LCOGT V-band monitoring of TYC 8830 410 1

DOI

We 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.

Identifier
DOI http://doi.org/10.26093/cds/vizier.19230090
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/ApJ/923/90
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/923/90
Related Identifier http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/923/90
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/ApJ/923/90
Provenance
Creator Melis C.; Olofsson J.; Song I.; Sarkis P.; Weinberger A.J.; Kennedy G.,Krumpe M.
Publisher CDS
Publication Year 2023
Rights https://cds.unistra.fr/vizier-org/licences_vizier.html
OpenAccess true
Contact CDS support team <cds-question(at)unistra.fr>
Representation
Resource Type Dataset; AstroObjects
Discipline Astrophysics and Astronomy; Natural Sciences; Observational Astronomy; Physics; Stellar Astronomy