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Rocky exoplanets orbiting in the habitable zone (HZ) of nearby M dwarfsprovide unique opportunities for characterizing their atmospheres and searchingfor biosignature gases. TRAPPIST-1e, a temperate Earth-sized exoplanet in theHZ of a nearby M dwarf, is arguably the most favorable target for ground- andspace-based atmospheric characterization by the extremely large telescopes(ELTs) and the James Webb Space Telescope (JWST). To inform future observationsin reflected and emitted lights using these upcoming telescopes, we simulatethe high-resolution reflection and emission spectra for TRAPPIST-1e for bothmodern and prebiotic Earth-like atmospheric compositions. To demonstrate theeffects of wavelength-dependent albedo on climate and spectra, we furthersimulate five albedo scenarios for each atmospheric composition: cloudy modernEarth-like, cloud-free modern Earth-like, cloudy ocean planet, 100 per centcloudy planet, and wavelength-independent albedo of 0.31. We use the recentMega-MUSCLES spectral energy distribution (SED) of TRAPPIST-1 for our models.We show that the O$_2$ + CH$_4$ and O$_3$ + CH$_4$ biosignature pairs as wellas climate indicators (CO$_2$ and H$_2$O) show features in both high-resolutionreflection and emission spectra of TRAPPIST-1e that the ELTs can search for.Our high-resolution database for modern and prebiotic Earth TRAPPIST-1e modelswith various surface compositions and cloud distributions provides a tool forobservers to train retrieval algorithms and plan observation strategies tocharacterize this potentially habitable world.

High-Resolution spectral models of TRAPPIST-1e seen as a Pale Blue Dot for ELT and JWST observations