194 631 2203 4788 5647 8297 8532 12300 12329 12334 12363 12686 12703 12706 12802 12828 12833 12855 12909 12936 12939-12940 12944 12952 12954 12963 12965 12968-12969 12971-12972 12974 12976 12979 12981-12982 12985 12987-12988 12993 12998-12999 13038 13040 13046-13047 13049-13050 13053 13072 13191-13192 13204 13207 13211 13216 13230 13236 13243 13245 13247 13280 13498 13514 13696 14336-14337 14342 14344 14346 14348 14352 14355 14359 14362-14363 14371 14373 14375 14391 14399 14403 14406 14408 14413 14415 14418-14419 14425 14428 14433-14434 14437 14440 14452-14453 14459 14471 14492 14530 14546 14549-14550 14564 14567 14597 14607 14614 14629 14632 14640 14657 14721 18364 19118 19279 19309 20156 21931 22243 22434 23327 23471 23640 23801 23935 24098 24167 24356 24466 28113 30123 30159 30189 30207 30298 30310 30313 30316 30319 30323 30330-30331 30358-30359 30363-30364 30367 30398 30400 30402 30404-30405 30407 30410 30413-30417 30419 30421 30423-30424 30426 30428-30430 30434 30437 30439 30449-30450 30452 30457 30460 30462 30465 30476 30481 30497 30500 30503-30504 30511-30512 30524 30526-30527 30543 30568-30570 30573 30578 30581 30591 30594 30597 30599-30600 30602 30605-30610 30614 30616-30618 30620-30621 30624-30625 30627-30629 30631 30633 30635-30637 30640-30641 30643-30646 30648 30653-30654 30656 30659 30661-30663 30665-30666 30671 30674 30684 30687 30690-30691 30693 30699 30701 30713-30715 30719 31086 31088 31190 31464 31552 31564 31766 31814-31815 31820 31826-31827 31832-31833 31837 31840 31849 31862 31886 31944 32002-32003 32005 32007 32019-32020 32022-32023 32064 32067-32069 32073-32074 32076 32080-32081 32092-32093 32101 32110 32182 32204 32221 32314 32439 32519 32527 32543 32621 32661 327237.952274030004205e-20 1.7798557115773645e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/505/6051?format=asciiInfrareddefaultJ/MNRAS/505/6051/table1Arecibo sources positions and classificationsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIRASIRAS name (HHMMm+DDMM)meta.id;meta.maincharONameOther namemeta.idcharRAICRSICRS (Hipparcos) Right Ascension (J2000.0)degpos.eq.ra;meta.mainDEICRSICRS (Hipparcos) Declination (J2000.0 )degpos.eq.dec;meta.mainCRefCoordinates Source (AllWISE or 2MASS)meta.bibcharGroup[1/4] Flag for groups (1)meta.code.errorintSimbadSimbad column added by the CDSmeta.ref.urlcharJ/MNRAS/505/6051/table3Near-IR photometryrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIRASIRAS name (HHMMm+DDMM)meta.id;meta.maincharJDJulian daydtime.epochintindexedFilter[JHK] NIR filtermeta.id;instr.filtercharmagObserved magnitude in Filtermagphot.magfloate_magObserved magnitude errormagstat.error;phot.magfloatOriginOrigin of the data: NIR-MP; 2MASS; DENIS; UKIDDSmeta.bibcharJ/MNRAS/505/6051/table5Observed variability propertiesAmpO? Observational amplitude in the opticalmagsrc.var.amplitudefloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIRASIRAS name (HHMMm+DDMM)meta.id;meta.maincharo_Jmag? Number of J band photometric measurementsmeta.numberintnullableAmpJ? Observational amplitude in the J bandmagsrc.var.amplitudefloatnullableJmagMean? Observational mean magnitude in the J bandmagphot.mag;em.IR.Jfloatnullableo_Hmag? Number of H band photometric measurementsmeta.numberintnullableAmpH? Observational amplitude in the H bandmagsrc.var.amplitudefloatnullableHmagMean? Observational mean magnitude in the H bandmagphot.mag;em.IR.Hfloatnullableo_Kmag? Number of K band photometric measurementsmeta.numberintnullableAmpK? Observational amplitude in the K bandmagsrc.var.amplitudefloatnullableKmagMean? Observational mean magnitude in the K bandmagphot.mag;em.IR.Kfloatnullableo_Omag? Number of optical photometric measurementsmeta.numberintnullableOmagMean? Observational mean magnitude in the opticalmagphot.mag;em.optfloatnullableSurvey[ABCDEG] Source of optical data (1)meta.bibcharJ/MNRAS/505/6051/table6Result of the light curves fittingrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIRASIRAS name (HHMMm+DDMM)meta.id;meta.maincharBands[OJHK Lit] Band used for the combined period (1)instr.bandpasscharPFinal period of the periods in the individual bands listed in 'Bands' or from the literature 'Lit'dtime.periodinte_P? Final period errordstat.errorintnullableFitLCO[SA] Type of optical light curve fit (2)meta.notecharFitPerO? Fitted optical perioddtime.period;meta.modelledintnullablee_FitPerO? Fitted optical period errordstat.errorintnullableFitAmpO? Fitted optical light curve amplitudemagsrc.var.amplitude;meta.modelledfloatnullableFitOmagMean? Fitted optical light curve mean magnitudemagphot.mag;em.optfloatnullableFitAsyFactO? Fitted optical light curve asymmetric factorstat.fit.paramfloatnullableFitt0O? Fitted optical band t0 Julian Daydtime.epochintnullableFitLCJ[SA] Type of J band light curve (2)phot.flux.density;em.IR.JcharFitPerJ? Fitted J band perioddtime.period;meta.modelledintnullablee_FitPerJ? Fitted J band period errordstat.errorintnullableFitAmpJ? Fitted J band light curve amplitudemagsrc.var.amplitude;meta.modelledfloatnullableFitJmagMean? Fitted J band fitted light curve mean magnitudemagphot.mag;em.IR.JfloatnullableFitAsymFactJ? Fitted J band light curve asymmetric factorphot.flux.density;em.IR.JdoublenullableFitt0J? Fitted J band t0 Julian Daydtime.epochintnullableFitLCH[SA] Type of H band light curve (2)phot.flux.density;em.IR.HcharFitPerH? Fitted H band perioddtime.period;meta.modelledintnullablee_FitPerH? Fitted H band period errordstat.errorintnullableFitAmpH? Fitted H band light curve amplitudemagsrc.var.amplitude;meta.modelledfloatnullableFitHmagMean? Fitted H band fitted light curve mean magnitudemagphot.mag;em.IR.HfloatnullableFitAsymFactH? Fitted H band light curve asymmetric factorphot.flux.density;em.IR.HdoublenullableFitt0H? Fitted H band t0 Julian Daydtime.epochintnullableFitLCK[SA] Type of K band light curve (2)phot.mag;em.IR.KcharFitPerK? Fitted K band perioddtime.period;meta.modelledintnullablee_FitPerK? Fitted K band period errordstat.errorintnullableFitAmpK? Fitted K band light curve amplitudemagsrc.var.amplitude;meta.modelledfloatnullableFitKmagMean? Fitted K band fitted light curve mean magnitudemagphot.mag;em.IR.KfloatnullableFitAsymFactK? Fitted K band light curve asymmetric factorphot.mag;em.IR.KdoublenullableFitt0K? Fitted K band t0 Julian Daydtime.epochintnullable