J/A+A/709/A143ivo://CDS.VizieR/J/A+A/709/A143doi:10.26093/cds/vizier/bc-p5/lbedCDSAlonso-Hernandez J.Sanchez Contreras C.Sahai R.Sanz-Forcada J.2026-05-19T14:19:57Z2026-05-12T08:50:48ZCDS support team

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

cds-question@unistra.frlate-type-starsphotometryinfrared-astronomyvisible-astronomyRoughly spherical envelopes around asymptotic giant branch (AGB) stars transform into the highly-asymmetric morphologies observed in planetary nebulae. The complex processes suffered in this metamorphosis are not yet completely understood. However, binarity emerges as a strong shaping factor, although the identification of binary companions in AGB stars is observationally challenging. The presence of ultraviolet (UV) excesses in AGB stars has been suggested as a potential indicator of binarity. In a first study, we characterised the properties of the gas component in the circumstellar envelopes surrounding a sample of 29 AGB stars with UV excesses. Now we intend to complement this information with an analysis of the dust component and compare the estimated parameters with those previously inferred from larger samples of AGB stars. We modelled the spectral energy distributions of the sample using dust radiative transfer models. In some cases, we complemented the analysis with Herschel/PACS radial surface brightness profiles. We derived mass-loss rates and gas-to-dust ratios, which are in the typical ranges for AGB stars. We found that the stellar and mass-loss parameters follow similar trends than those presented in the literature. There is an anticorrelation between the gas-to-dust ratio and the UV emission, although it is weaker than its correlations with pulsation and mass-loss. We also estimated the dust attenuation produced by the dust at UV wavelengths and describe its effects on the intrinsic UV emission. Stellar and mass-loss parameters of UV emitting AGB stars follow similar trends as found for larger samples of AGB stars. High-angular resolution observations are required to explore the dust forming regions and identify the presence of stellar companions. Circumstellar dust attenuation might play a dominant role in the observed UV emission, and needs to be accounted to estimate the intrinsic UV emission.2026A&A...709A.143Ahttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/709/A143CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-tohttps://svo2.cab.inta-csic.es/theory/fps/ : Spanish Virtual Observatoryhttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/709/A143https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/709/A143http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/709/A143https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/709/A143https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/709/A143http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/709/A143GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/709/A143/tablee1 (Employed photometry for the SED)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/709/A143/tablee1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/709/A143/tablee1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/709/A143/tablee1?GETtext/xml+votable180.050000true244.3139659.755020.005555555555555556Cone search capability for table J/A+A/709/A143/tablee2 (Summary of photometric fluxes estimated from the individual Herschel PACS observations)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/709/A143/tablee2?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/709/A143/tablee2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/709/A143/tablee2?GETtext/xml+votable180.050000true244.3139659.755020.0055555555555555566/3462 4172 4290 4635 4780 5132 5574 5647 7277 7531 7619 7758 9137 9258 9782 10103 10696 11519 11544 13845 19950 20212 21854 21948 26415 27301 27788 36222 367651.1655134642791134e-21 4.920466254354166e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/709/A143?format=asciiOpticalInfrareddefaultJ/A+A/709/A143/tablee1Employed photometry for the SEDrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSourceSource namemeta.id;meta.maincharprimarySimbadNameSimbad column added by the CDSmeta.idcharnullableT2indicates PACS fluxes estimated in table 2meta.ref.urlcharRAJ2000Right Ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainChemChemical type (O for O-rich and C for C-rich)src.classcharFB? Flux in Johnson B bandJyphot.flux.density;em.opt.Bfloatnullablee_FB? Uncertainty in FBJystat.errorfloatnullableFV? Flux in Johnson V bandJyphot.flux.density;em.opt.Vfloatnullablee_FV? Uncertainty in FVJystat.errorfloatnullableFBP? Flux in Gaia BP bandJyphot.flux.density;em.opt.Bfloatnullablee_FBP? Uncertainty in FBPJystat.errorfloatnullableFG? Flux in Gaia G bandJyphot.flux.density;em.optfloatnullablee_FG? Uncertainty in FGJystat.errorfloatnullableFRP? Flux in Gaia RP bandJyphot.flux.density;em.opt.Rfloatnullablee_FRP? Uncertainty in FRPJystat.errorfloatnullableFJ? Flux in 2MASS J bandJyphot.flux.density;em.IR.Jfloatnullablee_FJ? Uncertainty in FJJystat.errorfloatnullableFH? Flux in 2MASS H bandJyphot.flux.density;em.IR.Hfloatnullablee_FH? Uncertainty in FHJystat.errorfloatnullableFKs? Flux in 2MASS Ks bandJyphot.mag;em.IR.Kfloatnullablee_FKs? Uncertainty in FKsJystat.errorfloatnullableFIRAS12? Flux in IRAS 12 micron bandJyphot.flux.density;em.IR.8-15umfloatnullablee_FIRAS12? Uncertainty in FIRAS12Jystat.errorfloatnullableFIRAS25? Flux in IRAS 25 micron bandJyphot.flux.density;em.IR.15-30umfloatnullablee_FIRAS25? Uncertainty in FIRAS25Jystat.errorfloatnullableFIRAS60? Flux in IRAS 60 micron bandJyphot.flux.density;em.IR.30-60umfloatnullablee_FIRAS60? Uncertainty in FIRAS60Jystat.errorfloatnullablel_FIRAS100Limit flag on FIRAS100meta.code.errorcharFIRAS100? Flux in IRAS 100 micron bandJyphot.flux.density;em.IR.60-100umfloatnullablee_FIRAS100? Uncertainty in FIRAS100Jystat.errorfloatnullableFAKARI9? Flux in AKARI 9 micron bandJyphot.flux.density;em.IR.8-15umfloatnullablee_FAKARI9? Uncertainty in FAKARI9Jystat.errorfloatnullableFAKARI18? Flux in AKARI 18 micron bandJyphot.flux.density;em.IR.15-30umfloatnullablee_FAKARI18? Uncertainty in FAKARI18Jystat.errorfloatnullablel_FAKARI65Limit flag on FAKARI65meta.code.errorcharFAKARI65? Flux in AKARI 65 micron bandJyphot.flux.density;em.IR.30-60umfloatnullablee_FAKARI65? Uncertainty in FAKARI65Jystat.errorfloatnullableFAKARI90? Flux in AKARI WIDE-S bandJyphot.flux.density;em.IR.60-100umfloatnullablee_FAKARI90? Uncertainty in FAKARI90Jystat.errorfloatnullablel_FAKARI140Limit flag on FAKARI140meta.code.errorcharFAKARI140? Flux in AKARI WIDE-L bandJyphot.flux.density;em.mm.1500-3000GHzfloatnullablee_FAKARI140? Uncertainty in FAKARI140Jystat.errorfloatnullablel_FAKARI160Limit flag on FAKARI160meta.code.errorcharFAKARI160? Flux in AKARI 160 micron bandJyphot.flux.density;em.mm.1500-3000GHzfloatnullablePACSB? Flux in Herschel PACS 70 micron bandJyphot.flux.density;em.IR.30-60umfloatnullablee_PACSB? Uncertainty in PACSBJystat.errorfloatnullablePACSG? Flux in Herschel PACS 100 micron bandJyphot.flux.density;em.IR.60-100umfloatnullablee_PACSG? Uncertainty in PACSGJystat.errorfloatnullablel_PACSRLimit flag on PACSRmeta.code.errorcharPACSR? Flux in Herschel PACS 160 micron bandJyphot.flux.density;em.mm.1500-3000GHzfloatnullablee_PACSR? Uncertainty in PACSRJystat.errorfloatnullableJ/A+A/709/A143/tablee2Summary of photometric fluxes estimated from the individual Herschel PACS observationsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSourceSource namemeta.id;meta.maincharRAJ2000Right Ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainOBsIDHerschel Observation IDmeta.id;obsOBsDateObservation date in MJDdtime.epoch;obsdoubleDurDuration of the observationstime.duration;obsintModeObserving modeinstr.setupcharPACSB? Flux in Herschel PACS 70 micron bandJyphot.flux.density;em.IR.30-60umfloatnullablee_PACSB? Uncertainty in PACSBJystat.errorfloatnullablePACSG? Flux in Herschel PACS 100 micron bandJyphot.flux.density;em.IR.60-100umfloatnullablee_PACSG? Uncertainty in PACSGJystat.errorfloatnullablel_PACSRLimit flag on PACSRmeta.code.errorcharPACSRFlux in Herschel PACS 160 micron bandJyphot.flux.density;em.mm.1500-3000GHzfloate_PACSR? Uncertainty in PACSRJystat.errordoublenullable