Multiband Imaging of the HD 36546 Debris Disk: A Refined View from SCExAO/CHARIS*
| العنوان: | Multiband Imaging of the HD 36546 Debris Disk: A Refined View from SCExAO/CHARIS* |
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| المؤلفون: | Kellen Lawson, Thayne Currie, John P. Wisniewski, Motohide Tamura, Jean-Charles Augereau, Timothy D. Brandt, Olivier Guyon, N. Jeremy Kasdin, Tyler D. Groff, Julien Lozi, Vincent Deo, Sebastien Vievard, Jeffrey Chilcote, Nemanja Jovanovic, Frantz Martinache, Nour Skaf, Thomas Henning, Gillian Knapp, Jungmi Kwon, Michael W. McElwain, Tae-Soo Pyo, Michael L. Sitko, Taichi Uyama, Kevin Wagner |
| المساهمون: | Université Côte d'Azur, Observatoire de la Côte d'Azur, CNRS, Laboratoire Lagrange, Nice, France, National Astronomical Observatory of Japan (NAOJ), Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), University of California [Santa Barbara] (UCSB), University of California, Princeton University, NASA Goddard Space Flight Center (GSFC), National Astronomical Observatory of Japan, Subaru Telescope, 650 North A‘ohoku Place, Hilo, HI 96720, United States, University of Notre Dame [Indiana] (UND), California Institute of Technology (CALTECH), Laboratoire d'études spatiales et d'instrumentation en astrophysique (LESIA (UMR_8109)), 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 de Paris (UP), Max-Planck-Institut für Astronomie (MPIA), Max-Planck-Gesellschaft, ISAS/JAXA, NASA |
| المصدر: | The Astronomical Journal The Astronomical Journal, American Astronomical Society, 2021, 162 (6), pp.293. ⟨10.3847/1538-3881/ac2823⟩ |
| بيانات النشر: | HAL CCSD, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Earth and Planetary Astrophysics (astro-ph.EP), 010309 optics, Astrophysics - Solar and Stellar Astrophysics, Space and Planetary Science, 0103 physical sciences, FOS: Physical sciences, Astronomy and Astrophysics, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], 010303 astronomy & astrophysics, 01 natural sciences, Solar and Stellar Astrophysics (astro-ph.SR), Astrophysics - Earth and Planetary Astrophysics |
| الوصف: | We present the first multi-wavelength (near-infrared; $1.1 - 2.4$ $\mu m$) imaging of HD 36546's debris disk, using the Subaru Coronagraphic Extreme Adaptive Optics (SCExAO) system coupled with the Coronagraphic High Angular Resolution Imaging Spectrograph (CHARIS). As a 3-10 Myr old star, HD 36546 presents a rare opportunity to study a debris disk at very early stages. SCExAO/CHARIS imagery resolves the disk over angular separations of $\rho \sim 0.25" - 1.0"$ (projected separations of $\rm{r_{proj}} \sim 25 - 101$ $\rm{au}$) and enables the first spectrophotometric analysis of the disk. The disk's brightness appears symmetric between its eastern and western extents and it exhibits slightly blue near-infrared colors on average (e.g. $J-K =-0.4\pm0.1$) $-$ suggesting copious sub-micron sized or highly porous grains. Through detailed modeling adopting a Hong scattering phase function (SPF), instead of the more common Henyey-Greenstein function, and using the differential evolution optimization algorithm, we provide an updated schematic of HD 36546's disk. The disk has a shallow radial dust density profile ($\alpha_{in} \approx 1.0$ and $\alpha_{out} \approx -1.5$), a fiducial radius of $r_0 \approx 82.7$ au, an inclination of $i \approx 79.1^\circ$, and a position angle of $\rm PA \approx 80.1^\circ$. Through spine tracing, we find a spine that is consistent with our modeling, but also with a "swept-back wing" geometry. Finally, we provide constraints on companions, including limiting a companion responsible for a marginal Hipparcos-Gaia acceleration to a projected separation of $\lesssim 0.2''$ and to a minimum mass of $\lesssim 11$ $\rm M_{Jup}$. Comment: 23 pages, 19 figures; corrected an error in the abstract, added a reference in Section 2 |
| وصف الملف: | application/pdf |
| اللغة: | English |
| تدمد: | 0004-6256 1538-3881 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e13237170e65c2fb4d18c05a3a1d49ec https://hal.archives-ouvertes.fr/hal-03518281 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....e13237170e65c2fb4d18c05a3a1d49ec |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 00046256 15383881 |
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