J/AJ/159/264ivo://CDS.VizieR/J/AJ/159/264doi:10.26093/cds/vizier.51590264CDSJiang H.Ji J.Yu L.2021-01-11T08:30:04Z2020-08-25T06:38:21ZCDS support team

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

cds-question@unistra.frasteroidsinfrared-photometryIn this work, we investigate the size, thermal inertia, surface roughness, and geometric albedo of 10 Vesta family asteroids using the Advanced Thermophysical Model (ATM), based on the thermal-infrared data acquired by mainly NASA's Wide-field Infrared Survey Explorer (WISE). Here, we show that the average thermal inertia and geometric albedo of the investigated Vesta family members are 42J/m^2^/s^1/2^/K and 0.314, respectively, where the derived effective diameters are less than 10km. Moreover, the family members have a relatively low roughness fraction on their surfaces. The similarity in thermal inertia and geometric albedo among the V-type Vesta family members may reveal their close connection in origin and evolution. As the fragments of the cratering event of Vesta, the family members may have undergone a similar evolutionary process, thereby leading to very close thermal properties. Finally, we estimate their regolith grain sizes with different volume filling factors.2020AJ....159..264Jhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/159/264CatalogResearchIsServedByTAP VizieR generic servicerelated-toB/astorb : Orbits of Minor Planets (Bowell+ 2014)J/A+A/498/313 : Photometry of 3 main belt asteroids (Marciniak+, 2009)J/A+A/508/1503 : Photometry of 3 main belt asteroids (Marciniak+, 2009)J/A+A/529/A107 : Photometry of 4 main belt asteroids (Marciniak+, 2011)J/ApJ/741/68 : Main Belt asteroids with WISE/NEOWISE. I. (Masiero+, 2011)J/A+A/545/A131 : Photometry of 8 main belt asteroids (Marciniak+, 2012)J/ApJ/744/197 : WISE/NEOWISE observations of Hilda asteroids (Grav+, 2012)J/ApJ/759/L8 : WISE/NEOWISE obs. of main belt asteroids (Masiero+, 2012)J/ApJ/760/L12 : WISE/NEOWISE NEOs preliminary thermal fits (Mainzer+, 2012)J/ApJ/770/7 : WISE/NEOWISE Main Belt asteroids family memb. (Masiero+, 2013)J/A+A/578/A42 : Main Belt asteroids observed by Spitzer (Ryan+, 2015)J/A+A/596/A40 : Main-belt asteroids optical light curves (Szabo+, 2016)J/MNRAS/456/248 : (4) Vesta adopted polarimetric light curves (Cellino+, 2016)J/AJ/156/139 : Main belt asteroid shape distrib. Gaia DR2 (Mommert+, 2018)J/ApJS/234/37 : R-band K2 photometry of main-belt asteroids (Molnar+, 2018)J/ApJS/237/19 : KMTNet LCs of ~1000 main-belt asteroids (Erasmus+, 2018)J/A+A/623/A6 : VLT/SPHERE/ZIMPOL images of Vesta (Fetick+, 2019)J/ApJS/245/29 : Main-belt asteroid photometry from TESS (McNeill+, 2019)J/AJ/159/25 : PS1 light curves & rotation periods, new asteroids (Lo+, 2020)http://www.minorplanetcenter.net/iau/mpc.html : Minor planet center homepagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/159/264https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/159/264http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/159/264https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/159/264https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/159/264http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/159/264GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tap8.157980699529898e-21 4.8065244008477756e-20InfrareddefaultJ/AJ/159/264/table1Orbital and physical characteristics of the investigated asteroids and the parameters in this work (JD=2458600.5, from Minor Planet Center)Prot-dRotation period in days (added by CDS)dtime.periodcharNver[548/1598] Number of vertices in the shape modelmeta.numberintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameAsteroid observedmeta.idcharprimarya[2.29/2.47] Semi major axisauphys.size.smajAxis;src.orbitalfloate[0.07/0.16] Eccentricitysrc.orbital.eccentricityfloati[5.24/8.05] Inclinationdegsrc.orbital.inclinationfloatPorb[3.48/3.87] Orbital periodyrtime.periodfloatMAG[7.55/14.5] Absolute magnitudephys.magAbsfloatNfac[1092/3192] Number of shape facets in the shape modelmeta.numberintOrientOrientationdegmeta.codecharProt[2.839/11.01] Rotation periodhtime.periodfloatSpTSpectral typesrc.classcharNfluxNumber of observations for this asteroid (link to tablea1)meta.numberintnullableLightInteractive Plotmeta.ref.urlcharJ/AJ/159/264/tablea13-bands WISE/NEOWISE observed flux for the 10 Vesta family asteroidsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameVesta family asteroidmeta.idcharMJD[55203/57924] Modified Julian Date of observation; JD-2400000.5dtime.epochdoubleW2[0.07/148]? WISE band 2 flux (4.6{mu}m)mJyphot.flux.density;em.IRdoublenullablee_W2[0.007/14.8]? Uncertainty in W2mJystat.errordoublenullableW3[3.49/17899]? WISE band 3 flux (12{mu}m)mJyphot.flux.density;em.IR.8-15umdoublenullablee_W3[0.34/1790]? Uncertainty in W3mJystat.errordoublenullableW4[8.77/25024]? WISE band 4 flux (22{mu}m)mJyphot.flux.density;em.IR.15-30umdoublenullablee_W4[0.87/2503]? Uncertainty in W4mJystat.errordoublenullable