The Dynamic Inner Disk of a Planet-forming Star
Planets are a natural byproduct of the stellar formation process, resulting from local aggregations of material within the disks surrounding young stars. Whereas signatures of gas-giant planets at large orbital separations have been observed and successfully modeled within protoplanetary disks, the...
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| Language: | English |
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IOP Publishing
2025-01-01
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| Series: | The Astronomical Journal |
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| Online Access: | https://doi.org/10.3847/1538-3881/adcd68 |
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| author | Benjamin R. Setterholm John D. Monnier Fabien Baron Jaehan Bae Jacques Kluska Stefan Kraus Nuria Calvet Noura Ibrahim Evan Rich Narsireddy Anugu Claire L. Davies Jacob Ennis Tyler Gardner Aaron Labdon Cyprien Lanthermann Gail Schaefer |
| author_facet | Benjamin R. Setterholm John D. Monnier Fabien Baron Jaehan Bae Jacques Kluska Stefan Kraus Nuria Calvet Noura Ibrahim Evan Rich Narsireddy Anugu Claire L. Davies Jacob Ennis Tyler Gardner Aaron Labdon Cyprien Lanthermann Gail Schaefer |
| author_sort | Benjamin R. Setterholm |
| collection | DOAJ |
| description | Planets are a natural byproduct of the stellar formation process, resulting from local aggregations of material within the disks surrounding young stars. Whereas signatures of gas-giant planets at large orbital separations have been observed and successfully modeled within protoplanetary disks, the formation pathways of planets within their host star’s future habitable zones remain poorly understood. Analyzing multiple nights of observations conducted over a short, 2 month span with the MIRC-X and PIONIER instruments at the CHARA Array and VLTI, respectively, we uncover a highly active environment at the inner-edge of the planet formation region in the disk of HD 163296. In particular, we localize and track the motion of a disk feature near the dust-sublimation radius with a pattern speed of less than half the local Keplerian velocity, providing a potential glimpse at the planet formation process in action within the inner astronomical unit. We emphasize that this result is at the edge of what is currently possible with available optical interferometric techniques and behooves confirmation with a temporally dense followup observing campaign. |
| format | Article |
| id | doaj-art-c59c1244bc754609b49f89b2968c67a4 |
| institution | OA Journals |
| issn | 1538-3881 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astronomical Journal |
| spelling | doaj-art-c59c1244bc754609b49f89b2968c67a42025-08-20T01:52:11ZengIOP PublishingThe Astronomical Journal1538-38812025-01-01169631810.3847/1538-3881/adcd68The Dynamic Inner Disk of a Planet-forming StarBenjamin R. Setterholm0https://orcid.org/0000-0001-5980-0246John D. Monnier1https://orcid.org/0000-0002-3380-3307Fabien Baron2https://orcid.org/0000-0002-8376-8941Jaehan Bae3https://orcid.org/0000-0001-7258-770XJacques Kluska4https://orcid.org/0000-0002-9491-393XStefan Kraus5https://orcid.org/0000-0001-6017-8773Nuria Calvet6https://orcid.org/0000-0002-3950-5386Noura Ibrahim7https://orcid.org/0000-0002-1788-9366Evan Rich8https://orcid.org/0000-0002-1779-8181Narsireddy Anugu9https://orcid.org/0000-0002-2208-6541Claire L. Davies10https://orcid.org/0000-0001-9764-2357Jacob Ennis11https://orcid.org/0000-0002-1575-4310Tyler Gardner12https://orcid.org/0000-0002-3003-3183Aaron Labdon13https://orcid.org/0000-0001-8837-7045Cyprien Lanthermann14https://orcid.org/0000-0001-9745-5834Gail Schaefer15https://orcid.org/0000-0001-5415-9189Department of Astronomy, University of Michigan , Ann Arbor, MI, USA ; setterholm@mpia.de; Max-Planck-Institut für Astronomie , Heidelberg, GermanyDepartment of Astronomy, University of Michigan , Ann Arbor, MI, USA ; setterholm@mpia.deDepartment of Physics and Astronomy, Georgia State University , Atlanta, GA, USADepartment of Astronomy, University of Florida , Gainesville, FL, USAInstitute of Astronomy , KU Leuven, Leuven, Belgium; Schneider Electric , Grenoble, FranceDepartment of Physics and Astronomy, University of Exeter , Exeter, UKDepartment of Astronomy, University of Michigan , Ann Arbor, MI, USA ; setterholm@mpia.deDepartment of Astronomy, University of Michigan , Ann Arbor, MI, USA ; setterholm@mpia.deDepartment of Physics and Astronomy, University of Nebraska , Lincoln, NE, USAThe CHARA Array of Georgia State University , Mount Wilson, CA, USADepartment of Physics and Astronomy, University of Exeter , Exeter, UKDepartment of Astronomy, University of Michigan , Ann Arbor, MI, USA ; setterholm@mpia.deDepartment of Physics and Astronomy, University of Exeter , Exeter, UKEuropean Southern Observatory , Santiago, ChileThe CHARA Array of Georgia State University , Mount Wilson, CA, USAThe CHARA Array of Georgia State University , Mount Wilson, CA, USAPlanets are a natural byproduct of the stellar formation process, resulting from local aggregations of material within the disks surrounding young stars. Whereas signatures of gas-giant planets at large orbital separations have been observed and successfully modeled within protoplanetary disks, the formation pathways of planets within their host star’s future habitable zones remain poorly understood. Analyzing multiple nights of observations conducted over a short, 2 month span with the MIRC-X and PIONIER instruments at the CHARA Array and VLTI, respectively, we uncover a highly active environment at the inner-edge of the planet formation region in the disk of HD 163296. In particular, we localize and track the motion of a disk feature near the dust-sublimation radius with a pattern speed of less than half the local Keplerian velocity, providing a potential glimpse at the planet formation process in action within the inner astronomical unit. We emphasize that this result is at the edge of what is currently possible with available optical interferometric techniques and behooves confirmation with a temporally dense followup observing campaign.https://doi.org/10.3847/1538-3881/adcd68Protoplanetary disksHerbig Ae/Be starsPlanet formationOptical interferometry |
| spellingShingle | Benjamin R. Setterholm John D. Monnier Fabien Baron Jaehan Bae Jacques Kluska Stefan Kraus Nuria Calvet Noura Ibrahim Evan Rich Narsireddy Anugu Claire L. Davies Jacob Ennis Tyler Gardner Aaron Labdon Cyprien Lanthermann Gail Schaefer The Dynamic Inner Disk of a Planet-forming Star The Astronomical Journal Protoplanetary disks Herbig Ae/Be stars Planet formation Optical interferometry |
| title | The Dynamic Inner Disk of a Planet-forming Star |
| title_full | The Dynamic Inner Disk of a Planet-forming Star |
| title_fullStr | The Dynamic Inner Disk of a Planet-forming Star |
| title_full_unstemmed | The Dynamic Inner Disk of a Planet-forming Star |
| title_short | The Dynamic Inner Disk of a Planet-forming Star |
| title_sort | dynamic inner disk of a planet forming star |
| topic | Protoplanetary disks Herbig Ae/Be stars Planet formation Optical interferometry |
| url | https://doi.org/10.3847/1538-3881/adcd68 |
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