  We present a citation pattern analysis between astronomical papers and 13
other disciplines, based on the arXiv database over the past decade ($2010 -
2020$). We analyze 12,600 astronomical papers citing over 14,531 unique
publications outside astronomy. Two striking patterns are unraveled. First,
general relativity recently became the most cited field by astronomers, a trend
highly correlated with the discovery of gravitational waves. Secondly, the fast
growth of referenced papers in computer science and statistics, the first with
a notable 15-fold increase since 2015. Such findings confirm the critical role
of interdisciplinary efforts involving astronomy, statistics, and computer
science in recent astronomical research.
