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.

October 13, 2023 updates

KMT-2021-BLG-1547Lb: Giant microlensing planet detected through a signal deformed due to source binarity
https://www.aanda.org/articles/aa/full_html/2023/10/aa47366-23/aa47366-23.html

New Work on Biosignatures
https://academic.oup.com/mind/advance-article/doi/10.1093/mind/fzad050/7310788

Atmospheric Retrieval of L Dwarfs: Benchmarking Results and Characterizing the Young Planetary Mass Companion HD 106906 b in the Near-infrared
https://iopscience.iop.org/article/10.3847/1538-3881/acfb87

Modelling Non-Condensing Compositional Convection for Applications to Super-Earth and Sub-Neptune Atmospheres
https://arxiv.org/abs/2310.08202

October 12, 2023 updates

Interstellar Sample Analysis: A Failed Project Orion Type Interstellar Probe Sent to Investigate Earth?
https://www.journalijisr.com/issue/interstellar-sample-analysis-failed-project-orion-type-interstellar-probe-sent-investigate

The Call for a New Definition of Biosignature
https://liebertpub.com/doi/10.1089/ast.2023.0010

A planetary collision afterglow and transit of the resultant debris cloud
https://www.nature.com/articles/s41586-023-06573-9

Traversable wormholes with static spherical symmetry and their stability in higher-curvature gravity
https://iopscience.iop.org/article/10.1088/1475-7516/2023/10/038

Smell of the sea on a not-so-faraway planet?
https://www.cell.com/the-innovation/pdf/S2666-6758(23)00151-0.pdf

Life detection in a universe of false positives: Can the Fatal Flaws of Exoplanet Biosignatures be Overcome Absent a Theory of Life?
https://onlinelibrary.wiley.com/doi/10.1002/bies.202300050

Tracing the Snowball bifurcation of aquaplanets through time reveals a fundamental shift in critical-state dynamics
https://arxiv.org/abs/2310.06922

The Slicer Combined with Array of Lenslets for Exoplanet Spectroscopy (SCALES): driving science cases and expected outcomes
https://arxiv.org/abs/2310.07134

Exoplanet Occurrence Rates from Microlensing Surveys
https://arxiv.org/abs/2310.07502

Stability of coorbital planets around binaries
https://arxiv.org/abs/2310.07575

The sulphur species in hot rocky exoplanet atmospheres
https://arxiv.org/abs/2310.07701

Clouds and Clarity: Revisiting Atmospheric Feature Trends in Neptune-size Exoplanets
https://arxiv.org/abs/2310.07714

October 11, 2023 updates

Large Interferometer For Exoplanets (LIFE) – XI. Phase-space synthesis decomposition for planet detection and characterization
https://www.aanda.org/articles/aa/full_html/2023/10/aa45927-23/aa45927-23.html

Metallicity and Spectral Evolution of WASP 39b: The Limited Role of Hydrodynamic Escape
https://iopscience.iop.org/article/10.3847/2041-8213/acfaec

Searching for candidates of orbital decays among transit exoplanets
https://www.sciencedirect.com/science/article/abs/pii/S1384107623001318

Active Metasurfaces for Non-Rigid Light Sail Interstellar Optical Communication
https://onlinelibrary.wiley.com/doi/10.1002/adts.202300359

Floating binary planets from ejections during close stellar encounters
https://arxiv.org/abs/2310.06016

Planetary system architectures with low-mass inner planets: Direct imaging exploration of mature systems beyond 1 au
https://arxiv.org/abs/2310.06035

Can one hear supercontinents in the tides of ocean planets?
https://arxiv.org/abs/2310.06635

Using a quench level approximation to estimate the effect of metallicity on N-bearing species abundances in H2-dominated atmospheres
https://arxiv.org/abs/2310.06796

October 10, 2023 updates

Could AI find alien life faster than humans, and would it tell us?
https://www.space.com/could-ai-find-alien-life-faster-than-humans

Characterizing the Near-infrared Spectra of Flares from TRAPPIST-1 During JWST Transit Spectroscopy Observations
https://arxiv.org/abs/2310.03792

A review of planetary systems around HD 99492, HD 147379, and HD 190007 with HARPS-N
https://www.aanda.org/articles/aa/full_html/2023/10/aa46887-23/aa46887-23.html

Large Interferometer For Exoplanets (LIFE) – X. Detectability of currently known exoplanets and synergies with future IR/O/UV reflected-starlight imaging missions
https://www.aanda.org/articles/aa/full_html/2023/10/aa47027-23/aa47027-23.html

TOI-5126: A hot super-Neptune and warm Neptune pair discovered by TESS and CHEOPS
https://academic.oup.com/mnras/advance-article/doi/10.1093/mnras/stad3036/7303305

The Feasibility of Detecting Biosignatures in the TRAPPIST-1 Planetary System with JWST
https://iopscience.iop.org/article/10.3847/PSJ/acf488

Direct Measurements of Stellar Masses with the Habitable World Observatory
https://iopscience.iop.org/article/10.3847/2515-5172/ad0038

Tidal migration of exoplanets around M-dwarfs: frequency-dependent tidal dissipation
https://arxiv.org/abs/2310.04588

A Complex Systems Approach to Exoplanet Atmospheric Chemistry: New Prospects for Ruling Out the Possibility of Alien Life-As-We-Know-It
https://arxiv.org/abs/2310.05359

Investigation on the Orbital Period Variations of NN Ser: Implications for the Hypothetical Planets, the Applegate Mechanism and the Orbital Stability
https://arxiv.org/abs/2310.05465

Planetary companions orbiting the M dwarfs GJ 724 and GJ 3988. A CARMENES and IRD collaboration
https://arxiv.org/abs/2310.05599

WD0141-675: A case study on how to follow-up astrometric planet candidates around white dwarfs
https://arxiv.org/abs/2310.05778

October 09, 2023 Updates

GJ 806 (TOI-4481): A bright nearby multi-planetary system with a transiting hot low-density super-Earth
https://www.aanda.org/articles/aa/full_html/2023/10/aa44261-22/aa44261-22.html

3D Global Simulations of Accretion onto Gap-opening Planets: Implications for Circumplanetary Disc Structures and Accretion Rates
https://academic.oup.com/mnras/advance-article/doi/10.1093/mnras/stad3049/7296156?searchresult=1

Not So Fast Kepler-1513: A Perturbing Planetary Interloper in the Exomoon Corridor
https://arxiv.org/abs/2310.03802