Exoplanets & Exomoons

Observational Characteristics Of Circum-planetary-mass-object Disks In The Era Of James Webb Space Telescope

By Keith Cowing
Status Report
astro-ph.EP
June 17, 2024
Filed under , , , , , , , , , , , ,
Observational Characteristics Of Circum-planetary-mass-object Disks In The Era Of James Webb Space Telescope
Color-color diagram of CMPOD models around hot and cool hosts (left) and around hot host only (right) in JWST filters. Symbols are same as Figure 3. About a quarter of our models are randomly picked to make the scatter plot. — astro-ph.EP

Recent observations have confirmed circumplanetary disks (CPDs) embedded in parental protoplanetary disks (PPDs). On the other hand, planetary-mass companions (PMCs) and planetary-mass objects (PMOs) are likely to harbor their own accretion disks.

Unlike PPDs, CPDs and other disks around planet analogues are generally too compact to be spatially resolved by current instrumentation. In this study, we generate over 4,000 spectral energy distributions (SEDs) of circum-PMO-disks (CPMODs) with various host temperature and disk properties, which can be categorized into four prototypes, i.e., full, pre-transitional, transitional and evolved CPMODs. We propose a classification scheme based on their near-to-mid-infrared colors.

Using those CPMOD models, we synthesize JWST (NIRCam and MIRI) photometry for F444W, F1000W and F2550W wide filters. We show F444W – F1000W and F444 – F2550W colors can be applied to distinguish different types of CPMODs, especially for those around hot hosts. Our results indicate that the ongoing and future JWST observations are promising to unveil structures and properties of CPMODs.

Xilei Sun, Pinghui Huang, Ruobing Dong, Shang-Fei Liu

Comments: 18 pages, 7 figures, accepted for publication in ApJ
Subjects: Earth and Planetary Astrophysics (astro-ph.EP); Solar and Stellar Astrophysics (astro-ph.SR)
Cite as: arXiv:2406.09501 [astro-ph.EP] (or arXiv:2406.09501v1 [astro-ph.EP] for this version)
Submission history
From: Shangfei Liu
[v1] Thu, 13 Jun 2024 18:00:02 UTC (12,096 KB)
https://arxiv.org/abs/2406.09501
Astrobiology

Explorers Club Fellow, ex-NASA Space Station Payload manager/space biologist, Away Teams, Journalist, Lapsed climber, Synaesthete, Na’Vi-Jedi-Freman-Buddhist-mix, ASL, Devon Island and Everest Base Camp veteran, (he/him) 🖖🏻