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.

December 14, 2023 updates

The Breakthrough Listen Search for Intelligent Life: Detection and Characterization of Anomalous Transits in Kepler Lightcurves
https://iopscience.iop.org/article/10.3847/1538-3881/acfa6c

The California Legacy Survey. IV. Lonely, Poor, and Eccentric: A Comparison between Solitary and Neighborly Gas Giants
https://iopscience.iop.org/article/10.3847/1538-4365/acffc0

Outcomes of Sub-Neptune Collisions
https://arxiv.org/abs/2312.07648

Inferring Atmospheric Properties of Exoplanets with Flow Matching and Neural Importance Sampling
https://arxiv.org/abs/2312.08295

Optimising spectroscopic observations of transiting exoplanets
https://arxiv.org/abs/2312.08320

DEATHSTAR: A system for confirming planets and identifying false positive signals in TESS data using ground-based time domain surveys
https://arxiv.org/abs/2312.08373

December 13, 2023 updates

Interactive bioacoustic playback as a tool for detecting and exploring nonhuman intelligence: “conversing” with an Alaskan humpback whale
https://peerj.com/articles/16349/

Testing the Limits of Biosignature Detection in Ca-sulphate Mixtures Through a Simulated Martian Environment
https://iopscience.iop.org/article/10.3847/2515-5172/ad103f

Nonthermal Atmospheric Escape on the Kepler-11 “Super-Earths” Driven by Stellar Wind Sputtering
https://iopscience.iop.org/article/10.3847/1538-4357/ad0a84

One-dimensional Convolutional Neural Networks for Detecting Transiting Exoplanets
https://arxiv.org/abs/2312.07161

Precise photoionisation treatment and hydrodynamic effects in atmospheric modelling of warm and hot Neptunes
https://arxiv.org/abs/2312.07236

A study of two periodogram algorithms for improving the detection of small transiting planets
https://arxiv.org/abs/2308.04282

December 12, 2023 updates

Decorated Vesicles as Prebiont Systems (a Hypothesis)
https://link.springer.com/article/10.1007/s11084-023-09643-0

The On-orbit Performance of the Colorado Ultraviolet Transit Experiment Mission
https://iopscience.iop.org/article/10.3847/1538-3881/aca8a3

Planetary system architectures with low-mass inner planets – Direct imaging exploration of mature systems beyond 1 au
https://www.aanda.org/articles/aa/full_html/2023/12/aa46863-23/aa46863-23.html

The CARMENES search for exoplanets around M dwarfs – Telluric absorption corrected high S/N optical and near-infrared template spectra of 382 M dwarf stars
https://www.aanda.org/articles/aa/full_html/2023/12/aa46524-23/aa46524-23.html

Can Isotopologues Be Used as Biosignature Gases in Exoplanet Atmospheres?
https://www.mdpi.com/2075-1729/13/12/2325

HIP 65426 is a High-Frequency Delta Scuti Pulsator in Plausible Spin-Orbit Alignment with its Directly Imaged Exoplanet
https://arxiv.org/abs/2312.05310

Dynamics and Clouds in Planetary Atmospheres from Telescopic Observations
https://arxiv.org/abs/2312.05672

Variations in the Radius Distribution of Single and Compact Multiple Transiting Planets
https://arxiv.org/abs/2312.05809

ESO/HARPS Radial Velocities Catalog
https://arxiv.org/abs/2312.06586

December 11, 2023 updates

Interiors of giant planets : from Juno to Plato
https://theses.hal.science/tel-04322638v1

HD 110067 is a wide hierarchical triple system
https://iopscience.iop.org/article/10.3847/2515-5172/ad12d0

The TESS-Keck Survey XVII: Precise Mass Measurements in a Young, High Multiplicity Transiting Planet System using Radial Velocities and Transit Timing Variations
https://arxiv.org/abs/2312.04635

The origin and evolution of wide Jupiter Mass Binary Objects in young stellar clusters
https://arxiv.org/abs/2312.04645

Distinguishing exoplanet companions from field stars in direct imaging using Gaia astrometry
https://arxiv.org/abs/2312.04873

Near-Infrared Transmission Spectroscopy of HAT-P-18 b with NIRISS: Disentangling Planetary and Stellar Features in the Era of JWST
https://academic.oup.com/mnras/advance-article/doi/10.1093/mnras/stad3813/7468143?searchresult=1

TOI-4641b: An aligned warm Jupiter orbiting a bright (V=7.5) rapidly rotating F-star
https://academic.oup.com/mnras/advance-article/doi/10.1093/mnras/stad3785/7464053?searchresult=1

Separated Twins or Just Siblings? A Multiplanet System around an M Dwarf Including a Cool Sub-Neptune
https://iopscience.iop.org/article/10.3847/2041-8213/ad037d

Meeting extraterrestrials: Scenarios of first contact from the perspective of exosociology
https://www.sciencedirect.com/science/article/pii/S009457652300629X

December 8, 2023 updates

Guidebook for Systems Applications in Astrobiology
https://www.taylorfrancis.com/books/edit/10.1201/9781003294276/guidebook-systems-applications-astrobiology-vera-kolb

Large exomoons unlikely around Kepler-1625 b and Kepler-1708 b
https://www.nature.com/articles/s41550-023-02148-w

The planetary system Kepler-27 revisited
https://link.springer.com/article/10.1140/epjs/s11734-023-01039-5

Chalcogen isotopes reveal limited volatile contribution from late veneer to Earth
https://www.science.org/doi/10.1126/sciadv.adh0670

Saltire – A model to measure dynamical masses for high-contrast binaries and exoplanets with high-resolution spectroscopy
https://academic.oup.com/mnras/advance-article/doi/10.1093/mnras/stad3765/7462321

Revisiting epsilon Eridani with NEID: Identifying New Activity-sensitive Lines in a Young K Dwarf Star
https://iopscience.iop.org/article/10.3847/1538-3881/ad0b0b

Separated Twins or Just Siblings? A Multiplanet System around an M Dwarf Including a Cool Sub-Neptune
https://iopscience.iop.org/article/10.3847/2041-8213/ad037d

TOI-1670 c, a 40 day Orbital Period Warm Jupiter in a Compact System, Is Well Aligned
https://iopscience.iop.org/article/10.3847/2041-8213/ad0fea

Broadband, High-Reflectivity Dielectric Mirrors at Wafer Scale: Combining Photonic Crystal and Metasurface Architectures for Advanced Lightsails
https://arxiv.org/abs/2312.04471

On the required mass for exoplanetary radio emission
https://arxiv.org/abs/2312.03888

TOI-4641b: An Aligned Warm Jupiter Orbiting a Bright (V=7.5) Rapidly Rotating F-star
https://arxiv.org/abs/2312.03971