Short items of interest to the interstellar exploration community.

02Jul/19

July 2, 2019 updates

Persistence of Technosignatures: A Comment on Lingam and Loeb https://liebertpub.com/doi/10.1089/ast.2019.2052 Testing gravity with interstellar precursor missions https://arxiv.org/abs/1907.00006 The CARMENES search for exoplanets around M dwarfs — Photospheric parameters of target stars from

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01Jul/19

July 1, 2019 updates

A sub-Neptune exoplanet with a low-metallicity methane-depleted atmosphere and Mie-scattering clouds https://www.nature.com/articles/s41550-019-0800-5 The natural history of ‘Oumuamua https://www.nature.com/articles/s41550-019-0816-x An emission spectrum for WASP-121b measured across the 0.8– wavelength range using the Hubble

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28Jun/19

June 28, 2019 Updates

Ploonets: formation, evolution, and detectability of tidally detached exomoons https://arxiv.org/abs/1906.11400 Overcast on Osiris: 3D radiative-hydrodynamical simulations of a cloudy hot Jupiter using the parameterised, phase-equilibrium cloud formation code EddySed https://arxiv.org/list/astro-ph/new Upper limits

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27Jun/19

June 27, 2019 updates

Main instrument for NASA’s WFIRST mission completes milestone review https://spacenewsfeed.com/index.php/news/3366-main-instrument-for-nasa-s-wfirst-mission-completes-milestone-review Constraints on HD 113337 fundamental parameters and planetary system: Combining long-base visible interferometry, disc imaging, and high-contrast imaging https://www.aanda.org/articles/aa/full_html/2019/07/aa35494-19 TESS Hunt for

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26Jun/19

June 26, 2019 updates

On Alien Worlds, Extraterrestrials Could Be Spewing a Toxic, Smelly Gas. That’s How We Could Find Them. https://www.livescience.com/65791-alien-life-may-spew-toxic-gas.html Modelling galactic settlement https://phys.org/news/2019-06-galactic-settlement.html 10th Global Trajectory Optimisation Competition https://gtocx.jpl.nasa.gov/gtocx/ Three Red Suns in

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24Jun/19

June 24, 2019 updates

Do Active Galactic Nuclei Help or Hurt Life? https://aasnova.org/2019/05/29/do-active-galactic-nuclei-help-or-hurt-life/ Self-excited oscillation of spinning solar sails utilizing solar radiation pressure https://link.springer.com/article/10.1007/s42064-018-0047-4 CO Detected in Ci Tau b: Hot Start Implied by Planet Mass

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21Jun/19

June 21, 2019 Updates

Directly testing gravity with Proxima Centauri https://arxiv.org/abs/1906.08264 Survivability of radio-loud planetary cores orbiting white dwarfs https://arxiv.org/abs/1906.08273 Fast Computational Convolution Methods For Extended Source Effects In Microlensing Lightcurves https://arxiv.org/abs/1906.08378 Transit modelling of selected

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20Jun/19

June 20, 2019 updates

Toward Autonomous Navigation of Spacecraft on the Observed Periodic Radiation of Pulsars http://matisaac.org/images/PaperPDF/AdAp_100126_2019052717111204142.pdf Towards a General Definition of Life https://link.springer.com/article/10.1007/s11084-019-09578-5 Formation Design of Distributed Telescopes in Earth Orbit for Astrophysics Applications https://arc.aiaa.org/doi/10.2514/1.A34420

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19Jun/19

June 19, 2019 updates

Breakthrough Listen Publishes Most Comprehensive and Sensitive Search for Radio Technosignatures Ever Performed https://breakthroughinitiatives.org/news/25 Breakthrough Listen Open Data Archive http://seti.berkeley.edu/opendata The Breakthrough Listen Search for Intelligent Life: Public Data, Formats, Reduction and

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