J/MNRAS/468/3499ivo://CDS.VizieR/J/MNRAS/468/3499doi:10.26093/cds/vizier.74683499CDSDeacon N.R.Magnier E.A.Best W.M.J.Liu M.C.Dupuy T.J.,Chambers K.C.Draper P.W.Flewelling H.Metcalfe N.Tonry J.L.,Wainscoat R.J.Waters C.2024-08-17T20:18:44Z2020-04-15T09:23:46ZCDS support team

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

cds-question@unistra.frmultiple-starsUsing shape measurement techniques developed for weak lensing surveys, we have identified three new ultracool binaries in the Pan-STARRS 1 (Chambers et al., 2016, arXiv:1612.05560, Cat. II/349) survey. Binary companions that are not completely resolved can still alter the shapes of stellar images. These shape distortions can be measured if point spread function anisotropy caused by the telescope is properly accounted for. We show using both a sample of known binary stars and simulated binaries that we can reliably recover binaries wider than around 0.3-arcsec and with flux ratios greater than around 0.1. We then applied our method to a sample of ultracool dwarfs within 30pc with 293 objects having sufficient Pan-STARRS 1 data for our method. In total, we recovered all but one of the 11 binaries wider than 0.3-arcsec in this sample. Our one failure was a true binary detected with a significant but erroneously high ellipticity that led it to be rejected in our analysis. We identify three new binaries, one a simultaneous discovery, with primary spectral types M6.5, L1 and T0.5. These latter two were confirmed with Keck/Near Infrared Camera 2 follow-up imaging. This technique will be useful for identifying large numbers of stellar and substellar binaries in the upcoming Large Synoptic Survey Telescope and Dark Energy Survey sky surveys.2017MNRAS.468.3499Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/468/3499CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/349 : The Pan-STARRS release 1 (PS1) Survey - DR1 (Chambers, 2016)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/468/3499https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/468/3499http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/468/3499https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/468/3499https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/468/3499http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/468/3499GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/468/3499/table2 (A list of objects that did not have ellipticity at the reference seeing greater than 0.02 and more significant than 4{sigma})https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/468/3499/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/468/3499/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/468/3499/table2?GETtext/xml+votable180.050000true0.301166715.59269440.0055555555555555566/221 223 322 496 672 733 749 1188 1637 1998 2149 2291 2502 2592 2784 3192 4226 4543 4630 4685 4739 4775 5077 5200 5540 5621 5783 5817 5840 6047 6261 6328 6550 6629 6761 6783 6844 7030 7033 7162 7204 7364 7420 7709 7846 7985 8127 8381 8480 8625 8719 8723 8761 8808 9009 9124 9146 9169 9173 9318 9385 9428 9449 9569 9628 9715 9921 10037 10555 10665 11074 11292 11453 11587 11608 11639 11719 11856 12253 12262 12369 12427 12466 12579 12582 12638 12731 13341 13425 13432 13559 13678 13885 14084 14492 14910 14926 15085 15320 15597 15660 16021 16085 16345 16568 16609 16645 16856 16983 17075 17096 17332 17594 17757 18060 18166 18266 18375 18683 18711 18726 18782 19144 19369 19697 19763 19895 20136 20415 20436 20754 20891 20897 20928 20941 21157 21171 21209 21468 21637 21728 21809 21835 21899 22177 22300 22535 22759 22861 22937 22950 23010 23144 23237 23310 23791 23882 24313 24345 24566 24573 24694 24769 24824 24887 24897 25015 25266 25310 25314 25411 25433 25515 25558 26210 26223 26300 26393 26786 27019 27058 27201 27383 27413 27514 27648 27653 28018 28417 29018 29384 29987 30061 30200 30749 30833 30883 31011 31062 31268 31296 31324 31502 31601 31747 31871 32426 32554 32596 32643 34780 34803 36223 36458 36640 36821 36861 38812 40022 40191 40297 40300 40332 40375 40403 40485 40669 40738 40843 40901 43875 43957 43977 44118 44306 44314 44416 44486 44603 44807 45006 45023 47979 48409 48593 48957 48990 49072 49139-49140https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/468/3499?format=asciidefaultJ/MNRAS/468/3499/table2A list of objects that did not have ellipticity at the reference seeing greater than 0.02 and more significant than 4{sigma}SimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameName(s)meta.id;meta.maincharRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainePS1PS1 ellipticitysrc.ellipticityfloate_ePS1PS1 ellipticity errorstat.errorfloate1Ellipticity polarisation, elongation along the right ascension axissrc.ellipticityfloate_e1Ellipticity polarisation, elongation along the right ascension axis, errorstat.errorfloate2Ellipticity polarisation, elongation along the declination axissrc.ellipticityfloate_e2Ellipticity polarisation, elongation along the declination axis errorstat.errorfloat