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.

September 28, 2023 updates

A robust, agnostic molecular biosignature based on machine learning
https://www.pnas.org/doi/abs/10.1073/pnas.2307149120

Toward an Etiology of Spaceflight Neuroplastic Syndrome: Evolutionary Science Leads to New Hypotheses and Program Priorities
https://www.mdpi.com/2673-4087/4/4/21

Thermodynamic limits on oxygenic photosynthesis around M-dwarf stars: Generalized models and strategies for optimization
https://arxiv.org/abs/2309.12845

Degenerate interpretations of O3 spectral features in exoplanet atmosphere observations due to stellar UV uncertainties: a 3D case study with TRAPPIST-1e
https://arxiv.org/abs/2309.15239

On the Effectiveness of the Planetary Infrared Excess (PIE) Technique to Retrieve the Parameters of Multiplanet Systems around M dwarfs: A Case Study on the TRAPPIST-1 System
https://arxiv.org/abs/2309.15267

The most sensitive SETI observations toward Barnard’s star with FAST
https://arxiv.org/abs/2309.15377

Evolution of a Water-rich Atmosphere Formed by a Giant Impact on an Earth-sized Planet
https://arxiv.org/abs/2309.15571

September 26, 2023 updates

A Conversational Framework for Interstellar Discourse on Fundamental Physical Structures
https://www.preprints.org/manuscript/202309.1510/v1

HST/WFC3 Light Curve Supports a Terrestrial Composition for the Closest Exoplanet to Transit an M Dwarf
https://iopscience.iop.org/article/10.3847/1538-3881/acf561

Relative abundances of CO2, CO, and CH4 in atmospheres of Earth-like lifeless planets
https://arxiv.org/abs/2309.13538

Planets around evolved intermediate-mass stars III. Planet candidates and long-term activity signals in six open clusters
https://arxiv.org/abs/2309.13589

Mitigating Worst-Case Exozodiacal Dust Structure in High-contrast Images of Earth-like Exoplanets
https://arxiv.org/abs/2309.14234

September 25, 2023 Updates

Life Beyond Earth
https://link.springer.com/chapter/10.1007/978-3-031-23397-5_19

Modified Newtonian Dynamics as an Alternative to the Planet Nine Hypothesis
https://iopscience.iop.org/article/10.3847/1538-3881/acef1e

Planetesimals at DZ stars I: chondritic compositions and a massive accretion event
https://academic.oup.com/mnras/advance-article/doi/10.1093/mnras/stad2867/7281028?searchresult=1

First light of VLT/HiRISE: High-resolution spectroscopy of young giant exoplanets
https://arxiv.org/abs/2309.12390

The Astronomy Genealogy Project is ten years old: Here are ten ways you can use it
https://arxiv.org/abs/2309.12456

Population synthesis of exoplanets accounting for orbital variations due to stellar evolution
https://arxiv.org/abs/2309.12635

September 22, 2023 updates

Visual Orbits and Alignments of Planet-hosting Binary Systems
https://iopscience.iop.org/article/10.3847/1538-3881/acf563

Tidally Excited Inertial Waves in Stars and Planets: Exploring the Frequency-dependent and Averaged Dissipation with Nonlinear Simulations
https://iopscience.iop.org/article/10.3847/2041-8213/acf49f

Thermal Conductivity of Hydrogen at High Pressure and High Temperature: Implications to Giant Planets
https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2023GL103994

Tidal Dissipation in Satellites Prevents Hill Sphere Escape
https://arxiv.org/abs/2309.11609

The possibility of detecting our solar system through astrometry
https://arxiv.org/abs/2309.11729

Beyond the Drake Equation: A Time-Dependent Inventory of Habitable Planets and Life-Bearing Worlds in the Solar Neighborhood
https://arxiv.org/abs/2309.11927

Magnetic Fusion Plasma Drive
https://arxiv.org/abs/2309.11524