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 22, 2020 updates

In Search for a Planet Better than Earth: Top Contenders for a Superhabitable World
https://liebertpub.com/doi/10.1089/ast.2019.2161

An ultrahot Neptune in the Neptune desert
https://www.nature.com/articles/s41550-020-1142-z

M51-ULS-1b: The First Candidate for a Planet in an External Galaxy
https://arxiv.org/abs/2009.08987

A Significant Increase in Detection of High-Resolution Emission Spectra Using a Three-Dimensional Atmospheric Model of a Hot Jupiter
https://arxiv.org/abs/2009.09030

Dynamical Mass Estimates of the β Pictoris Planetary System Through Gaussian Process Stellar Activity Modelling
https://arxiv.org/abs/2009.09276

TFAW survey. I. Wavelet-based denoising of K2 light curves. Discovery and validation of two new Earth-sized planets in K2 campaign 1
https://arxiv.org/abs/2009.09285

A numerical method for computing optimum radii of host stars and orbits of planets, with application to Kepler-11, Kepler-90, Kepler-215, HD 10180, HD 34445, and TRAPPIST-1
https://arxiv.org/abs/2009.09732

Theoretical vs. observational uncertainties: composition of giant exoplanets
https://arxiv.org/abs/2009.09746

On the interstellar origin of high-inclination Centaurs
https://arxiv.org/abs/2009.09773

Going back to basics: accelerating exoplanet transit modelling using Taylor-series expansion of the orbital motion
https://arxiv.org/abs/2009.09965

September 21, 2020 updates

π Earth: A 3.14 day Earth-sized Planet from K2’s Kitchen Served Warm by the SPECULOOS Team
https://iopscience.iop.org/article/10.3847/1538-3881/aba95f

Circular Binary Star and an Interstellar Interloper: The Analytical Solution
https://www.sciencedirect.com/science/article/abs/pii/S1384107620303377

MOA-2009-BLG-319Lb: A Sub-Saturn Planet Inside the Predicted Mass Desert
https://arxiv.org/abs/2009.08461

ACCESS: Confirmation of no potassium in the atmosphere of WASP-31b
https://arxiv.org/abs/2009.08472

RoadRunner: a fast and flexible exoplanet transit model
https://arxiv.org/abs/2009.08500

Multi-orbital-phase and multi-band characterization of exoplanetary atmospheres with reflected light spectra
https://arxiv.org/abs/2009.08579

Oumuamuas passing through molecular clouds
https://arxiv.org/abs/2009.08773

TOI-481 b & TOI-892 b: Two long period hot Jupiters from the Transiting Exoplanet Survey Satellite
https://arxiv.org/abs/2009.08881

WASP-117 b: an eccentric hot-Saturn as a future complex chemistry laboratory
https://arxiv.org/abs/2009.08916

Novel Technosignatures
https://arxiv.org/abs/2009.08873

September 17, 2020 updates

A giant planet candidate transiting a white dwarf
https://www.nature.com/articles/s41586-020-2713-y

The White Dwarf Opportunity: Robust Detections of Molecules in Earth-like Exoplanet Atmospheres with the James Webb Space Telescope
https://iopscience.iop.org/article/10.3847/2041-8213/aba9d3

Exploration of trans-Neptunian objects using the Direct Fusion Drive
https://www.sciencedirect.com/science/article/abs/pii/S0094576520305610

Abundant atmospheric methane from volcanism on terrestrial planets is unlikely and strengthens the case for methane as a biosignature
https://arxiv.org/abs/2009.07761

On The Biomass Required To Produce Phosphine Detected In The Cloud Decks Of Venus
https://arxiv.org/abs/2009.07835

September 16, 2020 updates

GJ 357 b – A super-Earth orbiting an extremely inactive host star
https://www.aanda.org/articles/aa/abs/2020/09/aa38280-20/aa38280-20.html

An Increase in Small-planet Occurrence with Metallicity for Late-type Dwarf Stars in the Kepler Field and Its Implications for Planet Formation
https://arxiv.org/abs/2009.06638

Revisiting the Architecture of the KOI-89 System
https://arxiv.org/abs/2009.06850

An exact, generalised Laplace resonance in the HR 8799 planetary system
https://arxiv.org/abs/2009.07006

An Earth-like stellar wind environment for Proxima Centauri c
https://arxiv.org/abs/2009.07266

September 15, 2020 updates

Life in Extreme Environments: Insights in Biological Capability – Chapter 13: Analytical astrobiology: the search for life signatures and the remote detection of biomarkers through their Raman spectral interrogation
https://www.amazon.com/Life-Extreme-Environments-Biological-Capability-ebook/dp/B08GG9S318/

Fine-Tuning in the Physical Universe – Chapter 12: On the Temporal Habitability of Our Universe
https://www.amazon.com/Fine-Tuning-Physical-Universe-David-Sloan-ebook/dp/B08GG9RHHG/

Phosphine gas in the cloud decks of Venus
https://www.nature.com/articles/s41550-020-1174-4

A search for He I airglow emission from the hot Jupiter tau Boo b
https://arxiv.org/abs/2009.05821

Discriminating between hazy and clear hot-Jupiter atmospheres with CARMENES
https://arxiv.org/abs/2009.06280

The Venusian Lower Atmosphere Haze as a Depot for Desiccated Microbial Life: A Proposed Life Cycle for Persistence of the Venusian Aerial Biosphere
https://arxiv.org/abs/2009.06474

Phosphine on Venus Cannot be Explained by Conventional Processes
https://arxiv.org/abs/2009.06499

Two Planets Straddling the Habitable Zone of The Nearby K dwarf Gl 414A
https://arxiv.org/abs/2009.06503