April 2021 - News, Starcharts and research

[Edwin Rod]

Hi everyone

 

Plenty of interesting items out this month, Highlights are the Ingenuity helicopter on mars, it’s been amazing to watch the videos. There was also a flare on Proxima centaur too that I need to read up on. Mike Brown has an interesting update on the search for an outer ice giant planet, new modelling suggests 5 earth masses and a different orbit?

There is an update on the RASNZ conference along with an update from John D as well to read.

Tonight’s Moon rise from home is also added in too.

It been a full on month and it’s amazing I have added this items together.

Cheers Edwin

Research papers

Interactions between collapsed bodies and the Solar system
https://arxiv.org/abs/2103.12745

Two Bright M Dwarfs Hosting Ultra-Short-Period Super-Earths with Earth-like Compositions
https://arxiv.org/abs/2103.12760

Anoxic Atmospheres on Mars Driven by Volcanism
https://arxiv.org/abs/2103.13012

The Curious Case of Argon
https://arxiv.org/abs/2103.15071

Evening home lighting adversely impacts the circadian system and sleep
https://www.nature.com/articles/s41598-020-75622-4

Earth's carbon deficit caused by early loss through irreversible sublimation
https://arxiv.org/abs/2104.02702

Quantifying the Classification of Exoplanets
https://arxiv.org/abs/2104.02991

Five carbon- and nitrogen-bearing species in a hot giant planet's atmosphere
https://arxiv.org/abs/2104.03352

Asteroids Were Born Big
https://arxiv.org/abs/0907.2512

Water in star-forming regions
https://arxiv.org/abs/2102.02225

Main ways in which stars influence the climate and surface habitability of their planets
https://arxiv.org/abs/2104.06391

How likely are Snowball episodes near the inner edge of the habitable zone
https://arxiv.org/abs/2104.06216


Injection of Inner Oort Cloud Objects Into the Distant Kuiper Belt by Planet Nine
https://arxiv.org/abs/2104.05799

Significant interstellar object production by close stellar flybys
https://arxiv.org/abs/2104.06845

Recovery of Spectra of Phosphine in Venus' Clouds
https://arxiv.org/abs/2104.09285

Tidal Effects on the Radial Velocities of V723 Mon
https://arxiv.org/abs/2103.05216

The effect of core formation on surface composition and planetary habitability
https://arxiv.org/abs/2104.10612


----------------------------------------------------------------------
Interesting News items

New theory suggests large blobs of material in Earth's mantle are remnants of protoplanet Theia
https://phys.org/news/2021-03-theory-large-blobs-material-earth.html

A very good look at lights
https://www.stuff.co.nz/life-style/well-good/300254567/how-energysaving-led-lights-disrupt-our-sleep

Planety Boundaries
https://news.mongabay.com/2021/03/the-nine-boundaries-humanity-must-respect-to-keep-the-planet-habitable

Alien life is out there
https://theconversation.com/alien-life-is-out-there-but-our-theories-are-probably-steering-us-away-from-it-124042


with darkness
https://www.eventfinda.co.nz/2021/within-the-hours-of-darkness/masterton


Trio of Fast-Spinning Brown Dwarfs May Reveal a Rotational Speed Limit
https://www.jpl.nasa.gov/news/trio-of-fast-spinning-brown-dwarfs-may-reveal-a-rotational-speed-limit



If Planet Nine Is Out There, It May Not Be Where We Think
https://www.sciencealert.com/if-planet-nine-is-out-there-it-may-not-be-where-we-think

The Inner Oort Cloud Connection
https://findplanetnine.blogspot.com/2021/04/the-inner-oort-cloud-connection.html

Injection of Inner Oort Cloud Objects Into the Distant Kuiper Belt by Planet Nine
https://arxiv.org/abs/2104.05799

A New Super-Earth Detected Orbiting A Red Dwarf Star
http://spaceref.com/exoplanets/a-new-super-earth-detected-orbiting-a-red-dwarf-star.html

First flight
https://www.jpl.nasa.gov/news/nasas-ingenuity-mars-helicopter-succeeds-in-historic-first-flight

Proxima Flare Captured at Multiple Wavelengths
https://www.centauri-dreams.org/2021/04/23/proxima-flare-captured-at-multiple-wavelengths/

Astronomy/News/Photos are my main interests and more links can be found @

Astronomy in New Zealand - Groups.io

https://groups.io/g/AstronomyNZ

Thanks Edwin

(A Science/Space and general interest posting enthusiast)