| Téléchargement | - Voir la version finale : A uniform analysis of debris discs with the Gemini Planet Imager II: constraints on dust density distribution using empirically informed scattering phase functions (PDF, 3.2 Mio)
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| DOI | Trouver le DOI : https://doi.org/10.1093/mnras/stae368 |
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| Auteur | Rechercher : Hom, JustinIdentifiant ORCID : https://orcid.org/0000-0001-9994-2142; Rechercher : Patience, J.; Rechercher : Chen, C. H.; Rechercher : Duchêne, G.Identifiant ORCID : https://orcid.org/0000-0002-5092-6464; Rechercher : Mazoyer, J.Identifiant ORCID : https://orcid.org/0000-0002-9133-3091; Rechercher : Millar-Blanchaer, M. A.Identifiant ORCID : https://orcid.org/0000-0001-6205-9233; Rechercher : Esposito, T. M.Identifiant ORCID : https://orcid.org/0000-0002-0792-3719; Rechercher : Kalas, P.Identifiant ORCID : https://orcid.org/0000-0002-6221-5360; Rechercher : Crotts, K. A.Identifiant ORCID : https://orcid.org/0000-0003-4909-256X; Rechercher : Gonzales, E. C.Identifiant ORCID : https://orcid.org/0000-0003-4636-6676; Rechercher : Kolokolova, L.; Rechercher : Lewis, B. L.Identifiant ORCID : https://orcid.org/0000-0002-8984-4319; Rechercher : Matthews, B. C.1Identifiant ORCID : https://orcid.org/0000-0003-3017-9577; Rechercher : Rice, M.Identifiant ORCID : https://orcid.org/0000-0002-7670-670X; Rechercher : Weinberger, A. J.Identifiant ORCID : https://orcid.org/0000-0001-6654-7859; Rechercher : Wilner, D. J.Identifiant ORCID : https://orcid.org/0000-0003-1526-7587; Rechercher : Wolff, S. G.Identifiant ORCID : https://orcid.org/0000-0002-9977-8255; Rechercher : Bruzzone, S.; Rechercher : Choquet, E.; Rechercher : Debes, J.; Rechercher : De Rosa, R. J.Identifiant ORCID : https://orcid.org/0000-0002-4918-0247; Rechercher : Donaldson, J.; Rechercher : Draper, Z.; Rechercher : Fitzgerald, M. P.; Rechercher : Hines, D. C.; Rechercher : Hinkley, S.; Rechercher : Hughes, A. M.Identifiant ORCID : https://orcid.org/0000-0002-4803-6200; Rechercher : López, R. A.Identifiant ORCID : https://orcid.org/0000-0002-2019-4995; Rechercher : Marchis, F.Identifiant ORCID : https://orcid.org/0000-0001-7016-7277; Rechercher : Metchev, S.; Rechercher : Moro-Martin, A.; Rechercher : Nesvold, E.; Rechercher : Nielsen, E. L.Identifiant ORCID : https://orcid.org/0000-0001-6975-9056; Rechercher : Oppenheimer, R.Identifiant ORCID : https://orcid.org/0000-0001-7130-7681; Rechercher : Padgett, D.Identifiant ORCID : https://orcid.org/0000-0001-5334-5107; Rechercher : Perrin, M. D.Identifiant ORCID : https://orcid.org/0000-0002-3191-8151; Rechercher : Pueyo, L.; Rechercher : Rantakyrö, F.; Rechercher : Ren, B. B.Identifiant ORCID : https://orcid.org/0000-0003-1698-9696; Rechercher : Schneider, G.; Rechercher : Soummer, R.; Rechercher : Song, I.Identifiant ORCID : https://orcid.org/0000-0002-5815-7372; Rechercher : Stark, C. C. |
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| Affiliation | - Conseil national de recherches du Canada. Herzberg en astronomie et en astrophysique
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| Bailleur de fonds | Rechercher : NASA |
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| Format | Texte, Article |
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| Sujet | scattering; techniques: high angular resolution; stars: circumstellar matter; infrared: planetary systems |
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| Résumé | Spatially resolved images of debris discs are necessary to determine disc morphological properties and the scattering phase function (SPF) thatantifies the brightness of scattered light as a function of phase angle. Current high-contrast imaging instruments have successfully resolved several dozens of debris discs around other stars, but few studies have investigated trends in the scattered-light, resolved population of debris discs in a uniform and consistent manner. We have combined Karhunen-Loeve Image Projection (KLIP) with radiative-transfer disc forward modelling in order to obtain the highest-quality image reductions and constrain disc morphological properties of eight debris discs imaged by the Gemini Planet Imager at H-band with a consistent and uniformly applied approach. In describing the scattering properties of our models, we assume a common SPF informed from solar system dust scattering measurements and apply it to all systems. We identify a diverse range of dust density properties among the sample, including critical radius, radial width, and vertical width. We also identify radially narrow and vertically extended discs that may have resulted from substellar companion perturbations, along with a tentative positive trend in disc eccentricity with relative disc width. We also find that using a common SPF can achieve reasonable model fits for discs that are axisymmetric and asymmetric when fitting models to each side of the disc independently, suggesting that scattering behaviour from debris discs may be similar to Solar system dust. |
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| Date de publication | 2024-02-05 |
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| Maison d’édition | Oxford Academic |
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| Licence | |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | 67ebc309-8160-4ce5-bc0d-db16572fea4a |
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| Enregistrement créé | 2024-04-15 |
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| Enregistrement modifié | 2024-04-15 |
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