Exoplanetary Circumstellar Environments and Disk Explorer

Exoplanetary Circumstellar Environments and Disk Explorer
Mission typeSpace observatory
Websitesoweb.as.arizona.edu/~gschneider/EXCEDE_OVERVIEW.html
Mission duration3 years nominal (proposed)[1]
Orbital parameters
Reference systemGeocentric
RegimeSun Synchronous
Semi-major axis2,000 km
Inclination105°
Period127 min
Main
Diameter70 cm (28 in)[1]
Instruments
Imaging polarimeter
 

Exoplanetary Circumstellar Environments and Disk Explorer (EXCEDE) is a proposed space telescope for NASA's Explorer program to observe circumstellar protoplanetary and debris discs and study planet formation around nearby (within 100 parsecs) stars of 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]

References[]

  1. ^ a b c d e f g The EXoplanetary Circumstellar Environments and Disk Explorer (EXCEDE). (PDF). Olivier Guyon, Glenn Schneider, Ruslan Belikov, Domenick J. Tenerelli. arXive repository. 10 October 2012. doi:10.1117/12.927188
  2. ^ "Future Mission Impacts?". Glenn Schneider. Retrieved 25 February 2012.
  3. ^ "Delivery of Planet Veneers". Glenn Schneider. Retrieved 25 February 2012.
  4. ^ "CS Disks: Signposts of Planets". Glenn Schneider. Retrieved 24 February 2012.
  5. ^ "Cool Giant Exoplanets". Glenn Schneider. Retrieved 25 February 2012.