ATLAST detector needs for direct spectroscopic biosignature characterization in the visible and near-IR

TL;DR

This paper discusses the detector requirements for the ATLAST space telescope to effectively perform spectroscopic biosignature detection in the visible and near-IR spectrum, emphasizing technological needs and advancements.

Contribution

It provides a detailed overview of detector needs for ATLAST's biosignature spectroscopy and updates on promising detector technologies for future implementation.

Findings

Identifies key detector specifications for biosignature spectroscopy.

Highlights promising detector technologies suitable for ATLAST.

Emphasizes the importance of advanced detectors for future space telescopes.

Abstract

Are we alone? Answering this ageless question will be a major focus for astrophysics in coming decades. Our tools will include unprecedentedly large UV-Optical-IR space telescopes working with advanced coronagraphs and starshades. Yet, these facilities will not live up to their full potential without better detectors than we have today. To inform detector development, this paper provides an overview of visible and near-IR (VISIR; $\lambda=0.4-1.8~\mu\textrm{m}$) detector needs for the Advanced Technology Large Aperture Space Telescope (ATLAST), specifically for spectroscopic characterization of atmospheric biosignature gasses. We also provide a brief status update on some promising detector technologies for meeting these needs in the context of a passively cooled ATLAST.