Direct Imaging for the Debris Disk around $ε$ Eridani with the Cool-Planet Imaging Coronagraph
Fuente:
arXiv
Enregistré dans:
| Auteurs principaux: | , , , , , , |
|---|---|
| Format: | Preprint |
| Publié: |
2025
|
| Sujets: | |
| Accès en ligne: | |
| Tags: |
Ajouter un tag
Pas de tags, Soyez le premier à ajouter un tag!
|
| _version_ | 1866917365153792000 |
|---|---|
| author | Bao, Chunhui Ji, Jianghui Zhao, Gang Zhu, Yiming Dou, Jiangpei Wang, Su Dong, Yao |
| author_facet | Bao, Chunhui Ji, Jianghui Zhao, Gang Zhu, Yiming Dou, Jiangpei Wang, Su Dong, Yao |
| contents | We analyze the inner debris disk around $ε$ Eridani using simulated observations with the Cool-Planet Imaging Coronagraph (CPI-C). Using the radiative transfer code MCFOST, we generate synthetic scattered-light images and spectral energy distributions for three disk models that differ in inclination and radial extent, and compare these results with the anticipated performance of CPI-C. CPI-C can resolve disk structures down to $\sim$3 au, offering substantially finer spatial resolution than existing HST/STIS and Spitzer/IRS observations. Recovered inclinations and radial extents closely match the input models, constraining the disk geometry and informing potential planet-disk interactions in the $ε$ Eri system. Although the cold Jupiter-like planet $ε$ Eri b is not detected in our simulations, polarimetric methods may enable detection of its reflected light. These results highlight the capability of next-generation coronagraphs to probe cold dust in nearby planetary systems. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_16761 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Direct Imaging for the Debris Disk around $ε$ Eridani with the Cool-Planet Imaging Coronagraph Bao, Chunhui Ji, Jianghui Zhao, Gang Zhu, Yiming Dou, Jiangpei Wang, Su Dong, Yao Earth and Planetary Astrophysics Instrumentation and Methods for Astrophysics Solar and Stellar Astrophysics Space Physics We analyze the inner debris disk around $ε$ Eridani using simulated observations with the Cool-Planet Imaging Coronagraph (CPI-C). Using the radiative transfer code MCFOST, we generate synthetic scattered-light images and spectral energy distributions for three disk models that differ in inclination and radial extent, and compare these results with the anticipated performance of CPI-C. CPI-C can resolve disk structures down to $\sim$3 au, offering substantially finer spatial resolution than existing HST/STIS and Spitzer/IRS observations. Recovered inclinations and radial extents closely match the input models, constraining the disk geometry and informing potential planet-disk interactions in the $ε$ Eri system. Although the cold Jupiter-like planet $ε$ Eri b is not detected in our simulations, polarimetric methods may enable detection of its reflected light. These results highlight the capability of next-generation coronagraphs to probe cold dust in nearby planetary systems. |
| title | Direct Imaging for the Debris Disk around $ε$ Eridani with the Cool-Planet Imaging Coronagraph |
| topic | Earth and Planetary Astrophysics Instrumentation and Methods for Astrophysics Solar and Stellar Astrophysics Space Physics |
| url | https://arxiv.org/abs/2509.16761 |