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.

July 24, 2023 Updates

Isotopic enrichment of planetary systems from Asymptotic Giant Branch stars
https://arxiv.org/abs/2307.11147

Azimuthal patterns in planetesimal circumstellar disks
https://arxiv.org/abs/2307.11188

A solution to persistent RFI in narrowband radio SETI: The MultiBeam Point-source Scanning strategy
https://arxiv.org/abs/2307.11368

Characterizing planetary systems with SPIRou: M-dwarf planet-search survey and the multiplanet systems GJ 876 and GJ 1148
https://arxiv.org/abs/2307.11569

Retrieval of the dayside atmosphere of WASP-43b with CRIRES+
https://arxiv.org/abs/2307.11627

Preparation for an unsupervised massive analysis of SPHERE high-contrast data with PACO – Optimization and benchmarking on 24 solar-type stars
https://www.aanda.org/articles/aa/full_html/2023/07/aa45723-22/aa45723-22.html

The quest for Magrathea planets – I. Formation of second-generation exoplanets around double white dwarfs
https://www.aanda.org/articles/aa/full_html/2023/07/aa45827-22/aa45827-22.html

Wapiti: A data-driven approach to correct for systematics in RV data – Application to SPIRou data of the planet-hosting M dwarf GJ 251
https://www.aanda.org/articles/aa/full_html/2023/07/aa46472-23/aa46472-23.html

The chemical evolution of the solar neighbourhood for planet-hosting stars
https://academic.oup.com/mnras/advance-article-abstract/doi/10.1093/mnras/stad2167/7227929

July 21, 2023 updates

The quest for Magrathea planets – I. Formation of second-generation exoplanets around double white dwarfs
https://www.aanda.org/articles/aa/full_html/2023/07/aa45827-22/aa45827-22.html

Wapiti: A data-driven approach to correct for systematics in RV data – Application to SPIRou data of the planet-hosting M dwarf GJ 251
https://www.aanda.org/articles/aa/full_html/2023/07/aa46472-23/aa46472-23.html

Discovery and characterisation of two Neptune-mass planets orbiting HD 212729 with TESS
https://academic.oup.com/mnras/advance-article/doi/10.1093/mnras/stad2183/7227347

Classification of Trajectories in a Two-planet Exosystem Using the Generalized Three-body Problem
https://iopscience.iop.org/article/10.3847/1538-4357/acd75f

A Stability Timescale for Nonhierarchical Three-body Systems
https://iopscience.iop.org/article/10.3847/1538-4357/acd782

Interstellar Probe: Science, Engineering, Logistic, Economic, and Social Factors
https://sciendo.com/article/10.2478/arsa-2023-0003

Haze optical depth in exoplanet atmospheres varies with rotation rate: Implications for observations
https://arxiv.org/abs/2307.10931

TESS discovery of a super-Earth orbiting the M dwarf star TOI-1680
https://arxiv.org/abs/2307.05368

July 19, 2023 updates

Tentative co-orbital submillimeter emission within the Lagrangian region L5 of the protoplanet PDS 70 b
https://www.aanda.org/articles/aa/full_html/2023/07/aa46493-23/aa46493-23.html

The planetary system around HD 190622 (TOI-1054) – Measuring the gas content of low-mass planets orbiting F-stars
https://www.aanda.org/articles/aa/full_html/2023/07/aa45774-22/aa45774-22.html

Large-scale structures in the stellar wind of fast-rotating stars spawned by the presence of earth-like planets
https://academic.oup.com/mnras/advance-article-abstract/doi/10.1093/mnras/stad2148/7226205

Exoplanets: an easy, practice-oriented and fun project with Arduino
https://iopscience.iop.org/article/10.1088/1361-6552/ace1c9

A Re-Appraisal of CO/O2 Runaway on Habitable Planets Orbiting Low-Mass Stars
https://arxiv.org/abs/2307.08752

Tidal excitation of the obliquity of Earth-like planets in the habitable zone of M-dwarf stars
https://arxiv.org/abs/2307.08770

A Large and Variable Leading Tail of Helium in a Hot Saturn Undergoing Runaway Inflation
https://arxiv.org/abs/2307.08959

Could a Bolide Listed in the CNEOS Database have Originated from 1I/’Oumuamua?
https://arxiv.org/abs/2307.09085

Company for the ultra-high density, ultra-short period sub-Earth GJ 367 b: discovery of two additional low-mass planets at 11.5 and 34 days
https://arxiv.org/abs/2307.09181

July 18, 2023 updates

Analogous response of temperate terrestrial exoplanets and Earth’s climate dynamics to greenhouse gas supplement
https://link.springer.com/article/10.1038/s41598-023-38026-8

On Detecting Interstellar Scintillation in Narrowband Radio SETI
https://iopscience.iop.org/article/10.3847/1538-4357/acdee0

The HARPS search for southern extra-solar planets – XLVII. Five Jupiter-mass planets in long-period orbits, one highly irradiated Neptune, one brown dwarf, and five stellar binaries
https://www.aanda.org/articles/aa/full_html/2023/07/aa46203-23/aa46203-23.html

Constraining the Thickness of TRAPPIST-1 b’s Atmosphere from Its JWST Secondary Eclipse Observation at 15 μm
https://iopscience.iop.org/article/10.3847/2041-8213/ace03b

DMPP-4: Candidate sub-Neptune mass planets orbiting a naked-eye star
https://arxiv.org/abs/2307.07530

Orbital alignment of the eccentric warm Jupiter TOI-677 b
https://arxiv.org/abs/2307.07598

Another look at the dayside spectra of WASP-43b and HD 209458b: are there scattering clouds?
https://arxiv.org/abs/2307.08148

WASP-193b: An extremely low-density super-Neptune
https://arxiv.org/abs/2307.08350

Day and Night: Habitability of Tidally Locked Planets with Sporadic Rotation
https://arxiv.org/abs/2303.14546