The disk has a gap20+10 −8AU wide at a radius of73±3 AU, which may be being carved by a planet.[13] No planet with mass exceeding 1-2MJ was observed in the gap,[15] but a lower-mass planet or a chain of two planets are still possible.[7]
Evidence for a planet viaastrometric observations was presented in 2024.[16] It could be explain the presence of the gap through long-termresonances with the disk, as its orbital separation is much less than the gap's radius and thus the planet would not be carving the disk directly. Alternatively, both the inner planet and an additional planet within the gap could be shepherding the disk through long-term gravitational interactions.[7]
^Torres, C. A. O.; Quast, G. R.; Da Silva, L.; de la Reza, R.; Melo, C. H. F.; Sterzik, M. (2006). "Search for associations containing young stars (SACY). I. Sample and searching method".Astronomy and Astrophysics.460 (3): 695.arXiv:astro-ph/0609258.Bibcode:2006A&A...460..695T.doi:10.1051/0004-6361:20065602.
^abHojjatpanah, S.; Oshagh, M.; Figueira, P.; Santos, N. C.; Amazo-Gómez, E. M.; Sousa, S. G.; Adibekyan, V.; Akinsanmi, B.; Demangeon, O.; Faria, J.; Gomes Da Silva, J.; Meunier, N. (2020). "The correlation between photometric variability and radial velocity jitter. Based on TESS and HARPS observations".Astronomy and Astrophysics.639.arXiv:2005.10105.Bibcode:2020A&A...639A..35H.doi:10.1051/0004-6361/202038035.
^abcHD 92945, database entry, The Geneva-Copenhagen Survey of Solar neighbourhood, J. Holmberg et al., 2007,CDS IDV/117A. Accessed on line February 2, 2011.
^Matrà, L.; Marino, S.; Wilner, D. J.; Kennedy, G. M.; Booth, M.; Krivov, A. V.; Williams, J. P.; Hughes, A. M.; Burgo, C. del (2025-01-15). "REsolved ALMA and SMA Observations of Nearby Stars (REASONS): A population of 74 resolved planetesimal belts at millimetre wavelengths".Astronomy and Astrophysics.693.arXiv:2501.09058.Bibcode:2025A&A...693A.151M.doi:10.1051/0004-6361/202451397.
^Golimowski, D.; John Krist, J.; Chen, C.; Stapelfeldt, K.; Ardila, D.; Clampin, M.; Schneider, G.; Silverstone, M.; Ford, H.; Illingworth, G. (2007). "Observations and Models of the Debris Disk around the K dwarf HD 92945".In the Spirit of Bernard Lyot: The Direct Detection of Planets and Circumstellar Disks in the 21st Century: 46.Bibcode:2007lyot.confE..46G.
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