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 30, 2022 Updates

A hot sub-Neptune in the desert and a temperate super-Earth around faint M dwarfs
https://www.aanda.org/articles/aa/full_html/2022/10/aa43731-22/aa43731-22.html

Solar sail with inflatable toroidal shell
https://www.sciencedirect.com/science/article/abs/pii/S0094576522005045

Water vapor absorption line parameters in the 6760–7430 cm–1 region for application to CO2-rich planetary atmosphere
https://www.sciencedirect.com/science/article/abs/pii/S0022407322003211

Searching for the Transit Signal of the Exoplanet Gl 514 b in the TESS Photometry
https://iopscience.iop.org/article/10.3847/2515-5172/ac905e

Constraints on extragalactic transmitters via Breakthrough Listen observations of background sources
https://academic.oup.com/mnras/advance-article-abstract/doi/10.1093/mnras/stac2607/6726637?redirectedFrom=fulltext

Beating stellar systematic error floors using transit-based densities
https://arxiv.org/abs/2209.14301

TESS spots a mini-neptune interior to a hot saturn in the TOI-2000 system
https://arxiv.org/abs/2209.14396

Predicted diversity in water content of terrestrial exoplanets orbiting M dwarfs
https://arxiv.org/abs/2209.14563

Modification of the radioactive heat budget of Earth-like exoplanets by the loss of primordial atmospheres
https://arxiv.org/abs/2209.14691

An old warm Jupiter orbiting the metal-poor G-dwarf TOI-5542
https://arxiv.org/abs/2209.14830

September 29, 2022 updates

A hot sub-Neptune in the desert and a temperate super-Earth around faint M dwarfs – Color validation of TOI-4479b and TOI-2081b https://www.aanda.org/articles/aa/full_html/2022/10/aa43731-22/aa43731-22.html

Constraints on extragalactic transmitters via Breakthrough Listen observations of background sources
https://academic.oup.com/mnras/advance-article-abstract/doi/10.1093/mnras/stac2607/6726637

Survival of Terrestrial N2–O2 Atmospheres in Violent XUV Environments through Efficient Atomic Line Radiative Cooling
https://iopscience.iop.org/article/10.3847/1538-4357/ac86ca

Deconfusing Detections in Directly Imaged Multiplanet Systems https://iopscience.iop.org/article/10.3847/1538-4357/ac8d56

Reduced late bombardment on rocky exoplanets around M-dwarfs https://arxiv.org/abs/2209.14037

Are Am stars and hot-Jupiter planets related?
https://arxiv.org/abs/2209.14257

Lotka-Volterra Models for Extraterrestrial Self-Replicating Probes https://arxiv.org/abs/2209.14244

CREW HaT: A Magnetic Shielding System for Space Habitats
https://arxiv.org/abs/2209.13624

Validation of TOI-1221 b, a warm sub-Neptune exhibiting TTVs around a Sun-like star
https://arxiv.org/abs/2209.13651

September 28, 2022 updates

Earth is ‘well-hidden’ from extraterrestrial civilizations hunting for habitable planets
https://physicsworld.com/a/earth-is-well-hidden-from-extraterrestrial-civilizations-hunting-for-habitable-planets/

Earth through the looking glass: how frequently are we detected by other civilizations through photometric microlensing?
https://academic.oup.com/mnras/article-abstract/515/4/5927/6640428

A New Method for Finding Nearby White Dwarf Exoplanets and Detecting Biosignatures
https://arxiv.org/abs/2209.12914

The TEMPO Survey I: Predicting Yields of the Transiting Exosatellites, Moons, and Planets from a 30-day Survey of Orion with the Nancy Grace Roman Space Telescope
https://arxiv.org/abs/2209.12916

Is LTT 1445 Ab a Hycean World or a cold Haber World? Exploring the Potential of Twinkle to Unveil Its Nature
https://arxiv.org/abs/2209.12919

GPI 2.0: Optical Designs for the Upgrade of the Gemini Planet Imager Coronagraphic system
https://arxiv.org/abs/2209.12955

September 27, 2022 updates

Abiogenesis: the Carter argument reconsidered
https://www.cambridge.org/core/journals/international-journal-of-astrobiology/article/abiogenesis-the-carter-argument-reconsidered/BBA3D5F057C5212D76E01F1A0570AB0D

HD 23472: a multi-planetary system with three super-Earths and two potential super-Mercuries
https://www.aanda.org/articles/aa/full_html/2022/09/aa44293-22/aa44293-22.html

Null transit detections of 68 radial-velocity exoplanets observed by TESS
https://www.aanda.org/articles/aa/full_html/2022/09/aa43763-22/aa43763-22.html

Lightning-induced chemistry on tidally-locked Earth-like exoplanets
https://academic.oup.com/mnras/advance-article/doi/10.1093/mnras/stac2722/6717659

Tidally-induced migration of TESS gas giants orbiting M dwarfs
https://academic.oup.com/mnras/advance-article-abstract/doi/10.1093/mnras/stac2741/6717652

Sensitive Multibeam Targeted SETI Observations toward 33 Exoplanet Systems with FAST
https://iopscience.iop.org/article/10.3847/1538-3881/ac8bd5

Breakthrough Listen Search for the WOW! Signal
https://iopscience.iop.org/article/10.3847/2515-5172/ac9408

The Inferred Abundance of Interstellar Objects of Technological Origin
https://arxiv.org/abs/2209.11262

Millimeter Dust Emission and Planetary Dynamics in the HD 106906 System
https://arxiv.org/abs/2209.11775

Formation History of HD106906 and the Vertical Warping of Debris Disks by an External Inclined Companion
https://arxiv.org/abs/2209.11778

The Impact of Phase Equilibrium Cloud Models on GCM Simulations of GJ~1214b
https://arxiv.org/abs/2209.12205

MASADA: From Microlensing Planet Mass-Ratio Function to Planet Mass Function
https://arxiv.org/abs/2209.12501

On the characterization of GJ 504: a magnetically active planet-host star observed by the Transiting Exoplanet Survey Satellite (TESS)
https://arxiv.org/abs/2209.12752

September 23, 2022 updates

Frank Drake has passed away but his equation for alien intelligence is more important than ever
https://theconversation.com/frank-drake-has-passed-away-but-his-equation-for-alien-intelligence-is-more-important-than-ever-189935

Photometry and transit modelling of exoplanet WASP-140b
https://arxiv.org/abs/2209.10582

Planet-star interactions with precise transit timing. III. Entering the regime of dynamical tides
https://arxiv.org/abs/2209.10597

Atmospheric characterization of the ultra-hot Jupiter WASP-33b: Detection of Ti and V emission lines and retrieval of a broadened line profile
https://arxiv.org/abs/2209.10618

Evidence of Long-Term Period Variations in the Exoplanet Transit Database (ETD)
https://arxiv.org/abs/2209.10752

TOI-5205b: A Jupiter transiting an M dwarf near the Convective Boundary
https://arxiv.org/abs/2209.11160

FRECKLL: Full and Reduced Exoplanet Chemical Kinetics distiLLed
https://arxiv.org/abs/2209.11203