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.

June 06, 2025 updates

Cosmochemistry and Astrobiology of Centaurs as Remnants of Icy Planetesimals
https://www.researchgate.net/publication/392364953_Cosmochemistry_and_Astrobiology_of_Centaurs_as_Remnants_of_Icy_Planetesimals

Interstellar Mission Design of a Fusion-Powered Spacecraft to Proxima b
https://vtechworks.lib.vt.edu/items/90b3f3e1-bb96-4006-8701-7f2e593fb009

RedDots: Panetary masses in the GJ 1061 system from planet-planet interaction
https://www.aanda.org/articles/aa/full_html/2025/06/aa52490-24/aa52490-24.html

Radial variations in the nitrogen, carbon, and hydrogen fractionation in the PDS 70 planet-hosting disk
https://www.aanda.org/articles/aa/full_html/2025/06/aa54172-25/aa54172-25.html

sunset: A database of synthetic atmospheric-escape transmission spectra for nearly every transiting planet
https://www.aanda.org/articles/aa/full_html/2025/06/aa52431-24/aa52431-24.html

Searching for Additional Planets in TESS Multiplanet Systems: Testing Empirical Models Based on Kepler Data
https://iopscience.iop.org/article/10.3847/1538-3881/adcd71

Minimizing Star-spot Contamination of Exoplanet Transit Spectroscopy Using Alternate Normalization
https://iopscience.iop.org/article/10.3847/1538-3881/add531

From Pretransit to Posteclipse: Investigating the Impact of 3D Temperature, Chemistry, and Dynamics on High-resolution Emission Spectra of the Ultrahot Jupiter WASP-76b
https://iopscience.iop.org/article/10.3847/1538-4357/add341

Cosmic fertilization? Implantation of astrobiologically relevant cosmic rays in molecular clouds
https://www.sciencedirect.com/science/article/abs/pii/S2214552425000720

An overlooked Schelling point candidate for optical SETI: ‘MiM’
https://www.sciencedirect.com/science/article/abs/pii/S0094576525003455

Planet Earth in reflected and polarized light: II. Refining contrast estimates for rocky exoplanets with ELT and HWO
https://arxiv.org/abs/2506.04348

The Age and High Energy Environment of the Very Young Transiting Exoplanet TOI 1227b
https://arxiv.org/abs/2506.04440

Radio prospects of extrasolar aurorae polaris as a probe of planetary magnetism
https://arxiv.org/abs/2506.04604

Searching for helium escape and a low density atmosphere around the 120 Myr old sub-Neptune HIP94235b using CRIRES+
https://arxiv.org/abs/2506.04605

Three Hot Jupiters transiting K-dwarfs with a significant heavy element mass
https://arxiv.org/abs/2506.04923

June 05, 2025 updates

Capture of Interstellar Objects
https://ui.adsabs.harvard.edu/abs/2025DDA….5620427M/abstract

A Probabilistic Framework for Estimating the Prevalence of Intelligent Extraterrestrial Life in the Observable Universe
https://www.researchgate.net/publication/392286039_A_Probabilistic_Framework_for_Estimating_the_Prevalence_of_Intelligent_Extraterrestrial_Life_in_the_Observable_Universe

Formation of Ammonium Nitrate Particles in CO2-rich Atmospheres
https://iopscience.iop.org/article/10.3847/PSJ/add730

A Search for Exoplanet Candidates in TESS 2 minute Light Curves Using Joint Bayesian Detection
https://iopscience.iop.org/article/10.3847/1538-3881/add15a

The NASA Exoplanet Archive and Exoplanet Follow-up Observing Program: Data, Tools, and Usage
https://arxiv.org/abs/2506.03299

Late gas released in the young Kuiper belt could have significantly contributed to the carbon enrichment of the atmospheres of Neptune and Uranus
https://arxiv.org/abs/2506.03412

A Resonant Beginning for the Solar System Terrestrial Planets
https://arxiv.org/abs/2506.04164

June 04, 2025 updates

Could deciphering dolphin language help us communicate with ET?
https://www.space.com/space-exploration/search-for-life/could-deciphering-dolphin-language-help-us-communicate-with-et

Universe “Theory” by Bruno Bernardes
https://zenodo.org/records/15589107

A transiting giant planet in orbit around a 0.2-solar-mass host star
https://www.nature.com/articles/s41550-025-02552-4

Retrieving day- and nightside atmospheric properties of the ultra-hot Jupiter TOI-2109b – Detection of Fe and CO emission lines and evidence for inefficient heat transport
https://www.aanda.org/articles/aa/full_html/2025/06/aa54572-25/aa54572-25.html

High-contrast spectroscopy with the new VLT/ERIS instrument – Molecular maps and radial velocity of the gas giant AF Lep b
https://www.aanda.org/articles/aa/full_html/2025/06/aa53297-24/aa53297-24.html

Exoplanets in the Antarctic Sky. V. The Second Data Release of AST3-II/CHESPA and Newly Found Variables within the Southern Continuous Viewing Zone of TESS
https://iopscience.iop.org/article/10.3847/1538-4365/adce81

A Pan-STARRS Search for Distant Planets: Part 1
https://arxiv.org/abs/2506.02144

Interior redox state effects on the stability of secondary atmospheres and observational manifestations: LP 791-18 d as a case study for outgassing rocky exoplanets
https://arxiv.org/abs/2506.02188

WASP-121b’s transmission spectrum observed with JWST/NIRSpec G395H reveals thermal dissociation and SiO in the atmosphere
https://arxiv.org/abs/2506.02199

Stability of a cluster-disrupted mean-motion resonance (chain) in HR 8799 and PDS 70
https://arxiv.org/abs/2506.02253

An Exploratory Framework for Future SETI Applications: Detecting Generative Reactivity via Language Models
https://arxiv.org/abs/2506.02730

Clues for Solar System Formation from Meteorites and their Parent Bodies
https://arxiv.org/abs/2506.02721

The Growing Impact of Unintended Starlink Broadband Emission on Radio Astronomy in the SKA-Low Frequency Range
https://arxiv.org/abs/2506.02831

Stellar Magnetic Storm Induced Magnetospheric Polarity Reversals: Distinguishing between Unmagnetised and Magnetised Exoplanets
https://arxiv.org/abs/2506.02886

June 03, 2025 updates

Hot Rocks Survey – II. The thermal emission of TOI-1468 b reveals a bare hot rock
https://www.aanda.org/articles/aa/full_html/2025/06/aa53449-24/aa53449-24.html

Growing Pains: Binaries Suppress Planetary Systems at a Young Age
https://iopscience.iop.org/article/10.3847/2515-5172/adddbe

A temperate 10-Earth-mass exoplanet around the Sun-like star Kepler-725
https://www.nature.com/articles/s41550-025-02565-z

AGNI: A radiative-convective model for lava planet atmospheres
https://arxiv.org/abs/2506.00091

Applying Vision Transformers on Spectral Analysis of Astronomical Objects
https://arxiv.org/abs/2506.00294

Star-Planet Interactions: A Computational View
https://arxiv.org/abs/2506.00470

On Linking Planet Formation Models, Protoplanetary Disk Properties, and Mature Gas Giant Exoplanet Atmospheres
https://arxiv.org/abs/2506.00669

NLTE atmospheric modelling of the ultra-hot Jupiter WASP-178b and comparison with UV and optical observations
https://arxiv.org/abs/2506.01132

SiO and a super-stellar C/O ratio in the atmosphere of the giant exoplanet WASP-121b
https://arxiv.org/abs/2506.01771

A Precise Metallicity and Carbon-to-Oxygen Ratio for a Warm Giant Exoplanet from its Panchromatic JWST Emission Spectrum
https://arxiv.org/abs/2506.01800

June 02, 2025 updates

Avoiding the Great Filter: Illuminating Pathways to Humanity’s Future in the Cosmos
https://www.barnesandnoble.com/w/avoiding-the-great-filter-jonathan-h-jiang/1147475246

Measurement of Photochemical Haze Refractive Indices and Hygroscopicity: Influence of CO2 in CH4/H2S/N2 Mixtures
https://liebertpub.com/doi/10.1089/ast.2024.0142

SiO and a super-stellar C/O ratio in the atmosphere of the giant exoplanet WASP-121 b
https://www.nature.com/articles/s41550-025-02513-x

ExoPhoto: A Database of Temperature-Dependent Photodissociation Cross Sections
https://academic.oup.com/rasti/advance-article/doi/10.1093/rasti/rzaf020/8154506

Statistical Properties of Predicted Blended Eclipsing Binary False Positives in PLATO LOPS
https://academic.oup.com/mnras/advance-article/doi/10.1093/mnras/staf877/8153831

WASP-121 b’s Transmission Spectrum Observed with JWST/NIRSpec G395H Reveals Thermal Dissociation and SiO in the Atmosphere
https://iopscience.iop.org/article/10.3847/1538-3881/ad9c6e

Observations and Studies on the Transiting Systems HAT-P-36, XO-2 and WASP-76
https://iopscience.iop.org/article/10.3847/1538-3881/add1de

Searching for GEMS: Two Super-Jupiters Around M Dwarfs that May have Formed via Gravitational Instability
https://iopscience.iop.org/article/10.3847/1538-3881/add2ef

Investigating Spectral Stability in the Vicinity of the Metastable Helium Triplet of WASP-107
https://iopscience.iop.org/article/10.3847/2515-5172/adddaa

JWST NIRISS Transmission Spectroscopy of the Super-Earth GJ 357b, a Favourable Target for Atmospheric Retention
https://arxiv.org/abs/2505.24462