Interstellar Updates

These are items of interest to the interstellar exploration community that we’ve found in our quest for information that will help us advance toward our goals.  If you know of anything we’ve overlooked, or any sources of such information we should monitor, or if you would like to be added to our IRG-updates mailing list and receive these updates in you email every weekday, please send that information to info@irg.space.

You can now search our database of interstellar updates and find items of interest to you.

April 9, 2021 updates

Revision of “Dependence of climate states of gray atmosphere on solar constant: From the runaway greenhouse to the snowball states” by Ishiwatari et al. (2007)
https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2019JD031761

Discovery of the First Interstellar Comet and the Spatial Density of Interstellar Objects in the Solar Neighborhood
https://link.springer.com/article/10.1134%2FS0038094621020027

Extending a grid of hydrodynamic planetary upper atmosphere models
https://arxiv.org/abs/2104.03796

The Trouble with “Puddle Thinking”: A User’s Guide to the Anthropic Principle
https://arxiv.org/abs/2104.03381

April 8, 2021 updates

Irradiance Variations of the Sun and Sun-Like Stars – Overview of Topical Collection
https://link.springer.com/article/10.1007/s11207-021-01802-8

Five carbon- and nitrogen-bearing species in a hot giant planet’s atmosphere
https://www.nature.com/articles/s41586-021-03381-x

Transit Analysis of HATS-4 b by Citizen Scientists
https://iopscience.iop.org/article/10.3847/2515-5172/abf496

Quantifying the Classification of Exoplanets: in Search for the Right Habitability Metric
https://arxiv.org/abs/2104.02991

RAFTER: Ring Astrometric Field Telescope for Exo-planets and Relativity
https://arxiv.org/abs/2104.03003

A transit timing variation observed for the long-period extremely low density exoplanet HIP 41378
https://arxiv.org/abs/2104.03159

April 7, 2021 updates

A search for a fifth planet around HR 8799 using the star-hopping RDI technique at VLT/SPHERE
https://www.aanda.org/articles/aa/full_html/2021/04/aa38794-20/aa38794-20.html

Wide-orbit exoplanets are common. Analysis of nearly 20 years of OGLE microlensing survey data
https://arxiv.org/abs/2104.02079

OGLE-2018-BLG-1185b : A Low-Mass Microlensing Planet Orbiting a Low-Mass Dwarf
https://arxiv.org/abs/2104.02157

Significant improvement in planetary system simulations from statistical averaging
https://arxiv.org/abs/2104.02179

Large density deficit of Earth’s core revealed by a multi-megabar primary pressure scale
https://arxiv.org/abs/2104.02076

April 6, 2021 updates

High-Accuracy Thrust Measurements of the EMDrive and Elimination of False-Positive Effects
https://www.researchgate.net/publication/350108418_High-Accuracy_Thrust_Measurements_of_the_EMDrive_and_Elimination_of_False-Positive_Effects

Evolutionary Panspermia: Planets Micro-Life and Beyond
https://www.researchgate.net/publication/349704978_Evolutionary_Panspermia_Planets_Micro-Life_and_Beyond

Efficiency of the oxygenic photosynthesis on Earth-like planets in the habitable zone
https://arxiv.org/abs/2104.01425

Of Aliens and Exoplanets: Why the search for life, probably, requires the search for water
https://arxiv.org/abs/2104.01683

Warm Jupiters in TESS Full-Frame Images: A Catalog and Observed Eccentricity Distribution for Year 1
https://arxiv.org/abs/2104.01970

High pCO2 reduces sensitivity to CO2 perturbations on temperate, Earth-like planets throughout most of habitable zone
https://arxiv.org/abs/2104.01224

April 5, 2021 updates

Solar Sail Propulsion by 2050: An Enabling Capability for Heliophysics Missions
https://www.hou.usra.edu/meetings/helio2050/pdf/4009.pdf

NASA’s Space Launch System Capabilities for Ultra-High C3 Missions
https://www.hou.usra.edu/meetings/helio2050/pdf/4057.pdf

Ectogenesis for survival in deep space and deep time: reply to Gale and Wandel
https://www.cambridge.org/core/journals/international-journal-of-astrobiology/article/ectogenesis-for-survival-in-deep-space-and-deep-time-reply-to-gale-and-wandel/0F9D05DD3756DA66799658F8959C1775

Near-term self-replicating probes – A concept design
https://www.sciencedirect.com/science/article/abs/pii/S009457652100117X

Astrobiology of life on Earth
https://sfamjournals.onlinelibrary.wiley.com/doi/10.1111/1462-2920.15499

Magnetic and tidal migration of close-in planets. Influence of secular evolution on their population
https://arxiv.org/abs/2104.01004

TRAPPIST Habitable Atmosphere Intercomparison (THAI) workshop report
https://arxiv.org/abs/2104.01091

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