J/ApJS/219/27ivo://CDS.VizieR/J/ApJS/219/27doi:10.26093/cds/vizier.22190027CDSChang C.-K.Ip W.-H.Lin H.-W.Cheng Y.-C.Ngeow C.-C.Yang T.-C.,Waszczak A.Kulkarni S.R.Levitan D.Sesar B.Laher R.Surace J.,Prince T.A.2017-12-18T07:57:34Z2015-11-02T09:10:55ZCDS support team

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

cds-question@unistra.frasteroidssurveysinfrared-photometryvisible-astronomyphotometryTwo dedicated asteroid rotation-period surveys have been carried out in the R band with ~20 minute cadence using the intermediate Palomar Transient Factory (iPTF) during 2014 January 6-9 and February 20-23. The total survey area covered 174deg^2^ in the ecliptic plane. Reliable rotation periods for 1438 asteroids are obtained from a larger data set of 6551 mostly main-belt asteroids, each with >=10 detections. Analysis of 1751, PTF-based, reliable rotation periods clearly shows the spin barrier at ~2hr for rubble-pile asteroids. We found a new large super-fast rotator, 2005 UW163, and another five candidates as well. For asteroids of 3<D<15km, our spin-rate distribution shows a number decrease along with frequency after 5 rev/day, which is consistent with the results of the Asteroid Light Curve Database. The discrepancy between our work and that of Pravec et al. (update 2014 April 20) comes mainly from asteroids with {Delta}_m_<0.2mag, which could be the result of different survey strategies. For asteroids with D<3km, we see a significant number drop at f=6rev/day. The relatively short YORP effect timescale for small asteroids could have spun up those elongated objects to reach their spin-rate limit resulting in breakup to create such a number deficiency. We also see that the C-type asteroids show a smaller spin-rate limit than the S-type, which agrees with the general impression that C-type asteroids have a lower bulk density than S-type asteroids.2015ApJS..219...27Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/219/27CatalogResearchIsServedByTAP VizieR generic servicerelated-toB/astorb : Orbits of Minor Planets (Bowell+ 2014)II/313 : Palomar Transient Factory (PTF) photometric cat. 1.0 (Ofek+, 2012)J/A+A/556/A8 : 100 asteroids rotational parameters (Lhotka+, 2013)J/ApJ/770/7 : WISE/NEOWISE Main Belt asteroids (Masiero+, 2013)J/ApJ/743/156 : NEOWISE obs. of NEOs: preliminary results (Mainzer+, 2011)J/ApJ/742/40 : Jovian Trojans asteroids with WISE/NEOWISE (Grav+, 2011)J/ApJ/741/68 : Main Belt asteroids with WISE/NEOWISE. I. (Masiero+, 2011)http://www.ptf.caltech.edu/iptf : Intermediate Palomar Transient Factory homehttp://minorplanetcenter.net/ : IAU Minor Planet Center home pagehttp://www.minorplanet.info/lightcurvedatabase.html : Asteroid LC databasehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/219/27https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/219/27http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/219/27https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/219/27https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/219/27http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/219/27GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapInfraredOpticaldefaultJ/ApJS/219/27/table2*Synodic rotation periods of PTF-U2sAstorbSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDObject identifier (asteroid number or MPC packed format)meta.id;meta.maincharf_IDFlag on ID (1)meta.codecharPlanet? Asteroid numbermeta.idintnullableNameName or preliminary designationmeta.idchara[1.3/5.3] Semi-major axisAUphys.size.smajAxisfloate[0.01/0.5] Eccentricitysrc.orbital.eccentricityfloati[0.04/31] Inclinationdegsrc.orbital.inclinationfloatOmegaLongitude of ascending nodedegsrc.orbital.nodefloatomegaArgument of periapsisdegsrc.orbital.periastronfloatDiam[0.1/122.3] Diameterkmphys.size.diameterfloatf_Diam[w] w: Diam derived from WISE/NEOWISE datameta.codecharDelta[1/5.8] Heliocentric distanceAUpos.distance;pos.heliocentricfloatr[0.1/4.8] Geodesic distanceAUpos.distance;src.orbitalfloatalpha[0.2/20.6] Phase angledegpos.phaseAngfloatHRmag[8.4/21.7] Absolute H_R_ magnitudemagphys.magAbsfloate_HRmag[0.03/0.5] Uncertainty in HRmagmagstat.error;phot.magfloatNn[1/4] Number of nightsmeta.numberintNi[14/122] Number of imagesmeta.numberintRptf[13.9/21.1] PTF R band magnitudemagphot.mag;em.opt.Rfloate_Rptf[0/0.2] Uncertainty in Rptfmagstat.errorfloatPer[1.2/44]? Derived rotation period (not for table 4)htime.periodfloatnullablee_Per[0/83.4]? Uncertainty in Perhstat.errorfloatnullableAmp[0.04/1.6] Lightcurve amplitudemagsrc.var.amplitudefloatU[2/3]? Lightcurve quality code; 3=highly reliable (not for table 4) (2)meta.code.qualintnullableJ/ApJS/219/27/table3Asteroids with partial phase coveragerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDObject identifier (asteroid number or MPC packed format)meta.id;meta.maincharf_IDFlag on ID (1)meta.codecharPlanet? Asteroid numbermeta.idintnullableNameName or preliminary designationmeta.idchara[1.3/5.3] Semi-major axisAUphys.size.smajAxisfloate[0.01/0.5] Eccentricitysrc.orbital.eccentricityfloati[0.04/31] Inclinationdegsrc.orbital.inclinationfloatOmegaLongitude of ascending nodedegsrc.orbital.nodefloatomegaArgument of periapsisdegsrc.orbital.periastronfloatDiam[0.1/122.3] Diameterkmphys.size.diameterfloatf_Diam[w] w: Diam derived from WISE/NEOWISE datameta.codecharDelta[1/5.8] Heliocentric distanceAUpos.distance;pos.heliocentricfloatr[0.1/4.8] Geodesic distanceAUpos.distance;src.orbitalfloatalpha[0.2/20.6] Phase angledegpos.phaseAngfloatHRmag[8.4/21.7] Absolute H_R_ magnitudemagphys.magAbsfloate_HRmag[0.03/0.5] Uncertainty in HRmagmagstat.error;phot.magfloatNn[1/4] Number of nightsmeta.numberintNi[14/122] Number of imagesmeta.numberintRptf[13.9/21.1] PTF R band magnitudemagphot.mag;em.opt.Rfloate_Rptf[0/0.2] Uncertainty in Rptfmagstat.errorfloatPer[1.2/44]? Derived rotation period (not for table 4)htime.periodfloatnullablee_Per[0/83.4]? Uncertainty in Perhstat.errorfloatnullableAmp[0.04/1.6] Lightcurve amplitudemagsrc.var.amplitudefloatU[2/3]? Lightcurve quality code; 3=highly reliable (not for table 4) (2)meta.code.qualintnullableJ/ApJS/219/27/table4Bright asteroids with large light-curve variation and without rotation-period determinationPlanet? Asteroid numbermeta.idintnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDObject identifier (asteroid number or MPC packed format)meta.id;meta.maincharf_IDFlag on ID (1)meta.codecharNameName or preliminary designationmeta.idchara[1.3/5.3] Semi-major axisAUphys.size.smajAxisfloate[0.01/0.5] Eccentricitysrc.orbital.eccentricityfloati[0.04/31] Inclinationdegsrc.orbital.inclinationfloatOmegaLongitude of ascending nodedegsrc.orbital.nodefloatomegaArgument of periapsisdegsrc.orbital.periastronfloatDiam[0.1/122.3] Diameterkmphys.size.diameterfloatf_Diam[w] w: Diam derived from WISE/NEOWISE datameta.codecharDelta[1/5.8] Heliocentric distanceAUpos.distance;pos.heliocentricfloatr[0.1/4.8] Geodesic distanceAUpos.distance;src.orbitalfloatalpha[0.2/20.6] Phase angledegpos.phaseAngfloatHRmag[8.4/21.7] Absolute H_R_ magnitudemagphys.magAbsfloate_HRmag[0.03/0.5] Uncertainty in HRmagmagstat.error;phot.magfloatNn[1/4] Number of nightsmeta.numberintNi[14/122] Number of imagesmeta.numberintRptf[13.9/21.1] PTF R band magnitudemagphot.mag;em.opt.Rfloate_Rptf[0/0.2] Uncertainty in Rptfmagstat.errorfloatAmp[0.04/1.6] Lightcurve amplitudemagsrc.var.amplitudefloat