JWST/MIRI Imaging of the Warm Dust Component of the Epsilon Eridani Debris Disk
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arXiv
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2025
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| author | Wolff, Schuyler G. Gáspár, András Rieke, George Leisenring, Jarron M. Sefilian, Antranik A. Ygouf, Marie Llop-Sayson, Jorge |
| author_facet | Wolff, Schuyler G. Gáspár, András Rieke, George Leisenring, Jarron M. Sefilian, Antranik A. Ygouf, Marie Llop-Sayson, Jorge |
| contents | We present JWST/MIRI observations of the debris disk surrounding the nearby, solar analog Epsilon Eridani obtained as part of the Archetypal Debris Disk GTO program. Multi-wavelength images from 15, 18, 21, and 25.5 $μm$ show a smooth dust distribution with no evidence of sculpting by massive planets outside of 5 au. Maps of the color temperature and opacity constrain the dust properties while radiative transfer modeling of a warm dust component traces the interaction between the debris disk and Epsilon Eri b ($\sim$3.5 au). Dynamical and collisional modeling further shows that the disk morphology is dominated by dust produced in the outer planetesimal belt ($\sim 70 \, au$) moving inward via stellar wind drag. We confirm the presence of a disk interior to the Epsilon Eri b orbit first detected from mid-IR interferometry. Drag dominated inner disk regions have also been observed around Vega and Fomalhaut hinting at the diversity of asteroid belt analogs. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2509_24976 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | JWST/MIRI Imaging of the Warm Dust Component of the Epsilon Eridani Debris Disk Wolff, Schuyler G. Gáspár, András Rieke, George Leisenring, Jarron M. Sefilian, Antranik A. Ygouf, Marie Llop-Sayson, Jorge Earth and Planetary Astrophysics We present JWST/MIRI observations of the debris disk surrounding the nearby, solar analog Epsilon Eridani obtained as part of the Archetypal Debris Disk GTO program. Multi-wavelength images from 15, 18, 21, and 25.5 $μm$ show a smooth dust distribution with no evidence of sculpting by massive planets outside of 5 au. Maps of the color temperature and opacity constrain the dust properties while radiative transfer modeling of a warm dust component traces the interaction between the debris disk and Epsilon Eri b ($\sim$3.5 au). Dynamical and collisional modeling further shows that the disk morphology is dominated by dust produced in the outer planetesimal belt ($\sim 70 \, au$) moving inward via stellar wind drag. We confirm the presence of a disk interior to the Epsilon Eri b orbit first detected from mid-IR interferometry. Drag dominated inner disk regions have also been observed around Vega and Fomalhaut hinting at the diversity of asteroid belt analogs. |
| title | JWST/MIRI Imaging of the Warm Dust Component of the Epsilon Eridani Debris Disk |
| topic | Earth and Planetary Astrophysics |
| url | https://arxiv.org/abs/2509.24976 |