The Nature Index 2025 Research Leaders — previously known as Annual Tables — reveal the leading institutions and countries/territories in the natural and health sciences, according to their output in ...

【本文由小黑盒作者@码流搬运工于06月04日发布，转载请标明出处！】 近日，一支由中国科学院云南天文台牵头的国际研究团队利用行星过境定时变化（Transit Timing Variation，简称TTV）技术，首次在一颗类太阳恒星的宜居带内发现了一颗质量约为地球10倍的“超级 ...

We present new ways to identify single and multiple moons around extrasolar planets using planetary transit timing variations (TTVs) and transit duration variations (TDVs). For planets with one moon, ...

A team of astronomers from Germany, Bulgaria, and Poland has used a completely new technique to find an exotic extrasolar planet. The same approach is sensitive enough to find planets as small as ...

Figure 5. MEGNO stability maps superimposed on an upper mass-limit function of a hypothetical perturber. A MEGNO of around 2 indicates quasi-periodic (regular) orbits. A MEGNO of 5 or larger indicates ...

A team of astronomers from Germany, Bulgaria and Poland have used a completely new technique to find an exotic extrasolar planet. The same approach is sensitive enough to find planets as small as the ...

Transit timing variations (TTVs) of exoplanets are normally interpreted as the consequence of gravitational interaction with additional bodies in the system. However, TTVs can also be caused by ...

Astronomers from Germany, Bulgaria and Poland have used a completely new technique to find an exotic extrasolar planet. The same approach is sensitive enough to find planets as small as the Earth in ...