J/ApJ/923/90ivo://CDS.VizieR/J/ApJ/923/90doi:10.26093/cds/vizier.19230090CDSMelis C.Olofsson J.Song I.Sarkis P.Weinberger A.J.Kennedy G.,Krumpe M.2023-11-03T12:24:23Z2023-07-19T15:26:09ZCDS support team

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

cds-question@unistra.frg-starsvisible-astronomyWide-band photometryWe present a detailed characterization of the extremely dusty main-sequence star TYC 8830 410 1. This system hosts inner planetary system dust (T_dust_~300K) with a fractional infrared luminosity of ~1%. Mid-infrared spectroscopy reveals a strong, mildly crystalline solid-state emission feature. TYC8830-410-1 (spectral type G9V) has a 49.5" separation M4-type companion comoving and co-distant with it, and we estimate a system age of ~600Myr. TYC8830-410-1 also experiences "dipper"-like dimming events as detected by the All-Sky Automated Survey for Supernovae, Transiting Exoplanet Survey Satellite, and characterized in more detail with the Las Cumbres Observatory Global Telescope. These recurring eclipses suggest at least one roughly star-sized cloud of dust orbits the star in addition to assorted smaller dust structures. The extreme properties of the material orbiting TYC8830-410-1 point to dramatic dust-production mechanisms that likely included something similar to the giant impact event thought to have formed the Earth-Moon system, although hundreds of millions of years after such processes are thought to have concluded in the solar system. TYC 8830 410 1 holds promise to deliver significant advances in our understanding of the origin, structure, and evolution of extremely dusty inner planetary systems.2021ApJ...923...90Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/923/90CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/923/90https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/923/90http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/923/90https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/923/90https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/923/90http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/923/90GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/ApJ/923/90/tablea1TYC 8830 410 1 Las Cumbres Observatory Global Telescope (LCOGT) V-band photometric monitoringrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintMJD[58953.79/59122.83] Modified Julian Datedtime.epochdoubleVmag[11.45/12.62] Apparent V band Vega magnitudemagphot.mag;em.opt.Vfloate_Vmag[0.01/0.2] Uncertainty in Vmagmagstat.error;phot.magfloat