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.

September 12, 2023 updates

Webb Discovers Methane, Carbon Dioxide in Atmosphere of K2-18 b
https://www.nasa.gov/goddard/2023/webb-discovers-methane-carbon-dioxide-in-atmosphere-of-k2-18b

Carbon-bearing Molecules in a Possible Hycean Atmosphere
https://arxiv.org/abs/2309.05566

Stellar obliquity and planetary albedo in HAT-P-32 – Derived from the TESS light curve
https://www.aanda.org/articles/aa/full_html/2023/09/aa47704-23/aa47704-23.html

Induction heating of planetary interiors in white dwarf systems
https://www.aanda.org/articles/aa/full_html/2023/09/aa45225-22/aa45225-22.html

A Nondetection of Iron in the First High-resolution Emission Study of the Lava Planet 55 Cnc e
https://iopscience.iop.org/article/10.3847/1538-3881/acf28e

The Influence of Hydrogen Sulfide on the Optical Properties of Planetary Organic Hazes: Implications for Exoplanet Climate Modeling
https://iopscience.iop.org/article/10.3847/2041-8213/acf1a2

Swarming Proxima Centauri: Optical Communications Over Interstellar Distances
https://www.researchgate.net/publication/373833951_Swarming_Proxima_Centauri_Optical_Communications_Over_Interstellar_Distances

Bioverse: The Habitable Zone Inner Edge Discontinuity as an Imprint of Runaway Greenhouse Climates on Exoplanet Demographics
https://arxiv.org/abs/2309.04518

September 11, 2023 Updates

Do all gaps in protoplanetary discs host planets?
https://www.aanda.org/articles/aa/full_html/2023/09/aa47264-23/aa47264-23.html

Radial distribution of giant exoplanets at Solar System scales
https://www.aanda.org/articles/aa/full_html/2023/09/aa46165-23/aa46165-23.html

Claims of interstellar meteor fragments in the ocean spark controversy
https://www.sciencedirect.com/science/article/abs/pii/S0262407923016688

Gaia22dkvLb: A Microlensing Planet Potentially Accessible to Radial-Velocity Characterization
https://arxiv.org/abs/2309.03944

Methane Throughout the Atmosphere of the Warm Exoplanet WASP-80b
https://arxiv.org/abs/2309.04042

Two mini-Neptunes Transiting the Adolescent K-star HIP 113103 Confirmed with TESS and CHEOPS
https://arxiv.org/abs/2309.04137

September 08, 2023 updates

Trajectory of a Spacecraft When It Passes by a Gravitational Body During Interstellar Travel
https://arc.aiaa.org/doi/10.2514/1.A35684

Planetary biotechnospheres, biotechnosignatures and the search for extraterrestrial intelligence
https://www.cambridge.org/core/journals/international-journal-of-astrobiology/article/planetary-biotechnospheres-biotechnosignatures-and-the-search-for-extraterrestrial-intelligence/089931BD61982779CCA1EDF6861E7472

Giant Impact Events for Protoplanets: Energetics of Atmospheric Erosion by Head-on Collision
https://iopscience.iop.org/article/10.3847/1538-4357/ace9ba

The Tianlin Mission: A 6 m UV/Opt/IR Space Telescope to Explore Habitable Worlds and the Universe
https://iopscience.iop.org/article/10.1088/1674-4527/ace90f

The Aligned Orbit of the Eccentric Proto Hot Jupiter TOI-3362b
https://arxiv.org/abs/2309.03306

A Wolf 359 in sheep’s clothing: Hunting for substellar companions in the fifth-closest system using combined high-contrast imaging and radial velocity analysis
https://arxiv.org/abs/2309.03402

September 07, 2023 updates

Scientists doubt claim of interstellar debris hitting Earth: here’s why https://www.nature.com/articles/d41586-023-02823-y

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://arxiv.org/abs/2309.02488

Tidally-excited inertial waves in stars and planets: exploring the frequency-dependent and averaged dissipation with nonlinear simulations https://arxiv.org/abs/2309.02520

Doppler confirmation of TESS planet candidate TOI1408.01: grazing transit and likely eccentric orbit
https://arxiv.org/abs/2309.03009

Cold Jupiters and improved masses in 38 Kepler and K2 small planet systems from 3661 HARPS-N radial velocities. No excess of cold Jupiters in small planet systems
https://arxiv.org/abs/2304.05773

September 06, 2023 updates

Testing the planetary hypothesis of NY Virginis: Anticipated change in the eclipse timing trend within the next five years
https://academic.oup.com/mnras/advance-article-abstract/doi/10.1093/mnras/stad2648/7260857

Doppler confirmation of TESS planet candidate TOI1408.01: grazing transit and likely eccentric orbit
https://academic.oup.com/mnrasl/advance-article-abstract/doi/10.1093/mnrasl/slad127/7260865

Visible extreme adaptive optics on extremely large telescopes: Towards detecting oxygen in Proxima Centauri b and analogs
https://arxiv.org/abs/2309.00725

Tempestas ex machina: A review of machine learning methods for wavefront control
https://arxiv.org/abs/2309.00730

Jupiter Atmospheric Models and Outer Boundary Conditions for Giant Planet Evolutionary Calculations
https://arxiv.org/abs/2309.00820

KMT-2021-BLG-1547Lb: Giant microlensing planet detected through a signal deformed by source binarity
https://arxiv.org/abs/2309.01280

Astronomy from the Moon: From Exoplanets to Cosmology and Beyond in Visible Light
https://arxiv.org/abs/2309.01421

A super-massive Neptune-sized planet
https://arxiv.org/abs/2309.01464

Fitting the Light Curve of 1I/`Oumuamua with a Nonprincipal Axis Rotational Model and Outgassing Torques
https://arxiv.org/abs/2309.01820

Information transmission via molecular communication in astrobiological environments
https://arxiv.org/abs/2309.01924