J/ApJS/263/31ivo://CDS.VizieR/J/ApJS/263/31doi:10.26093/cds/vizier.22630031CDSShuai L.Ren B.B.Dong R.Zhou X.Pueyo L.De Rosa R.J.Fang T.,Mawet D.2023-08-25T11:33:11Z2023-04-13T09:02:27ZCDS support team

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

cds-question@unistra.frstellar-radiistellar-distanceyoung-stellar-objectsinfrared-sourcesvisible-astronomysurveysScattered-light imaging studies have detected nearly two dozen spiral arm systems in circumstellar disks, yet the formation mechanisms for most of them are still under debate. Although existing studies can use motion measurements to distinguish leading mechanisms such as planet-disk interaction and disk self-gravity, close-in stellar flybys can induce short-lived spirals and even excite arm-driving planets into highly eccentric orbits. With unprecedented stellar location and proper-motion measurements from Gaia Data Release 3 (DR3), here we study for known spiral arm systems their flyby history with their stellar neighbors by formulating an analytical on-sky flyby framework. For stellar neighbors currently located within 10pc of the spiral hosts, we restrict the flyby time to within the past 10^4^yr and the flyby distance to within 10 times the disk extent in scattered light. Among a total of 12570 neighbors that are identified in Gaia DR3 for 20 spiral systems, we do not identify credible flyby candidates for isolated systems. Our analysis suggests that a close-in recent flyby is not the dominant formation mechanism for isolated spiral systems in scattered light.2022ApJS..263...31Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/263/31CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/eso : ESO Science Archive Catalog (ESO, 1991-2022)I/355 : Gaia DR3 Part 1. Main source (Gaia Collaboration, 2022)J/A+A/458/173 : Optical spectroscopy of 253 IRAS sources (Suarez+, 2006)J/ApJ/703/1964 : Spectra of three nearby star-forming regions (Furlan+, 2009)J/ApJ/783/121 : BANYAN II. Nearby young assoc. cand. members (Gagne+, 2014)J/ApJ/786/97 : Photospheric properties of T Tauri stars (Herczeg+, 2014)J/AJ/153/188 : Spectroscopy of the foreground pop. in Orion A (Fang+, 2017)J/AJ/153/95 : Catalog of Suspected Nearby Young Stars (Riedel+, 2017)J/ApJ/856/23 : BANYAN. XI. The BANYAN {Sigma} algorithm (Gagne+, 2018)J/ApJ/898/L38 : VLT/SPHERE Y-band images of MWC 758 at two epochs (Ren+, 2020)J/AJ/163/219 : Gaia DR2 stellar flybys in the Sco-Cen OB assoc. (Ma+, 2022)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/263/31https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/263/31http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/263/31https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/263/31https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/263/31http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/263/31GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/263/31/table1 (Summary of flyby information for 20 spiral hosts)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/263/31/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/263/31/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/263/31/table1?GETtext/xml+votable180.050000true246.7928244-24.32017280.005555555555555556Cone search capability for table J/ApJS/263/31/table2 (Flyby history of the 20 source neighbors using Gaia DR3)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/263/31/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/263/31/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/263/31/table2?GETtext/xml+votable180.050000true246.7929-24.32210.0055555555555555564/69 1512 1517 1921 1924 2308-2309 2320-2321 2324 2373 2570 2662 2667 2686-2687 2753 2772-2773 2775 5/275 281 283-286 384-386 5311 5354 5357 5696 5715 5750 5756 5877 5879 6045-6047 6056-6057 6076-6077 6088 6090 6112-6114 6120 7339 7341-7343 7352 7354-7355 7682 7688 7693 9241 9244-9245 9289 9292-9293 9300-9302 9305 9479 9484-9485 9487 9489-9491 9496-9497 9499-9502 9536-9538 9544 10272-10273 10275 10368 10370 10376 10378 10400 10402 10408 10637 10639 10642-10643 10646 10652 10661 10667 10672 10680 10682 10737-10740 10742-10743 10792 11009 11011 11024 11077-11079 11084-11085 11096-11097 6/1091 1093-1095 1097 1099 1121 1123 1148-1149 1195 1198 1282 1288 1290 1312 1314 1548-1550 21239 21410 21425-21427 21432-21433 21436-21438 22612-22613 22615 22851 22854-22855 22857 22859 22872 22874 22884-22885 22991 23004 23006-23007 23028-23030 23540-23541 23543 24106 24175 24179 24216 24218 24232-24233 24240 24261 24263 24269 24271 24315 24358 24364 24366-24367 24460-24462 24611 24614-24615 24619 24621 24633 24706 24721 24729 24731-24733 24735 24738 24740 24743 24748 24753 24755 24778 24810 25089 25096 25101 25103-25104 25121-25122 25125 25131-25132 25136 25140 25145-25146 25152 25154 25160 25192 25194 25219 25223-25225 25231 25236 25238 25246 25255 25265 29342-29344 29351 29362-29363 29414 30722 30724-30725 30727 30733 30760 30762 30768-30769 30771 30800 30802 30808 30816-30818 30820-30821 36885-36887 36892-36893 36895 36960-36961 37152-37153 37165 37176-37177 37180-37181 37212-37213 37216 37218-37219 37224-37225 37232 37888-37890 37911 37915 37944-37945 37947 37953-37955 37992-37994 38012-38013 38036-38037 38078 38085 38095 38099 38125 38129 38132 38134 38141 38156-38158 38160 38162 38168 38180 38184-38186 38193 38203 38226 38230 38235 38237 38245 38247 38250 38254 38257 38262 38265 38274 38279-38280 38282 38293 38295 38297 38304 38311 38314 38316 38324 38326 38332 38339-38340 38345 38350 38359-38360 38363 38365 38369 38372 38374 38379 38381 38395 38397 38419 38430 38469 38478 38489 38501 38508 38521 38523 38548 38559 38580 38598 38600 38602 38608 38614 38637-38638 38643 38650 38654 38658 38665 38672 38675 38680 38682 38687 38689 38696 38698 38700-38701 38703 38715 38720 38728 38730 38732 38736 38738-38739 38742 38756 38758 38766 38779 38791 38796 38798 38806 38808 38812-38813 38818 38821-38822 38833 38840-38841 38845 38850 38852 38858 38860-38861 38865 38890 38898-38899 38902 38908 40006 40022 40024-40025 40028 40200 40220 40276 40281-40282 41002-41003 41097-41099 41106 41114 41136 41138 41476-41478 41484 41510 41516 41604 41606 41612 41614 41640-41642 42526-42527 42547 42553 42555 42616-42618 42641 42651 42655 42662-42663 42692-42693 42732 42734 42911 42933 42935 42941-42943 42945-42947 42966-42967 43008 43144 43146 43176 43178 43520 43522 43528 43530 44033 44035 44041 44043 44068-44069 44080-44081 44104-44105 44305-44307 44348-44349 44392 44396-44397 44399 44497 44500https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/263/31?format=asciiOpticalInfrareddefaultJ/ApJS/263/31/table1Summary of flyby information for 20 spiral hostsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHostSpiral host namemeta.id;meta.maincharprimaryRdisk[17/438] Approximate disk radius in scattered light matching field of view in Figure 1AUphys.size.radiusintNnNumber of neighboring stars (link to Table 2)meta.numberintnullableNbr[201/1973] Number of neighboring stars in Gaia DR3 with location and proper-motion measurements within 10pcmeta.numberintNf[2/28] Number of neighboring stars whose closest approach to the host is within 10^4^yr before Gaia DR3meta.numberintDca[203/945081] Expectation for closest on-sky approach distance in the frequentist approach (1)AUpos.distanceinte_Dca[0/2892] Standard deviation in DcaAUstat.errorintzScore[1.5/14326] Minimum z-score for the closest approaches of all neighbors (1) (2)stat.fit.paramdoubleRUWE[0.9/3.7] RUWE of the host star in Gaia DR3stat.errorfloatSimbadSimbad column added by the CDSmeta.ref.urlcharf_RUWE[b] Flag on RUWE (3)meta.codechar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainJ/ApJS/263/31/table2Flyby history of the 20 source neighbors using Gaia DR3HostStellar identifiermeta.id.parentchar_RA.icrsRight ascension (ICRS) at Epoch=J2016. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)degpos.eq.raindexed_DE.icrsDeclination (ICRS) at Epoch=J2016. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)degpos.eq.decindexedrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGaiaGaia DR3 unique source designationmeta.id;meta.mainDca[0/11021317] Closest approach distance (1)AUpos.distancedoublee_Dca[0/24144] Standard deviation in DcloseAUstat.errordoubleTca[-10000/0] Closest approach time (1)AUtime.epochdoublezScore[1.5/2882927057]? The z-score (Dca/e_Dca)stat.fit.paramdoublenullableRA_ICRS[54.4/257.1] Right Ascension (ICRS) at Ep=2016.0degpos.eq.ra;meta.mainindexedDE_ICRS[-84.4/34.2] Declination (ICRS) at Ep=2016.0degpos.eq.dec;meta.mainindexedRUWE[0.6/49] Gaia DR3 Renormalised Unit Weight Error for each sourcestat.errorfloat