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.

January 20, 2023 updates

Chasing nomadic worlds: Opening up the space between the stars
https://www.centauri-dreams.org/2022/12/28/chasing-nomadic-worlds-opening-up-the-space-between-the-stars/

Finding order in planetary architectures
https://www.nature.com/articles/s41550-023-01895-0

The Dynamics of Interstellar Laser Sails
https://arc.aiaa.org/doi/10.2514/6.2023-0552

Fast Transit Interstellar Probe Mission with Extreme Solar Sailing
https://arc.aiaa.org/doi/10.2514/6.2023-1220

A Distributed Architecture to Accomplish the Solar Gravity Lens Mission
https://arc.aiaa.org/doi/10.2514/6.2023-1967

Warp Factory: A Numerical Toolkit for the Analysis and Optimization of Warp Drive Geometries
https://arc.aiaa.org/doi/10.2514/6.2023-0553

The Mantis network – A standard grid of templates and masks for cross-correlation analyses of ultra-hot Jupiter transmission spectra
https://www.aanda.org/articles/aa/full_html/2023/01/aa42969-21/aa42969-21.html

Removing biases on the density of sub-Neptunes characterised via transit timing variations – Update on the mass-radius relationship of 34 Kepler planets
https://www.aanda.org/articles/aa/full_html/2023/01/aa44132-22/aa44132-22.html

Binary microlensing with plasma environment – Star and planet
https://academic.oup.com/mnras/advance-article-abstract/doi/10.1093/mnras/stad200/6993080

Detection of Atmospheric Escape from Four Young Mini-Neptunes
https://iopscience.iop.org/article/10.3847/1538-3881/aca75b

A Green Bank Telescope Search for Narrowband Technosignatures between 1.1 and 1.9 GHz During 12 Kepler Planetary Transits
https://iopscience.iop.org/article/10.3847/1538-3881/aca907

TESS-Keck Survey. XIV. Two Giant Exoplanets from the Distant Giants Survey
https://iopscience.iop.org/article/10.3847/1538-3881/aca6ef

The Three Regimes of Atmospheric Evaporation for Super-Earths and Sub-Neptunes
https://iopscience.iop.org/article/10.3847/1538-4357/ac9d34

Water Worlds in the Solar System: Exploring Prospects of Extraterrestrial Habitability & Life
https://www.sciencedirect.com/book/9780323957175/water-worlds-in-the-solar-system

Planet Search with the Keck/NIRC2 Vortex Coronagraph in Ms-band for Vega
https://arxiv.org/abs/2301.07714

The geometric albedo of the hot Jupiter HD 187933b measured with CHEOPS
https://arxiv.org/abs/2301.07731

Biosignature Line Ratios of [P II] in Exoplanetary and Nebular Environments
https://arxiv.org/abs/2301.07736

Characterization of a set of small planets with TESS and CHEOPS and an analysis of photometric performance
https://arxiv.org/abs/2301.08162

A broadband thermal emission spectrum of the ultra-hot Jupiter WASP-18b
https://arxiv.org/abs/2301.08192

Inferring the rate of technosignatures from sixty years of nondetection
https://arxiv.org/abs/2301.07165

January 19, 2023 Updates

The Giant Accreting Protoplanet Survey (GAPlanetS): Optimization Techniques for Robust Detections of Protoplanets
https://iopscience.iop.org/article/10.3847/1538-3881/aca60d

Revisiting mass-radius relationships for exoplanet populations: a machine learning insight
https://arxiv.org/abs/2301.07143

The JWST Early Release Science Program for Direct Observations of Exoplanetary Systems: Best Practices for Data Collection in Cycle 2 and Beyond
https://arxiv.org/abs/2301.07199

On computing viscoelastic Love numbers for general planetary models: the \texttt{ALMA3} code
https://arxiv.org/abs/2301.07351

Hint of an exocomet transit in the CHEOPS lightcurve of HD 172555
https://arxiv.org/abs/2301.07418

Imaging faint sources with the extended solar gravitational lens
https://arxiv.org/abs/2301.07495

January 18, 2023 updates

DREAM – I. Orbital architecture orrery
https://www.aanda.org/articles/aa/full_html/2023/01/aa45004-22/aa45004-22.html

Low-rank plus sparse trajectory decomposition for direct exoplanet imaging
https://arxiv.org/abs/2301.07018

Polarized Signatures of a Habitable World: Comparing Models of an Exoplanet Earth with Visible and Near-infrared Earthshine Spectra
https://arxiv.org/abs/2301.05734

A First Look at the JWST MIRI/LRS Phase Curve of WASP-43b
https://arxiv.org/abs/2301.06350

Neural posterior estimation for exoplanetary atmospheric retrieval
https://arxiv.org/abs/2301.06575

KMT-2022-BLG-0440Lb: A New q<10−4 Microlensing Planet with the Central-Resonant Caustic Degeneracy Broken
https://arxiv.org/abs/2301.06779

GJ 806 (TOI-4481): A bright nearby multi-planetary system with a transiting hot, low-density super-Earth h
ttps://arxiv.org/abs/2301.06873

The Breakthrough Listen Search for Intelligent Life: A Laser Search Pipeline for the Automated Planet Finder
https://arxiv.org/abs/2301.06971

January 16, 2023 Updates

An analysis of interstellar exploration focused on propulsion technologies
https://jhss.scholasticahq.com/article/66203

The W&T Realpolitik Scenario and Contact With Extraterrestrial Intelligence: A Reply to Wright et al.
https://www.sciencedirect.com/science/article/abs/pii/S0265964622000625

Multiverse Predictions for Habitability: Origin of Life Scenarios
https://www.mdpi.com/2218-1997/9/1/42

Supernovae may create interstellar meteorites
https://www.sciencedirect.com/science/article/abs/pii/S0262407923000556

The smallest planetary drivers of white dwarf pollution
https://academic.oup.com/mnras/advance-article-abstract/doi/10.1093/mnras/stad130/6986278?redirectedFrom=fulltext

Lifting the Veil: Alien planets are shrouded in hazes that hide clues to their makeup. Lab experiments could help clear the view
https://www.science.org/content/article/lifting-veil-astronomers-conjure-hazes-obscure-alien-worlds

A Mixed Stirring Mechanism for Debris Discs with Giant and Dwarf Planetary Perturbations
https://arxiv.org/abs/2301.05265

Leaky Dust Traps: How Fragmentation impacts Dust Filtering by Planets
https://arxiv.org/abs/2301.05505