J/ApJS/245/29ivo://CDS.VizieR/J/ApJS/245/29doi:10.26093/cds/vizier.22450029CDSMcNeill A.Mommert M.Trilling D.E.Llama J.Skiff B.2020-07-21T13:38:44Z2020-06-05T14:59:01ZCDS support team

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

cds-question@unistra.frasteroidsphotometryThe Transiting Exoplanet Survey Satellite (TESS) searches for planets transiting bright and nearby stars using high-cadence, large-scale photometric observations. Full frame images provided by the TESS mission include a large number of serendipitously observed main-belt asteroids (MBAs). Due to the cadence of the published full frame images, we are sensitive to periods as long as of order tens of days, a region of phase space that is generally not accessible through traditional observing. This work represents a much less biased measurement of the period distribution in this period range. We have derived rotation periods for 300 MBAs and have partial lightcurves for a further 7277 asteroids, including 43 with periods of P>100hr; this large number of slow rotators is predicted by theory. Of these slow rotators we find none requiring significant internal strength to resist rotational reshaping. We find our derived rotation periods to be in excellent agreement with results in the Lightcurve Database for the 55 targets that overlap. Over the nominal two-year lifetime of the mission, we expect the detection of around 85,000 unique asteroids with rotation period solutions for around 6000 asteroids. We project that the systematic analysis of the entire TESS data set will increase the number of known slow-rotating asteroids (period >100hr) by a factor of 10. Comparing our new period determinations with previous measurements in the literature, we find that the rotation period of asteroid (2320) Blarney has decreased by at least 20% over the past decade, potentially due to surface activity or subcatastrophic collisions.2019ApJS..245...29Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/245/29CatalogResearchIsServedByTAP VizieR generic servicerelated-toB/astorb : Orbits of Minor Planets (Bowell+, 2014)IV/38 : TESS Input Catalog - v8.0 (TIC-8) (Stassun+, 2019)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/529/A86 : Polarimetric survey of main-belt asteroids (Gil-Hutton+, 2011)J/PASJ/63/1117 : Asteroid catalog using AKARI (AcuA). V1. (Usui+, 2011)J/ApJ/759/L8 : WISE/NEOWISE obs. of main belt asteroids (Masiero+, 2012)J/A+A/545/A131 : Photometry of 8 main belt asteroids (Marciniak+, 2012)J/ApJ/770/7 : WISE/NEOWISE MBAs: family members (Masiero+, 2013)J/ApJ/791/121 : NIR albedos of main-belt asteroids (Masiero+, 2014)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/AJ/152/54 : Spectroscopy of main-belt asteroids (Vernazza+, 2016)J/A+A/607/A103 : Main-belt asteroids polarimetry. VI. (Gil-Hutton+, 2017)J/AJ/156/139 : MBA shape distributions from 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/626/A42 : Polarimetry of Main-Belt Asteroids (Lopez-Sisterna+, 2019)J/AJ/159/25 : PS1 LCs and rotation periods of new asteroids (Lo+, 2020)http://heasarc.gsfc.nasa.gov/docs/tess/ : TESS science support centerhttp://archive.stsci.edu/tess/bulk_downloads/bulk_downloads_ffi-tp-lc-dv.html :https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/245/29https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/245/29http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/245/29https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/245/29https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/245/29http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/245/29GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapdefaultJ/ApJS/245/29/table1Summary table of rotational information derived from pilot-study TESS observationse_Per[0.001/6.8] Uncertainty in Perhstat.errorfloatSig[0.4/1] Normalized Peak Signal (1)stat.fit.paramfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintID[70/413098] Object in pilot-study TESS observationsmeta.id;obsintH[6.5/18] Absolute visual magnitudemagphys.magAbsfloatCov[36/668] Coverage of observationshtime.intervalintPer[0.5/538] Rotational periodhtime.periodfloatAmp[0.08/1.9] Light curve amplitudemagsrc.var.amplitudefloate_Amp[0.02/0.7] Uncertainty in Ampmagstat.errorfloat