July 20, 2021 updates Posted on July 20, 2021 by Doug Loss A differentiable N-body code for transit timing and dynamical modeling – I. Algorithm and derivatives https://academic.oup.com/mnras/advance-article-abstract/doi/10.1093/mnras/stab2044/6324024 Super-Earths and Sub-Neptunes Are Insensitive to Stellar Metallicity https://iopscience.iop.org/article/10.3847/1538-3881/ac0431 Wolf 503 b: Characterization of a Sub-Neptune Orbiting a Metal-Poor K Dwarf https://arxiv.org/abs/2107.08092 The post-transit tail of WASP-107b observed at 10830A https://arxiv.org/abs/2107.08999