January 2021 News, research and starcharts


Edwin Rod
 

Hi everyone

Please find this month’s newsletters and Starcharts attached.

There is no shortage of interesting papers this month. The highlights are the planets around Trappist-1 and TOI 178 two interesting systems with resonances. There are a range of interesting news items too.

It’s been a busy few weeks so I’ll leave you to look through the links and papers

Cheers Edwin






Research papers

The Role of Ultraviolet Photons in Circumstellar Astrochemistry
https://arxiv.org/abs/2012.14715

In Situ Geochronology for the Next Decade
https://arxiv.org/abs/2101.01131

Possible Atmospheric Diversity of Low Mass Exoplanets
https://arxiv.org/abs/2101.01277

Searching for Small Circumbinary Planets
https://arxiv.org/abs/2101.03186

The Copernican Principle Rules Out BLC1 as a Technological Radio Signal from the Alpha Centauri System
https://arxiv.org/abs/2101.04118


Around which stars can TESS detect Earth-like planets
https://arxiv.org/abs/2101.07898

Probing the capability of future direct imaging missions to spectrally constrain the frequency of Earth-like planets
https://arxiv.org/abs/2101.07378

Vertically resolved magma ocean-protoatmosphere evolution
https://arxiv.org/abs/2101.10991

Constraints on Planets in Nearby Young Moving Groups Detectable by High-Contrast Imaging and Gaia Astrometry
https://arxiv.org/abs/2101.11130

Complications in the ALMA Detection of Phosphine at Venus
https://arxiv.org/abs/2101.09831

Claimed detection of PH3 in the clouds of Venus is consistent with mesospheric SO2
https://arxiv.org/abs/2101.09837


The Extended Habitable Epoch of the Universe for Liquids Other than Water
https://arxiv.org/abs/2101.10341





Refining the transit timing and photometric analysis of TRAPPIST-1
https://arxiv.org/abs/2010.01074

Characterisation of the hydrospheres of TRAPPIST-1 planets
https://arxiv.org/abs/2101.08172

Super-Earths M Dwarfs and Photosynthetic Organisms Habitability in the Lab
https://arxiv.org/abs/2101.04448

Persistence of Flare-Driven Atmospheric Chemistry on Rocky Habitable Zone Worlds
https://arxiv.org/abs/2101.04507

Characterizing Atmospheres of Transiting Earth-like Exoplanets Orbiting M Dwarfs with James Webb Space Telescope
https://arxiv.org/abs/2101.04139


Oceanic Superrotation on Tidally Locked Planets
https://arxiv.org/abs/2101.11784



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Interesting News items

FORTHCOMING STAR PARTIES -



STARDATE – SOUTH ISLAND. Waitangi weekend, Fri 5th -Mon 8th February 2021. Staveley. Keep an eye on https://cas.org.nz/

STARDATE. Fri 12 and Sat 13 February 2021, at Stonehenge. Phoenix Astronomical Society. Contact secretary@...


The Stars are Comforting
https://www.rnz.co.nz/concert/programmes/stars


Spectroscopy Can Offer New Details of Surface of Venus
http://spaceref.com/venus/six-wavelength-spectroscopy-can-offer-new-details-of-surface-of-venus.html

Some sensible points in here
https://undark.org/2021/01/18/astronomy-discoveries-fall-victim-to-hype/

Astronomers estimate Titan's largest sea is 1,000-feet deep
https://www.eurekalert.org/pub_releases/2021-01/cu-aet012021.php



Starlink Satellites Are Fainter Now — But Still Visible
https://skyandtelescope.org/astronomy-news/starlink-satellites-fainter-but-still-visible/

Beyond Starlink: The Satellite Saga Continues
https://skyandtelescope.org/astronomy-news/beyond-starlink-the-satellite-saga-continues/

CHEOPS finds unique planetary system
http://nccr-planets.ch/blog/2021/01/25/cheops-finds-unique-planetary-system/
http://spaceref.com/exoplanets/cheops-finds-a-unique-planetary-system.html


6 Things to Know About NASA’s Mars Helicopter on Its Way to Mars
https://www.jpl.nasa.gov/news/6-things-to-know-about-nasas-mars-helicopter-on-its-way-to-mars

Saturns Tilt
http://spaceref.com/saturn/saturns-tilt-is-caused-by-its-moons.html




The 7 Rocky TRAPPIST-1 Planets May Be Made of Similar Stuff
https://www.jpl.nasa.gov/news/the-7-rocky-trappist-1-planets-may-be-made-of-similar-stuff

TRAPPIST-1's 7 Rocky Planets May Be Made of Similar Stuff
https://www.unibe.ch/news/media_news/media_relations_e/media_releases/2021/media_releases_2021/trappist_1_s_7_rocky_planets_may_be_made_of_similar_stuff/index_eng.html

TRAPPIST-1: Seven Worlds of Similar Compostion
https://www.centauri-dreams.org/2021/01/26/trappist-1-seven-worlds-of-similar-compostion/


Mercury
http://spaceref.com/mercury/study-reveals-messenger-watched-a-meteoroid-strike-mercury.html





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