arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1603.09428astro-ph.EP
收藏

SET-E:寻找地外环境主义

SET-E: The Search for Extraterrestrial Environmentalism

Benjamin Montet, Ryan Loomis

摘要:

目前还没有证据表明任何已知的系外行星上存在生命。在这里,我们提出了一种形式的“银河人类学”,不仅要检测过境系外行星上生命的存在,而且要检测环境保护运动的存在。通过在长时间基线上观察行星的大气层,可以观察到系外行星臭氧层空洞的破坏和恢复。虽然不容易检测到任何一个系统与JWST,通过合并数百个系统的观测,我们最终可以确定银河系中类地行星的环境运动发生率,我们称之为eta-Green-Earth。

英文摘要:

There is currently no evidence for life on any known exoplanet. Here, we propose a form of "galactic anthropology" to detect not only the existence of life on transiting exoplanets, but also the existence of environmentalism movements. By observing the planet's atmosphere over long time baselines, the destruction and recovery of a hole in an exoplanet's ozone layer may be observable. While not readily detectable for any one system with JWST, by binning together observations of hundreds of systems we can finally determine the occurrence rate of environmental movements on Earthlike planets in the galaxy, a number we term eta-Green-Earth.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑