J/A+A/682/A64ivo://CDS.VizieR/J/A+A/682/A64doi:10.26093/cds/vizier.36820064CDSBourdelle de Micas J.Fornasier S.Delbo M.Ferrone S.van Belle G.,Ochner P.Avdellidou C.2024-11-28T20:06:38Z2024-02-02T09:38:30ZCDS support team

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

cds-question@unistra.frsolar-systemasteroidsinfrared-astronomyspectroscopyvisible-astronomyWe present the results of our study about a newly discovered asteroid family in the inner main belt: the primordial S-type family. From an initial list of 263 asteroids that are considered as potential members of the aforementioned primordial family, we retrieved their spectra in visible and near infrared range from the literature and from the Gaia DR3 spectral catalog of solar system objects. For asteroids having no or poor signal-to-noise ratio spectra in the literature, we carried out new ground-based observations. We obtained new spectra for 33 members of the family using the 1.82m Asiago telescope for the visible spectroscopy, while for near infrared spectroscopy we used the 3.58m Telescopio Nazionale Galileo (TNG) and the 4.30m Lowell Discovery Telescope (LDT). In total, we collected spectra of 261 potential members of the primordial S-type family out of 263. We determined their spectral taxonomy and properties, such as spectral slopes and absorption bands parameters, when existing. Using the taxonomical characterization and the orbital space parameters, we identified and removed 71 interlopers from the potential members list. The final list of the primordial S-type family members includes 190 asteroids.2024A&A...682A..64Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/682/A64CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/682/A64https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/682/A64http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/682/A64https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/682/A64https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/682/A64http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/682/A64GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticalInfrareddefaultJ/A+A/682/A64/membersList of family membersrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintObjectNumber and name of the objectmeta.id;meta.maincharDDiameterkmphys.angSizefloatpvGeometric albedo valuephys.albedofloate_pvUncertainties of geometric albedo valuestat.errorfloataSemimajor axisuaphys.angSize.smajAxis;src.orbitalfloateEccentricitysrc.orbital.eccentricityfloatsin(i)Sinus of inclinationsrc.orbital.inclinationfloatTaxTaxonomical classificationmeta.code.classcharSallSlope value of the entire spectra (in %/1000{AA} unit)0.01%.nm**-1stat.fit.paramfloate_SallUncertainties of the slope value (total) (in %/1000{AA} unit)0.01%.nm**-1stat.errorfloatSvisSlope value of the visible part of the spectra (in %/1000{AA} unit)0.01%.nm**-1stat.fit.paramfloate_SvisUncertainties of the slope value (visible) (in %/1000{AA} unit)0.01%.nm**-1stat.errorfloatInterloper[Yes No] Members of the family ?meta.codecharRefLiterature references (1)meta.refcharJ/A+A/682/A64/obsSummary of observationsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintObjectNumber and name of the objectmeta.id;meta.maincharDateDate of the observations (DD/MM/YYYY)time.epochnullableUTHour of the observation (in UTC)time.epochnullableExpExposition time (1)stime.duration;obs.exposurecharvmagVisual magnitudemagphot.mag;em.opt.VfloataPhase angledegsrc.orbitalfloatAirmAirmass of the asteroidobs.airMassfloatSASolar analog star used for reductionmeta.idcharSAAirmAirmass of the considered Solar analogobs.airMassfloatInstrInstrument used for observationsinstr.setupcharSlitLength of the slit usedarcsecinstr.setupfloatJ/A+A/682/A64/listList of fits images of spectraNzNumber of imagesmeta.numberintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNxNumber of pixels along X-axismeta.numberintNyNumber of pixels along Y-axismeta.numberintsizeSize of FITS fileKibytephys.size;meta.fitsintFileNameName of FITS file, in subdirectory fitsmeta.id;meta.fitscharTitleTitle of the FITS filemeta.title;meta.fitschar