Overview of the Habitable Exoplanet Observatory (HabEx) Concept Architecture
| Autor: | Stefan Martin, Gary M. Kuan |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Solar System
Computer science Astrophysics::Instrumentation and Methods for Astrophysics Astronomy Astrophysics::Cosmology and Extragalactic Astrophysics 02 engineering and technology Planetary system 021001 nanoscience & nanotechnology 01 natural sciences Galaxy Exoplanet law.invention 010309 optics Telescope Spitzer Space Telescope law Observatory 0103 physical sciences Astrophysics::Solar and Stellar Astrophysics Astrophysics::Earth and Planetary Astrophysics 0210 nano-technology Coronagraph Spectrograph |
| Zdroj: | 2019 IEEE Aerospace Conference. |
| Popis: | The Habitable Exoplanet Observatory (HabEx) is one of four large mission studies commissioned by NASA for the 2020 Decadal Survey in Astrophysics. HabEx has identified three driving science goals: 1) to seek out nearby worlds and explore their habitability, 2) to map out nearby planetary systems and underst the diversity of the worlds they contain, and 3) to enable new explorations of astrophysical systems from our solar system to galaxies and the universe by extending our reach in the UV through near-IR To achieve these goals, the HabEx study has baselined a space telescope at Sun-Earth L2, with a 4 m aperture and four science instruments - a coronagraph, a starshade, a high resolution UV spectrograph, and a multi-purpose, wide-field camera. The second part of the observatory is an external starshade occulter of 52 m diameter. To achieve the precision and stability required for the coronagraph to image earth-sized exoplanets to better than 10−10 contrast, the telescope flight system is equipped with a vector vortex coronagraph and colloidal electrospray microthrusters. The telescope takes advantage of the mass and volume launch capability of NASA's SLS Block 1 B delivery system with a separate launch for the starshade on a smaller vehicle. In this paper, we provide an overview of the HabEx telescope flight system that would advance astrophysical science in the same spirit as the Hubble Space Telescope well into this century. |
| Databáze: | OpenAIRE |
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