JWST/MIRI Imaging of the Warm Dust Component of the Epsilon Eridani Debris Disk

Abstract

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 $\mu m$ 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 70au$) 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.

References in corpus (21)

• Improved Age Estimation for Solar-Type Dwarfs Using Activity-Rotation Diagnostics
• Monte Carlo radiative transfer in protoplanetary disks
• Long-Term Collisional Evolution of Debris Disks
• The HOSTS survey for exozodiacal dust: Observational results from the complete survey
• A Complete ALMA Map of the Fomalhaut Debris Disk
• Planetary chaotic zone clearing: destinations and timescales
• The Northern Arc of $\epsilon$ Eridani's Debris Ring as Seen by ALMA
• The effect of dust composition and shape on radiation-pressure forces and blowout sizes of particles in debris disks
• Spatially resolved imaging of the inner Fomalhaut disk using JWST/MIRI
• Constraining the Orbit and Mass of epsilon Eridani b with Radial Velocities, Hipparcos IAD-Gaia DR2 Astrometry, and Multi-epoch Vortex Coronagraphy Upper Limits
• The unexpected narrowness of eccentric debris rings: a sign of eccentricity during the protoplanetary disc phase
• Precision angular diameters for 16 southern stars with VLTI/PIONIER
• JWST MIRI Flight Performance: Imaging
• On the nature of clumps in debris disks
• The clumpy structure of $\epsilon$ Eridani's debris disc revisited by ALMA
• Revised orbits of the two nearest Jupiters
• X-ray detection of astrospheres around three main-sequence stars and their mass-loss rates
• Hiding Dust Around $\epsilon$ Eridani
• SPHERE RefPlanets: Search for epsilon Eridani b and warm dust
• Deepest limits on scattered light emission from the Epsilon Eridani inner debris disk with HST/STIS
• Radial velocity analysis of stars with debris discs

Cited by in corpus (1)

• The ALMA survey to Resolve exoKuiper belt Substructures (ARKS) V: Comparison between scattered light and thermal emission