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.

February 14, 2025 updates

The Asymptote of Civilization
https://d197for5662m48.cloudfront.net/documents/publicationstatus/244823/preprint_pdf/d2c136425f5eeded90821b1c85e68066.pdf

Space Propulsion and Spaceship Design: A System Perspective
https://link.springer.com/book/10.1007/978-3-031-71336-1

A JWST Panchromatic Thermal Emission Spectrum of the Warm Neptune Archetype GJ 436b
https://zenodo.org/records/14814183

Correcting Transiting Lightcurves of Exoplanets From Non-linear Astrophysical and Instrumental Noise
https://zenodo.org/records/14793722

Encyclopedia of Planetary Landforms
https://link.springer.com/book/9783319265575

Increased Surface Temperatures of Habitable White Dwarf Worlds Relative to Main-sequence Exoplanets
https://iopscience.iop.org/article/10.3847/1538-4357/ad9827

SPHEREx space telescope will seek life’s ingredients
https://phys.org/news/2025-02-spherex-space-telescope-life-ingredients.html

GJ 2126 b: A highly eccentric Jovian exoplanet
https://www.aanda.org/articles/aa/full_html/2025/02/aa52563-24/aa52563-24.html

The EBLM project – XIV. TESS light curves for eclipsing binaries with very low mass companions
https://academic.oup.com/mnras/advance-article/doi/10.1093/mnras/staf268/8011556

Planets Around Solar Twins/Analogs (PASTA). I. High-precision Stellar Chemical Abundances for 17 Planet-hosting Stars and the Condensation Temperature Trend
https://iopscience.iop.org/article/10.3847/1538-4357/ad9924

Evidence for a Volcanic Atmosphere on the Sub-Earth L 98-59 b
https://iopscience.iop.org/article/10.3847/2041-8213/adaf22

The EXO-UV program: lastest advances of experimental studies to investigate the biological impact of UV radiation on exoplanets
https://arxiv.org/abs/2502.08752

February 13, 2025 updates

Hydrogen escaping from a pair of exoplanets smaller than Neptune
https://www.nature.com/articles/s41586-024-08490-x

Estimating the Mass Escaping Rates of Radius-valley-spanning Planets in the TOI-431 System via X-Ray and Ultraviolet Evaporation
https://iopscience.iop.org/article/10.3847/1538-4357/ada607

Comprehensive Parameter Determination of Exoplanets through Asteroseismic Host Star Constraints
https://iopscience.iop.org/article/10.3847/1538-4357/ada60b

Searching for Hot Water World Candidates with CHEOPS: Refining the radii and analysing the internal structures and atmospheric lifetimes of TOI-238 b and TOI-1685 b
https://arxiv.org/abs/2502.07887

In-depth characterization of the Kepler-10 three-planet system with HARPS-N RVs and Kepler TTVs
https://arxiv.org/abs/2502.07996

Secondary ionisation in hot atmospheres and interactions between planetary and stellar winds
https://arxiv.org/abs/2502.08316

Physically motivated analytic model of energy efficiency for EUV-driven atmospheric escape of close-in exoplanets
https://arxiv.org/abs/2502.08398

Discovering Numerous Interstellar Objects with A Dedicated Space Telescope
https://arxiv.org/abs/2502.08478

February 12, 2025 updates

Peering into the Black Box: Forward Modeling of the Uncertainty Budget of High-resolution Spectroscopy of Exoplanet Atmospheres
https://iopscience.iop.org/article/10.3847/1538-3881/ada27e

Cryoscope: A Cryogenic Infrared Survey Telescope
https://arxiv.org/abs/2502.06950

GEMS JWST: Transmission spectroscopy of TOI-5205b reveals significant stellar contamination and a metal-poor atmosphere
https://arxiv.org/abs/2502.06966

TOI-2015b: a sub-Neptune in strong gravitational interaction with an outer non-transiting planet
https://arxiv.org/abs/2502.07074

The SPIRou Legacy Survey: near-infrared and optical radial velocity analysis of Gl 480 and Gl 382 using SPIRou, HARPS and CARMENES spectrographs
https://arxiv.org/abs/2502.07086

Estimate the Mass Escaping Rates of Radius-valley-spanning Planets in TOI-431 System via XUV Evaporation
https://arxiv.org/abs/2502.07294

Exoplanet Transit Candidate Identification in TESS Full-Frame Images via a Transformer-Based Algorithm
https://arxiv.org/abs/2502.07542

Statistical Reevaluation of the USP Classification Boundary: Smaller Planets Within 1 Day, Larger Period Ratios Below 2 Days
https://arxiv.org/abs/2502.07773

Genetic evolution of a multi-generational population in the context of interstellar space travels — Part II: Phenotypic effects of gene expression
https://arxiv.org/abs/2502.07559

February 11, 2025 updates

Building a Space-Faring Civilization: Advancing the Renaissance of Science, Medicine, and Human Performance in Civilian Spaceflight
https://www.sciencedirect.com/book/9780443138508/building-a-space-faring-civilization

The Possibility of Advanced Extraterrestrial Aliens Based on the Universal Formula
https://philpapers.org/rec/MALTPO-45

The extraterrestrial hypothesis: an epistemological case for removing the taboo
https://link.springer.com/article/10.1007/s13194-025-00634-8

Stellar magnetic activity in Earth 2.0 candidates based on LAMOST DR10
https://www.aanda.org/articles/aa/full_html/2025/02/aa52042-24/aa52042-24.html

Configuration of single giant planet systems generating ‘oumuamua-like interstellar asteroids
https://academic.oup.com/mnras/advance-article/doi/10.1093/mnras/staf234/8006707

Ground-based Reconnaissance Observations of 21 Exoplanet Atmospheres with the Exoplanet Transmission Spectroscopy Imager
https://iopscience.iop.org/article/10.3847/1538-3881/ada557

The Dynamical History of HIP-41378 f—Oblique Exorings Masquerading as a Puffy Planet
https://iopscience.iop.org/article/10.3847/1538-4357/ada4b2

Kinetic and Photochemical Disequilibrium in the Potentially Carbon-rich Atmosphere of the Warm Jupiter WASP-69 b
https://iopscience.iop.org/article/10.3847/1538-4357/adaa7d

Exo-MerCat v2.0.0: Updates and open-source release of the Exoplanet Merged Catalog software
https://www.sciencedirect.com/science/article/abs/pii/S2213133725000095

Radial velocity homogeneous analysis of M dwarfs observed with HARPS I. Exoplanet detection and candidates
https://arxiv.org/abs/2502.06513

Radial velocity homogeneous analysis of M dwarfs observed with HARPS. II. Detection limits and planetary occurrence statistics
https://arxiv.org/abs/2502.06553

February 07, 2025 updates

The Local Galactic Transient Survey Applied to an Optical Search for Directed Intelligence
https://arxiv.org/abs/2501.18903

Observationally derived magnetic field strength and 3D components in the HD 142527 disk
https://www.nature.com/articles/s41550-024-02454-x

TOI-5108 b and TOI 5786 b: Two transiting sub-Saturns detected and characterized with TESS, MaHPS, and SOPHIE
https://www.aanda.org/articles/aa/full_html/2025/02/aa51676-24/aa51676-24.html

The Influence of General Relativity on the Spins of Celestial Bodies in Inclined Orbits
https://iopscience.iop.org/article/10.3847/1538-4357/ada5fc

The Effects of Kinematic MHD on the Atmospheric Circulation of Eccentric Hot Jupiters
https://arxiv.org/abs/2502.04169

Energy needed to propel a tiny spacecraft to Proxima Centauri,and, an unstated assumption in Einstein’s 1905 paper
https://arxiv.org/abs/2502.04331

Early Accretion of Large Amounts of Solids for Directly-Imaged Exoplanets
https://arxiv.org/abs/2310.00088