Special Section on a Future Large-Aperture Ultraviolet/Optical/Infrared Space Observatory

Extension of ATLAST/LUVOIR’s capabilities to 5 μm or beyond

[+] Author Affiliations
Michael Werner, Mark Swain, Gautam Vasisht, Xu Wang, Steven Macenka

Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, California 91109, United States

Avi Mandell, Shawn Domagal-Goldman

NASA Goddard Space Flight Center, 8800 Greenbelt Road, Greenbelt, Maryland 20771, United States

Joel Green, Chris Stark

Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, Maryland 21218, United States

J. Astron. Telesc. Instrum. Syst. 2(4), 041205 (Jun 22, 2016). doi:10.1117/1.JATIS.2.4.041205
History: Received February 19, 2016; Accepted May 13, 2016
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Abstract.  ATLAST is a particular realization of the Large Ultraviolet Optical Infrared telescope (LUVOIR), a 10-m diameter space telescope being defined for consideration in the 2020 Decadal Review of astronomy and astrophysics. ATLAST/LUVOIR is generally thought of as an ambient temperature (300  K) system, and little consideration has been given to using it at infrared wavelengths longward of 2  μm. We assess the scientific and technical benefits of operating such a telescope further into the infrared, with particular emphasis on the study of exoplanets, which is a major science theme for ATLAST/LUVOIR. For the study of exoplanet atmospheres, the capability to work at least out to 5.0  μm is highly desirable. Such an extension of the long wavelength limit of ATLAST would greatly increase its capabilities for studies of exoplanet atmospheres and provide powerful capabilities for the study of a wide range of astrophysical questions. We present a concept for a fiber-fed grating spectrometer, which would enable R=200 spectroscopy on ATLAST with minimal impact on the other focal planet instruments. We conclude that it is technically feasible and highly desirable scientifically to extend the wavelength range of ATLAST to at least 5  μm.

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© 2016 Society of Photo-Optical Instrumentation Engineers

Citation

Michael Werner ; Mark Swain ; Gautam Vasisht ; Xu Wang ; Steven Macenka, et al.
"Extension of ATLAST/LUVOIR’s capabilities to 5 μm or beyond", J. Astron. Telesc. Instrum. Syst. 2(4), 041205 (Jun 22, 2016). ; http://dx.doi.org/10.1117/1.JATIS.2.4.041205


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