J/MNRAS/508/2226ivo://CDS.VizieR/J/MNRAS/508/2226doi:10.26093/cds/vizier.75082226CDSManick R.Miszalski B.Kamath D.Whitelock P.A.Van Winckell H.,Hrivnak B.J.Barlow B.N.Mohamed S.2024-08-21T20:18:41Z2021-10-26T15:29:11ZCDS support team

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

cds-question@unistra.frvariable-starspeculiar-variable-starsinfrared-sourcesradial-velocityinfrared-photometryCurrent models predict that binary interactions are a major ingredient in the formation of bipolar planetary nebulae (PNe) and pre-planetary nebulae (PPNe). Despite years of radial velocity (RV) monitoring, the paucity of known binaries amongst the latter systems means data are insufficient to examine this relationship in detail. In this work, we report on the discovery of a long-period (P=2654+/-124d) binary at the centre of the Galactic bipolar PPN IRAS 08005-2356 (V510 Pup), determined from long-term spectroscopic and near-infrared time-series data. The spectroscopic orbit is fitted with an eccentricity of 0.36+/-0.05, which is similar to that of other long-period post-AGB binaries. Time-resolved H{alpha} profiles reveal high-velocity outflows (jets) with deprojected velocities up to 231^+31^_-27_km/s seen at phases when the luminous primary is behind the jet. The outflow traced by H{alpha} is likely produced via accretion on to a main-sequence companion, for which we calculate a mass of 0.63+/-0.13M_{sun}_. This discovery is one of the first cases of a confirmed binary PPN and demonstrates the importance of high-resolution spectroscopic monitoring surveys using large telescopes in revealing binarity among these systems.2021MNRAS.508.2226Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/508/2226CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/AZh/81/333 : Spectral analysis of V510 Pup (Klochkova+, 2004)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/508/2226https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/508/2226http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/508/2226https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/508/2226https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/508/2226http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/508/2226GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tap5.0692151230857684e-20 1.7798557115773645e-19InfrareddefaultJ/MNRAS/508/2226/table1Radial velocities of IRAS 08005-2356JDHeliocentric Julian datedtime.epochdoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHRVHeliocentric radial velocitykm/sspect.dopplerVeloc;pos.heliocentricfloate_HRVHeliocentric radial Velocity uncertaintykm/sstat.errorfloatJ/MNRAS/508/2226/table2JHKL photometry for IRAS 08005-2356recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintJDJulian Date (JD-2440000)dtime.epochdoubleJmagJ magnitude (uncertainty is 0.02mag)magphot.mag;em.IR.JfloatHmagH magnitude (uncertainty is 0.02mag)magphot.mag;em.IR.HfloatKmagK magnitude (uncertainty is 0.02mag)magphot.mag;em.IR.KfloatLmagL magnitude (uncertainty is 0.05mag)magphot.mag;em.IR.3-4umfloat