J/A+A/658/A158ivo://CDS.VizieR/J/A+A/658/A158doi:10.26093/cds/vizier.36580158CDSGeem J.Ishiguro M.Bach Y.P.Kuroda D.Natio H.Hanayama H.Kim Y.,Kwon Y.G.Jin S.Sekiguchi T.Okazaki R.Vaubaillon J.J.Imai M.,Oono T.Futamura Y.Takagi S.Sato M.Kuramoto K.Watanabe M.2022-05-18T14:09:15Z2022-02-15T09:54:33ZCDS support team

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

cds-question@unistra.frsolar-systemasteroidsphotometryvisible-astronomypolarimetryAsteroids in comet-like orbits (ACOs) consist of asteroids and dormant comets. Due to their similar appearance, it is challenging to distinguish dormant comets from ACOs via general telescopic observations. Surveys for discriminating dormant comets from the ACO population have been conducted via spectroscopy or optical and mid-infrared photometry. However, they have not been conducted through polarimetry. We conducted the first polarimetric research of ACOs. We conducted a linear polarimetric pilot survey for three ACOs: (944) Hidalgo, (3552) Don Quixote, and (331471) 1984 QY1. These objects are unambiguously classified into ACOs in terms of their orbital elements (i.e., the Tisserand parameters with respect to Jupiter TJ significantly less than 3). Three ACOs were observed by the 1.6-m Pirka Telescope from UT 2016 May 25 to UT 2019 July 22 (13 nights). We found that two ACOs, Don Quixote and Hidalgo, have polarimetric properties similar to comet nuclei and D-type asteroids (optical analogs of comet nuclei. However, 1984 QY1 exhibited a polarimetric property consistent with S-type asteroids. We conducted a backward orbital integration to determine the origin of 1984 QY1 and found that this object was transported from the main belt into the current comet-like orbit via the 3:1 mean motion resonance with Jupiter. We conclude that the origins of ACOs can be more reliably identified by adding polarimetric data to the color and spectral information. This study would be valuable for investigating how the ice-bearing small bodies distribute in the inner solar system.2022A&A...658A.158Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/658/A158CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/658/A158https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/658/A158http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/658/A158https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/658/A158https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/658/A158http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/658/A158GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/658/A158/list (List of fits images)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/658/A158/list?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/658/A158/list?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/658/A158/list?GETtext/xml+votable180.050000true96.0409569.032360.005555555555555556Associated datahttps://cdsarc.cds.unistra.fr/assocdata/?obs_collection=J/A+A/658/A1586/898 1023 1465 3072-3073 5715 7281 7862 7865 7986-7987 8002 8008 8064 8443 8446 8797 28379https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/658/A158?format=asciiOpticaldefaultJ/A+A/658/A158/qy1-r(331471) 1984 QY1 relative photometric data in Rc-bandrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintJDJulian datedtime.epochdoubleFilter[IR] Filtermeta.id;instr.filtercharphiPhase angle (Sun-object-Earth)degsrc.orbitalfloatmagReduced magnitude in Filtermagphot.magfloate_magError of reduced magnitudemagstat.error;phot.magfloatJ/A+A/658/A158/qy1-i(331471) 1984 QY1 relative photometric data in Ic-bandrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintJDJulian datedtime.epochdoubleFilter[IR] Filtermeta.id;instr.filtercharphiPhase angle (Sun-object-Earth)degsrc.orbitalfloatmagReduced magnitude in Filtermagphot.magfloate_magError of reduced magnitudemagstat.error;phot.magfloatJ/A+A/658/A158/listList of fits imagesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right Ascension of center (J2000)degpos.eq.ra;meta.mainDEJ2000Declination of center (J2000)degpos.eq.dec;meta.mainNxNumber of pixels along X-axismeta.numberintNyNumber of pixels along Y-axismeta.numberintObs.dateObservation datestime.epoch;obsnullablesizeSize of FITS fileKibytephys.size;meta.fitsintFileNameName of FITS file, in subdirectory fitsmeta.id;meta.fitscharTitleTitle of the FITS filemeta.title;meta.fitschar