September 16, 2019 updates Posted on September 16, 2019June 28, 2020 by Doug Loss Beam propagation simulation of large phased laser arrays https://www.spiedigitallibrary.org/conference-proceedings-of-spie/11107/111070O/Beam-propagation-simulation-of-large-phased-laser-arrays/10.1117/12.2528931.short SEEJ: SmallSat Exosphere Explorer of Hot Jupiters https://www.spiedigitallibrary.org/conference-proceedings-of-spie/11118/111180E/SEEJ-SmallSat-Exosphere-Explorer-of-Hot-Jupiters/10.1117/12.2529380.short Enabling a Near-Term Interstellar Probe with the NASA’s Space Launch System https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20190030464.pdf Hill stability of coplanar four-body systems with application to the Solar System and extrasolar systems https://link.springer.com/article/10.1007/s10509-019-3644-7 The Gran Telescopio Canarias (GTC) obtains the visible spectrum of C/2019 Q4 (Borisov), the first confirmed interstellar comet http://www.iac.es/divulgacion.php?op1=16&id=1610&lang=en Stellar accelerations and the galactic gravitational field https://www.cambridge.org/core/journals/publications-of-the-astronomical-society-of-australia/article/stellar-accelerations-and-the-galactic-gravitational-field/39E014B30E4CCF45B5136E6A597B5971 An Empirical Mass–Radius Relation for Cool Giant Planets https://iopscience.iop.org/article/10.3847/2515-5172/ab4353 Near-term interstellar probe: First step https://www.sciencedirect.com/science/article/pii/S0094576519303650 H2-Induced Pressure Broadening and Pressure Shift in the P-Branch of the ν3 Band of CH4 from 300 to 655 K https://www.sciencedirect.com/science/article/abs/pii/S0022407318306617 Effects of Magnetic Fields on the Location of the Evaporation Valley for Low-Mass Exoplanets https://arxiv.org/abs/1909.05866 The Likelihood of Detecting Young Giant Planets with High Contrast Imaging and Interferometry https://arxiv.org/abs/1909.05878 Sending a Spacecraft to Interstellar Comet C/2019 Q4 (Borisov) https://arxiv.org/abs/1909.06348