Observational Signatures of Dust Traffic Jams in Polar-aligning Circumbinary Disks
Misaligned circumbinary disks will produce dust traffic jams during alignment or antialignment to the binary orbital plane. We conduct a hydrodynamical simulation of an initially misaligned circumbinary disk undergoing polar alignment with multiple dust species. Due to differential precession betwee...
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| Language: | English |
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IOP Publishing
2024-01-01
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| Series: | The Astrophysical Journal Letters |
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| Online Access: | https://doi.org/10.3847/2041-8213/ad8faf |
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| author | Jeremy L. Smallwood Rebecca Nealon Hsi-Wei Yen Christophe Pinte Cristiano Longarini Hossam Aly Min-Kai Lin |
| author_facet | Jeremy L. Smallwood Rebecca Nealon Hsi-Wei Yen Christophe Pinte Cristiano Longarini Hossam Aly Min-Kai Lin |
| author_sort | Jeremy L. Smallwood |
| collection | DOAJ |
| description | Misaligned circumbinary disks will produce dust traffic jams during alignment or antialignment to the binary orbital plane. We conduct a hydrodynamical simulation of an initially misaligned circumbinary disk undergoing polar alignment with multiple dust species. Due to differential precession between the gas and dust components, multiple dust traffic jams are produced within the disk during polar alignment. The radial locations of the dust traffic jams depend on the Stokes number of the grains, which depends on grain size. We compute the dust temperature structure using postprocessing radiative transfer to produce continuum images at centimeter wavelengths. Multiple distinct rings emerge in the continuum images, corresponding to the dust traffic jams. The angular resolution of upcoming observations from the Square Kilometre Array and the next-generation Very Large Array will be sufficient to detect centimeter-sized grains in protoplanetary disks and resolve the widths of dust traffic jams. Therefore, dust traffic jams resulting from the differential precession of gas and dust in misaligned circumbinary disks will be a prime target for more extended wavelength observations. |
| format | Article |
| id | doaj-art-194d91305be541ccb113cb0f4d50550d |
| institution | Kabale University |
| issn | 2041-8205 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astrophysical Journal Letters |
| spelling | doaj-art-194d91305be541ccb113cb0f4d50550d2025-01-30T18:34:58ZengIOP PublishingThe Astrophysical Journal Letters2041-82052024-01-019762L2310.3847/2041-8213/ad8fafObservational Signatures of Dust Traffic Jams in Polar-aligning Circumbinary DisksJeremy L. Smallwood0https://orcid.org/0000-0002-4314-398XRebecca Nealon1https://orcid.org/0000-0003-0856-679XHsi-Wei Yen2https://orcid.org/0000-0003-1412-893XChristophe Pinte3https://orcid.org/0000-0001-5907-5179Cristiano Longarini4https://orcid.org/0000-0003-4663-0318Hossam Aly5https://orcid.org/0000-0002-1342-1694Min-Kai Lin6https://orcid.org/0000-0002-8597-4386Institute of Astronomy and Astrophysics , Academia Sinica, Taipei 106216, Taiwan, R.O.C. ; drjeremysmallwood@gmail.comCentre for Exoplanets and Habitability, University of Warwick , Coventry CV4 7AL, UK; Department of Physics, University of Warwick , Coventry CV4 7AL, UKInstitute of Astronomy and Astrophysics , Academia Sinica, Taipei 106216, Taiwan, R.O.C. ; drjeremysmallwood@gmail.comSchool of Physics and Astronomy, Monash University , Clayton, VIC 3800, Australia; Université Grenoble Alpes , CNRS, IPAG, F-38000 Grenoble, FranceInstitute of Astronomy, University of Cambridge , Madingley Road, Cambridge CB3 0HA, UKFaculty of Aerospace Engineering, Delft University of Technology , Kluyverweg 1, 2629 HS Delft, The NetherlandsInstitute of Astronomy and Astrophysics , Academia Sinica, Taipei 106216, Taiwan, R.O.C. ; drjeremysmallwood@gmail.comMisaligned circumbinary disks will produce dust traffic jams during alignment or antialignment to the binary orbital plane. We conduct a hydrodynamical simulation of an initially misaligned circumbinary disk undergoing polar alignment with multiple dust species. Due to differential precession between the gas and dust components, multiple dust traffic jams are produced within the disk during polar alignment. The radial locations of the dust traffic jams depend on the Stokes number of the grains, which depends on grain size. We compute the dust temperature structure using postprocessing radiative transfer to produce continuum images at centimeter wavelengths. Multiple distinct rings emerge in the continuum images, corresponding to the dust traffic jams. The angular resolution of upcoming observations from the Square Kilometre Array and the next-generation Very Large Array will be sufficient to detect centimeter-sized grains in protoplanetary disks and resolve the widths of dust traffic jams. Therefore, dust traffic jams resulting from the differential precession of gas and dust in misaligned circumbinary disks will be a prime target for more extended wavelength observations.https://doi.org/10.3847/2041-8213/ad8fafProtoplanetary disksBinary starsAstronomical techniques |
| spellingShingle | Jeremy L. Smallwood Rebecca Nealon Hsi-Wei Yen Christophe Pinte Cristiano Longarini Hossam Aly Min-Kai Lin Observational Signatures of Dust Traffic Jams in Polar-aligning Circumbinary Disks The Astrophysical Journal Letters Protoplanetary disks Binary stars Astronomical techniques |
| title | Observational Signatures of Dust Traffic Jams in Polar-aligning Circumbinary Disks |
| title_full | Observational Signatures of Dust Traffic Jams in Polar-aligning Circumbinary Disks |
| title_fullStr | Observational Signatures of Dust Traffic Jams in Polar-aligning Circumbinary Disks |
| title_full_unstemmed | Observational Signatures of Dust Traffic Jams in Polar-aligning Circumbinary Disks |
| title_short | Observational Signatures of Dust Traffic Jams in Polar-aligning Circumbinary Disks |
| title_sort | observational signatures of dust traffic jams in polar aligning circumbinary disks |
| topic | Protoplanetary disks Binary stars Astronomical techniques |
| url | https://doi.org/10.3847/2041-8213/ad8faf |
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