Exoplanetary Circumstellar Environments and Disk Explorer
 | This article needs to be updated. (February 2021) |
| Mission type | Space observatory | |
|---|---|---|
| Website | soweb | |
| Mission duration | 3 years nominal (proposed)[1] | |
| Orbital parameters | ||
| Reference system | Semi-major axis 2,000 km | |
| Inclination | 105° | |
| Period | 127 min | |
| Main | ||
| Diameter | 70 cm (28 in)[1] | |
| Instruments | ||
Explorers program[1] | ||
Exoplanetary Circumstellar Environments and Disk Explorer (EXCEDE) is a proposed
spectral classes M to B.[1]
Had it been selected for development, it was proposed to launch in 2019.
The spacecraft concept proposed to use a 70 centimeter diameter telescope-mounted coronagraph called PIAA (Phase Induced Amplitude Apodized Coronagraph) to suppress starlight in order to be able to detect fainter radiation of circumstellar dust.[1] Characterizing constitution of such disks would provide clues for planetary formation (mostly in habitable zones), while already existing exoplanets can be detected through their interaction with dust disk. The project's Principal Investigator is Glenn Schneider.[1]
Science goals
The science goals of the concept mission are: [1]
- Explore the amount of dust in habitable zones
- Determining if such a disk interferes with future planet finding missions (dust-scattered starlight causes noise in images of exoplanets[2])
- Determine composition of material delivered to planets: icy and organich-rich particles are important for life.[3]
- Determine fraction of massive planets on large orbits
- Observe how protoplanetary disks make Solar System-like architectures
- Constrain AU).[5]
References
- ^
- ^ "Future Mission Impacts?". Glenn Schneider. Archived from the original on 27 August 2016. Retrieved 25 February 2012.
- ^ "Delivery of Planet Veneers". Glenn Schneider. Archived from the original on 16 March 2016. Retrieved 25 February 2012.
- ^ "CS Disks: Signposts of Planets". Glenn Schneider. Archived from the original on 27 August 2016. Retrieved 24 February 2012.
- ^ "Cool Giant Exoplanets". Glenn Schneider. Archived from the original on 15 March 2016. Retrieved 25 February 2012.
| Missions |
| .png){kind=spacer} | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Proposals |
| |||||||||
| ||||||||||
| |||||||||||
| Ground-based |
|    | |||||||||
| Space missions |
| ||||||||||
| Related |
| ||||||||||
| Operating |
| ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Planned |
| ||||||||||||
Proposed |
| ||||||||||||
| Retired |
| ||||||||||||
| Hibernating (Mission completed) | |||||||||||||
| Lost/Failed | |||||||||||||
| Cancelled | |||||||||||||
| Related | |||||||||||||
 | This article about one or more spacecraft of the United States is a stub. You can help Wikipedia by expanding it. |