The first scattered light images of HD 112810, a faint debris disk in the Sco-Cen association
In: Astronomy & Astrophysics ; https://insu.hal.science/insu-04479040 ; Astronomy & Astrophysics, 2023, 679, ⟨10.1051/0004-6361/202347335⟩, 2023
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Zugriff:
International audience ; Context. Circumstellar debris disks provide insight into the formation and early evolution of planetary systems. Resolved belts in particular help to locate planetesimals in exosystems, and can hint at the presence of disk-sculpting exoplanets. Aims: We study the circumstellar environment of HD 112810 (HIP 63439), a mid-F-type star in the Sco-Cen association with a significant infrared excess indicating the presence of a circumstellar debris disk. Methods: We collected five high-contrast observations of HD 112810 with VLT/SPHERE. We identified a debris disk in scattered light, and found that the debris signature is robust over a number of epochs and a variety of reduction techniques. We modeled the disk, accounting for self-subtraction and assuming that it is optically thin. Results: We find a single-belt debris disk, with a radius of 118 ± 9 au and an inclination angle of 75.7 −1.3 +1.1 . This is in good agreement with the constraints from spectral energy distribution modeling and from a partially resolved ALMA image of the system. No planets are detected, though planets below the detection limit (~2.6 M J at a projected separation of 118 au) could be present and could have contributed to sculpting the ring of debris. Conclusions: HD 112810 adds to the growing inventory of debris disks imaged in scattered light. The disk is faint, but the radius and the inclination of the disk are promising for follow-up studies of the dust properties.
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The first scattered light images of HD 112810, a faint debris disk in the Sco-Cen association
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Autor/in / Beteiligte Person: | Matthews, E. C. ; Bonnefoy, M. ; Xie, C. ; Desgrange, C. ; Desidera, S. ; Delorme, P. ; Milli, J. ; Olofsson, J. ; Barbato, D. ; Ceva, W. ; Augereau, J. C. ; Biller, B. A. ; Chen, C. H. ; Faramaz-Gorka, V. ; Galicher, R. ; Hinkley, S. ; Lagrange, A. M. ; Ménard, F. ; Pinte, C. ; Stapelfeldt, K. R. ; Institut de Planétologie et d'Astrophysique de Grenoble (IPAG) ; Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Grenoble (OSUG ) ; Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA) ; Laboratoire d'Astrophysique de Marseille (LAM) ; Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS) ; Laboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics (LESIA) ; Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris ; Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité) |
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Zeitschrift: | Astronomy & Astrophysics ; https://insu.hal.science/insu-04479040 ; Astronomy & Astrophysics, 2023, 679, ⟨10.1051/0004-6361/202347335⟩, 2023 |
Veröffentlichung: | HAL CCSD, 2023 |
Medientyp: | academicJournal |
DOI: | 10.1051/0004-6361/202347335 |
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