J/AJ/163/44ivo://CDS.VizieR/J/AJ/163/44doi:10.26093/cds/vizier.51630044CDSHansen B.M.S.2022-05-18T12:49:23Z2022-04-22T08:52:36ZCDS support team

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

cds-question@unistra.frmultiple-starsastrometryvisible-astronomyWe present a catalog of unbound stellar pairs, within 100pc of the Sun, that are undergoing close, hyperbolic, encounters. The data are drawn from the GAIA EDR3 catalog, and the limiting factors are errors in the radial distance and unknown velocities along the line of sight. Such stellar pairs have been suggested to be possible events associated with the migration of technological civilizations between stars. As such, this sample may represent a finite set of targets for a SETI search based on this hypothesis. Our catalog contains a total of 132 close passage events, featuring stars from across the entire main sequence, with 16 pairs featuring at least one main-sequence star of spectral type between K1 and F3. Many of these stars are also in binaries, so that we isolate eight single stars as the most likely candidates to search for an ongoing migration event HD87978, HD92577, HD50669, HD44006, HD80790, LSPMJ2126+5338, LSPMJ0646+1829 and HD192486. Among host stars of known planets, the stars GJ433 and HR858 are the best candidates.2022AJ....163...44Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/163/44CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVII/233 : The 2MASS Extended sources (IPAC/UMass, 2003-2006)III/252 : Pulkovo radial velocities for 35493 HIP stars (Gontcharov, 2006)I/337 : Gaia DR1 (Gaia Collaboration, 2016)I/352 : Distances to 1.47 billion stars in Gaia EDR3 (Bailer-Jones+, 2021)J/A+A/549/A109 : HARPS XXXI. The M-dwarf sample (Bonfils+, 2013)J/ApJ/767/94 : 1.1-1.9GHz SETI survey of KOIs. I. (Siemion+, 2013)J/AJ/147/87 : Binaries to multiples. II. Statistical data (Tokovinin, 2014)J/AJ/152/181 : SETI observations of exoplanets with the ATA (Harp+, 2016)J/AJ/153/208 : LCES HIRES/Keck radial velocity ExoplanetSurvey (Butler+, 2017)J/PASP/129/E4501 : Search for extraterrestrial intelligence (Isaacson+, 2017)J/A+A/616/A37 : Close encounters to the Sun in Gaia DR2 (Bailer-Jones+, 2018)J/A+A/616/A10 : 46 open clusters GaiaDR2 HR diagrams (Gaia Collaboration, 2018)J/A+A/623/A72 : Binarity of Hipparcos stars Gaia pm anomaly (Kervella+, 2019)J/A+A/636/A74 : HARPS radial velocity database (Trifonov+, 2020)J/ApJS/246/11 : Search for nearby earth analogs. II. RV analysis. (Feng+, 2020)J/ApJS/247/66 : SUPERWIDE: wide binaries in Gaia & SUPERBLINK (Hartman+, 2020)J/A+A/649/A6 : Gaia Catalogue of Nearby Stars-GCNS (Gaia collaboration, 2021)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/163/44https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/163/44http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/163/44https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/163/44https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/163/44http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/163/44GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/163/44/table2 (The close, unbound pairs featuring lower mass stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/163/44/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/163/44/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/163/44/table2?GETtext/xml+votable180.050000true112.97058336.55697220.0055555555555555566/752 1030 1189 1291 1412 1821 2013 2349 2736 3493 4688 6347 6465 6579 6923 6946 7022 7302 7399 7651 7917 8646 8786 9159 9542 11984 12472 12911 13314 13625 13969 14336 14456 14489 14993 15297 15762 18276 18318 18561 19200 19784 19868 20093 20104 20646 22275 22297 22323 22402 22737 22808 23330 23493 23518 23633 24196 24496 25483 26050 26370 26751 27056 27307 27770 28080 29019 29145 29554 29765 30139 30277 30390 31197 31206 32130 32516 32664 33466 33631 34521 34563 35322 35942 36161 37560 37673 38026 38765 39046 39348 39557 39952 40155 40559 40863 41702 42220 42587 42857 42917 42927 43334 43867 44266 44476 44776 45665 45813 46185 46541 46860 47862 47894 481111.9867573869263685e-19 3.916500758235022e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/163/44?format=asciiOpticaldefaultJ/AJ/163/44/table2The close, unbound pairs featuring lower mass starsSimbadNameSimbad column added by the CDSmeta.idcharnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintName1Name of first member of encounter pair (1)meta.id;meta.maincharDist1[13.9/99.6] Distance to first memberpcpos.distancefloatE_Dist1[0.008/89] Upper uncertainty in Dist1pcstat.error;stat.maxfloate_Dist1[0.008/4] Lower uncertainty in Dist1pcstat.errorfloatl_Gmag1Limit flag on Gmag1meta.code.errorcharGmag1[6.24/14.9] Apparent Gaia EDR3 G band magnitudemagphot.mag;em.opt.Vfloate_Gmag1[0.01/0.3]? Uncertainty in Gmag1magstat.error;phot.magfloatnullableB-R1[-0.24/4.15] Gaia EDR3 B-R colorphot.color;em.opt.B;em.opt.RfloatName2Name of second member of encounter pair (1)meta.id.assoccharDist2[13.7/98.9] Distance to second memberpcpos.distancefloatE_Dist2[0.002/66] Upper uncertainty in Dist2pcstat.error;stat.maxfloate_Dist2[0.002/3] Lower uncertainty in Dist2pcstat.errorfloatl_Gmag2Limit flag on Gmag2meta.code.errorcharGmag2[6.53/17.5] Apparent Gaia EDR3 G band magnitudemagphot.mag;em.opt.Vfloate_Gmag2[0.01/0.2]? Uncertainty in Gmag2magstat.error;phot.magfloatnullableB-R2[0.59/4.47] Gaia EDR3 B-R colorphot.color;em.opt.B;em.opt.Rfloatbmin[22/14210] Minimum Impact ParameterAUsrc.impactParam;stat.minintTmin[-11850/10800] Time of closest approach for bminyrtime.epochintProb[0/0.37] Probability of b within 10000AUmeta.notefloatRatio[0.05/13.2] The (1.e^4^/bmin)^2^ ratiometa.notefloatNotesAdditional information (2)meta.notechar_RAPosition from SIMBAD or 2MASS names (right ascension part)degpos.eq.ra;meta.main_DEPosition from SIMBAD or 2MASS names (declination part)degpos.eq.dec;meta.main