J/A+A/446/773ivo://CDS.VizieR/J/A+A/446/773doi:10.26093/cds/vizier.34460773CDSJimenez-Esteban F.M.Garcia-Lario P.Engels D.Perea Calderon J.V.2017-06-26T11:49:30Z2007-01-01T13:32:16ZCDS support team

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

cds-question@unistra.frinfrared-sourcesvariable-starsinfrared-photometryWe present optical and near-infrared finding charts taken from the DSS and 2MASS surveys of 94 IRAS sources selected from the GLMP catalogue, and accurate astrometry (~0.2") for most of them. Selection criteria were very red IRAS colours representative for OH/IR stars with optically thick circumstellar shells and the presence of variability according to the IRAS variability index (VAR>50). The main photometric properties of the stars in this `GLMP sample' are presented, discussed and compared with the correspondent properties of the `Arecibo sample' of OH/IR stars studied nearlier. We find that 37% of the sample (N=34) has no counterpart in the 2MASS, implying extremely high optical depths of their shells. Most of the sources identified in the 2MASS are faint (K>~8) and are of very red colour in the near-infrared, as expected. The brightest 2MASS counterpart (K=5.3mag) was found for IRAS18299-1705. Its blue colour H-K=1.3 suggests that IRAS18299-1705 is a post-AGB star. Few GLMP sources have faint but relatively blue counterparts. They might be misidentified field stars or stars that recently experienced a drop of their mass loss rates. The `GLMP sample' in general is made of oxygen-rich AGB stars, which are highly obscured by their circumstellar shells. They belong to the same population as the reddest OH/IR stars in the `Arecibo sample'.2006A&A...446..773Jhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/446/773CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/125 : IRAS catalogue of Point Sources, Version 2.0 (IPAC 1986)II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)V/114 : MSX6C Infrared Point Source Catalog (Egan+ 2003)J/A+AS/126/479 : NIR photometry of IRAS sources. III (Garcia-Lario+, 1997)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/446/773https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/446/773http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/446/773https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/446/773https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/446/773http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/446/773GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/446/773/table4 (Astrometric information for the sources for which a near infrared counterpart was not found)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/446/773/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/446/773/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/446/773/table4?GETtext/xml+votable180.050000true136.01375-50.5255560.005555555555555556Cone search capability for table J/A+A/446/773/hasIR (Astrometry and near-IR photometry of GLMP sources for which a near infrared counterpart was found)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/446/773/hasIR?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/446/773/hasIR?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/446/773/hasIR?GETtext/xml+votable180.050000true131.0181667-51.46163890.0055555555555555566/28714 28723 28728-28729 28733-28734 28765 28777 28787 28797 28800 28803 28807 28823-28824 28842 28845 28853-28854 28856 28865 28869 28883 28886 28892 28897 28905 28952 29072 29094 29099 29109-29110 29119 29147 29205 29248 29303 29444 29447 29455 29507-29508 29511 29522 29528 29543 29548 29556 29562 29662 30219 30260 30268 30277 30306 30348 30356 30430 30619 30647 30655 30716 37813 37831 37894 41597 41647 41788 41803 41819 42160 42216 42322 42362 42365 42396 42443 42445 42451 42453 42458 42483 42496 42519 42545 42833-42834 43009https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/446/773?format=asciiInfrareddefaultJ/A+A/446/773/table4Astrometric information for the sources for which a near infrared counterpart was not foundrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGLMPGLMP numbermeta.id;meta.mainintIRASIRAS namemeta.idcharf_IRAS[*] IRAS coordinatesmeta.codecharRAJ2000MSX right ascension (J2000)pos.eq.ra;meta.mainDEJ2000MSX declination (J2000)pos.eq.dec;meta.mainoRA.MSX? Relative distance between MSX and IRAS (RA)arcsecpos.eq.ra;arith.diffintnullableoDE.MSX? Relative distance between MSX and IRAS (Dec)arcsecpos.eq.dec;arith.diffintnullableMSX6CGMSX name (MSX6C GLLL.llll+BB.bbbb)meta.idcharGLMPdataData from the Garcia-Lario et al. catalog (J/A+AS/126/479)meta.ref.urlcharSimbadSimbad column added by the CDScharJ/A+A/446/773/hasIRAstrometry and near-IR photometry of GLMP sources for which a near infrared counterpart was foundHmagH magnitudemagphot.mag;em.IR.HfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGLMPGLMP number (Cat. J/A+AS/126/479)meta.id;meta.mainintIRASIRAS namemeta.idchar2M[*] Tentative 2MASS identificationmeta.codecharRAJ20002MASS right ascension (J2000)pos.eq.ra;meta.mainDEJ20002MASS declination (J2000)pos.eq.dec;meta.mainoRA.2MRelative distance between 2MASS and IRAS (RA)arcsecpos.eq.ra;arith.diffintoDE.2MRelative distance between 2MASS and IRAS (Dec)arcsecpos.eq.dec;arith.diffintoRA.MSX? Relative distance between MSX and IRAS (RA)arcsecpos.eq.ra;arith.diffintnullableoDE.MSX? Relative distance between MSX and IRAS (Dec)arcsecpos.eq.dec;arith.diffintnullableMSX6CGMSX name (MSX6C GLLL.llll+BB.bbbb)meta.idcharOpt[**] Shows optical counterpartmeta.notecharGLMPdataData from the Garcia-Lario et al. catalog (J/A+AS/126/479)meta.ref.urlchar2MASS2MASS closest sources (from Catalog II/246)meta.ref.urlcharSimbadSimbad column added by the CDScharn_Jmag[* ] Accuracy of the J photometry is affected by blending according to 2MASS cataloguemeta.notecharf_Jmag[* ] J photometry obtained from the 2MASS imagesmeta.codecharl_JmagUpper or lower limit indicatormeta.code.error;phot.mag;em.IR.JcharJmagJ magnitudemagphot.mag;em.IR.Jfloate_Jmag? J magnitude uncertaintymagstat.error;phot.mag;em.IR.Jfloatnullablen_Hmag[* ] Accuracy of the H photometry is affected by blending according to 2MASS cataloguemeta.notecharf_Hmag[* ] H photometry obtained from the 2MASS imagesmeta.codecharl_HmagUpper or lower limit indicatormeta.code.error;phot.mag;em.IR.Hchare_Hmag? H magnitude uncertaintymagstat.error;phot.mag;em.IR.Hfloatnullablen_Kmag[* ] Accuracy of the K photometry is affected by blending according to 2MASS cataloguemeta.notecharf_Kmag[* ] K photometry obtained from 2MASS imagesmeta.codecharl_KmagUpper or lower limit indicatormeta.code.error;phot.mag;em.IR.KcharKmagK magnitudemagphot.mag;em.IR.Kfloate_Kmag? K magnitude uncertaintymagstat.error;phot.mag;em.IR.Kfloatnullable