UVSPEX/WSO-UV for Earth-like exoplanetary oxygen exospheres

Shingo Kameda; Go Murakami; Alexander Tavrov; Keigo Enya; M. Sachkov; Masahiro Ikoma; Norio Narita; Oleg Korablev

doi:10.1117/12.2576260

13 December 2020 UVSPEX/WSO-UV for Earth-like exoplanetary oxygen exospheres

Shingo Kameda, Go Murakami, Alexander Tavrov, Keigo Enya, M. Sachkov, Masahiro Ikoma, Norio Narita, Oleg Korablev

Proceedings Volume 11444, Space Telescopes and Instrumentation 2020: Ultraviolet to Gamma Ray; 114440L (2020) https://doi.org/10.1117/12.2576260
Event: SPIE Astronomical Telescopes + Instrumentation, 2020, Online Only

Abstract

Many Earth-sized planets have been discovered and some of them are potentially in the habitable zone. In addition, several Earth-sized planets have been detected around low temperature stars near our solar system. However, it is difficult to characterize them as Earth-like or Venus-like, even though they are relatively very close to our solar system. We performed a conceptual design of an Ultraviolet Spectrograph for Exoplanet (UVSPEX) for World Space Observatory Ultraviolet (WSO-UV), which is 1.7-m UV space telescope being prepared by Russia. The spectral range is to exceed wavelengths from 115 nm to 135 nm to detect at least H Lyman alpha 121.6nm to O I 130 nm. The throughput is >4%. UVSPEX is planned to be a part of a Field Camera Unit (FCU). This additional instrument would enable us to observe ~20 Earth-like exoplanets and detect an oxygen exosphere if some of them have an Earth-like atmosphere.

Conference Presentation

Citation Download Citation

Shingo Kameda, Go Murakami, Alexander Tavrov, Keigo Enya, M. Sachkov, Masahiro Ikoma, Norio Narita, and Oleg Korablev "UVSPEX/WSO-UV for Earth-like exoplanetary oxygen exospheres", Proc. SPIE 11444, Space Telescopes and Instrumentation 2020: Ultraviolet to Gamma Ray, 114440L (13 December 2020); https://doi.org/10.1117/12.2576260

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