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 23, 2023 Updates

The sulfur species in hot rocky exoplanet atmospheres
https://onlinelibrary.wiley.com/doi/10.1002/asna.20230075

Using cGANs for Anomaly Detection: Identifying Astronomical Anomalies in JWST Imaging
https://iopscience.iop.org/article/10.3847/2515-5172/acff65

Probing Reflection from Aerosols with the Near-infrared Dayside Spectrum of WASP-80b
https://iopscience.iop.org/article/10.3847/2041-8213/acfee9

Detecting Technosignatures from Earth-scale Civilizations
https://iopscience.iop.org/article/10.3847/1538-4357/acf56c

GJ 357 d: Potentially Habitable World or Agent of Chaos?
https://iopscience.iop.org/article/10.3847/1538-3881/acff5a

A Search for Technosignatures Around 11,680 Stars with the Green Bank Telescope at 1.15–1.73 GHz
https://iopscience.iop.org/article/10.3847/1538-3881/acfda4

Constraining the formation history of the TOI-1338/BEBOP-1 circumbinary planetary system
https://academic.oup.com/mnras/advance-article/doi/10.1093/mnras/stad3216/7326799?searchresult=1

Making hot Jupiters in stellar clusters II: efficient formation in binary systems
https://academic.oup.com/mnras/advance-article/doi/10.1093/mnras/stad3207/7326776?searchresult=1

Self-Consistent Modeling of Metastable Helium Exoplanet Transits
https://arxiv.org/abs/2310.13052

OGLE-2014-BLG-0221Lb: A Jupiter Mass Ratio Companion Orbiting either a Late-Type Star or a Stellar Remnant
https://arxiv.org/abs/2310.13066

Survival in the Neptune desert: LTT 9779 b kept its atmosphere thanks to an unusually X-ray faint host star
https://arxiv.org/abs/2310.13171

Imaging detection of the inner dust belt and the four exoplanets in the HR8799 system with JWST’s MIRI coronagraph
https://arxiv.org/abs/2310.13414

Masses, Revised Radii, and a Third Planet Candidate in the "Inverted" Planetary System Around TOI-1266
https://arxiv.org/abs/2310.13496

A hot mini-Neptune and a temperate, highly eccentric sub-Saturn around the bright K-dwarf TOI-2134
https://arxiv.org/abs/2310.13623

October 20, 2023 updates

CROCODILE – Incorporating medium-resolution spectroscopy of close-in directly imaged exoplanets into atmospheric retrievals via cross-correlation
https://www.aanda.org/articles/aa/full_html/2023/10/aa45752-22/aa45752-22.html

Three young planets around the K-dwarf K2-198: High-energy environment, evaporation history and expected future
https://academic.oup.com/mnras/advance-article/doi/10.1093/mnras/stad3197/7324840

A Search for Technosignatures Around 11,680 Stars with the Green Bank Telescope at 1.15–1.73 GHz
https://iopscience.iop.org/article/10.3847/1538-3881/acfda4

Investigation on transit observations of the WASP-10 and WASP-11 systems
https://www.sciencedirect.com/science/article/abs/pii/S1384107623001392

Simulating medium-spectral-resolution exoplanet characterization with SCALES angular/reference differential imaging
https://arxiv.org/abs/2310.12193

Refutation of K2-256b and Rejection of 130 Unconfirmed Transiting Planet Candidates with Gaia DR3 NSS
https://arxiv.org/abs/2310.12380

Confirmation of a Sub-Saturn-size transiting exoplanet orbiting a G dwarf: TOI-1194 b and a very low mass companion star: TOI-1251 B from TESS
https://arxiv.org/abs/2310.12458

Constraining the formation history of the HAT-P-11 system by atmospheric abundances
https://arxiv.org/abs/2310.12797

Can comets deliver prebiotic molecules to rocky exoplanets?
https://arxiv.org/abs/2310.12906

October 19, 2023 updates

Quantification of Electron/Positron Pairs for Matter/Antimatter Propulsion: Experimental Results & Next Steps
https://www.researchgate.net/publication/374581514_Quantification_of_ElectronPositron_Pairs_for_MatterAntimatter_Propulsion_Experimental_Results_Next_Steps

Study of viable charged wormhole solutions in f(R,G) theory
https://www.sciencedirect.com/science/article/abs/pii/S1384107623001380

No Evidence for More Earth-sized Planets in the Habitable Zone of Kepler’s M versus FGK Stars
https://arxiv.org/abs/2310.11613

TOI-2015b: A Warm Neptune with Transit Timing Variations Orbiting an Active mid M Dwarf
https://arxiv.org/abs/2310.11775

Constraining the formation history of the TOI-1338/BEBOP-1 circumbinary planetary system
https://arxiv.org/abs/2310.11898

The JWST Early Release Science Program for Direct Observations of Exoplanetary Systems IV: NIRISS Aperture Masking Interferometry Performance and Lessons Learned
https://arxiv.org/abs/2310.11499

October 18, 2023 updates

Black Holes as Cosmic Signposts: The Great Filter Hypothesis
https://www.researchgate.net/publication/374666014_Black_Holes_as_Cosmic_Signposts_The_Great_Filter_Hypothesis

Jupiter-like planets might be common in a low-density environment
https://www.nature.com/articles/s41467-023-41665-0

Long Term Human Presence in Space Requires Artificial Gravity and Radiation Shielding
https://arc.aiaa.org/doi/10.2514/6.2023-4654

Quantification of Electron/Positron Pairs for Matter/Anti-Matter Propulsion — Recent Experimental Results
https://arc.aiaa.org/doi/10.2514/6.2023-4731

The space weather around the exoplanet GJ 436b – II. Stellar wind–exoplanet interactions
https://www.aanda.org/articles/aa/full_html/2023/10/aa47237-23/aa47237-23.html

Percolation of ‘civilisation’ in a homogeneous isotropic universe
https://iopscience.iop.org/article/10.1088/1361-6404/acfbc5

TOI-199 b: A Well-characterized 100 day Transiting Warm Giant Planet with TTVs Seen from Antarctica
https://iopscience.iop.org/article/10.3847/1538-3881/acfc1d

ELemental abundances of Planets and brown dwarfs Imaged around Stars (ELPIS). I. Potential Metal Enrichment of the Exoplanet AF Lep b and a Novel Retrieval Approach for Cloudy Self-luminous Atmospheres https://iopscience.iop.org/article/10.3847/1538-3881/acf768

Double Trouble: Two Transits of the Super-Earth GJ 1132 b Observed with JWST NIRSpec G395H
https://arxiv.org/abs/2310.10711

Experimental Investigation of the Photochemical Production of Hydrocarbons in Warm Gas Giant Exoplanet Atmospheres
https://arxiv.org/abs/2310.11164

October 17, 2023 updates

Detection of atmospheric species and dynamics in the bloated hot Jupiter WASP-172 b with ESPRESSO
https://www.aanda.org/articles/aa/full_html/2023/10/aa47160-23/aa47160-23.html

Developing a Drift Rate Distribution for Technosignature Searches of Exoplanets
https://iopscience.iop.org/article/10.3847/1538-3881/acf83d

Beyond Two-dimensional Mass–Radius Relationships: A Nonparametric and Probabilistic Framework for Characterizing Planetary Samples in Higher Dimensions
https://iopscience.iop.org/article/10.3847/1538-4357/acf3e7

Machine-learning Inferences of the Interior Structure of Rocky Exoplanets from Bulk Observational Constraints
https://iopscience.iop.org/article/10.3847/1538-4365/acf31a

The PEPSI Exoplanet Transit Survey (PETS) IV: Assessing the atmospheric chemistry of KELT-20b
https://arxiv.org/abs/2310.09352

Interstellar Meteors from Tidal Disruption of Rocky Planets on Eccentric Orbits Around M Dwarfs
https://arxiv.org/abs/2310.09399

COSMIC: An Ethernet-based Commensal, Multimode Digital Backend on the Karl G. Jansky Very Large Array for the Search for Extraterrestrial Intelligence
https://arxiv.org/abs/2310.09414

An Information Theory Approach to Identifying Signs of Life on Transiting Planets
https://arxiv.org/abs/2310.09472

TOI-1801 b: A temperate mini-Neptune around a young M0.5 dwarf
https://arxiv.org/abs/2310.10244

Reproducing Bayesian Posterior Distributions for Exoplanet Atmospheric Parameter Retrievals with a Machine Learning Surrogate Model
https://arxiv.org/abs/2310.10521

An updated Orbital Solution for WASP-12 b: Updated Ephemeris and Evidence for Decay leveraging Citizen Science Data
https://arxiv.org/abs/2306.17473