writing.exchange is one of the many independent Mastodon servers you can use to participate in the fediverse.
A small, intentional community for poets, authors, and every kind of writer.

Administered by:

Server stats:

336
active users

#BrownDwarfs

0 posts0 participants0 posts today
NASA<p>NASA’s Webb Peers Deeper into Mysterious Flame Nebula <a href="https://science.nasa.gov/missions/webb/nasas-webb-peers-deeper-into-mysterious-flame-nebula/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">science.nasa.gov/missions/webb</span><span class="invisible">/nasas-webb-peers-deeper-into-mysterious-flame-nebula/</span></a> <a href="https://social.beachcom.org/tags/NASA" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NASA</span></a> <a href="https://social.beachcom.org/tags/Astrophysics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Astrophysics</span></a> <a href="https://social.beachcom.org/tags/BrownDwarfs" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>BrownDwarfs</span></a> <a href="https://social.beachcom.org/tags/GoddardSpaceFlightCenter" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GoddardSpaceFlightCenter</span></a> <a href="https://social.beachcom.org/tags/JamesWebbSpaceTelescopeJWST" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>JamesWebbSpaceTelescopeJWST</span></a> <a href="https://social.beachcom.org/tags/ScienceResearch" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ScienceResearch</span></a> <a href="https://social.beachcom.org/tags/StarFormingNebulae" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>StarFormingNebulae</span></a> <a href="https://social.beachcom.org/tags/TheUniverse" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>TheUniverse</span></a></p>
earthling<p>An Introduction to Brown Dwarfs by John Gizis, 2024</p><p>From very-low-mass stars to super-Jupiters</p><p>This book provides an introduction to brown dwarfs aimed at advanced undergraduates and beginning graduate students, supplementing stellar astrophysics or (exo)planetary science classes. It emphasizes the key theoretical ideas and the main observational results that support those ideas. </p><p><a href="https://iopscience.iop.org/book/mono/978-0-7503-3387-0" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">iopscience.iop.org/book/mono/9</span><span class="invisible">78-0-7503-3387-0</span></a> </p><p><span class="h-card" translate="no"><a href="https://a.gup.pe/u/bookstodon" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>bookstodon</span></a></span> <br><a href="https://mastodon.social/tags/books" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>books</span></a> <br><a href="https://mastodon.social/tags/nonfiction" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>nonfiction</span></a> <br><a href="https://mastodon.social/tags/astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>astronomy</span></a> <br><a href="https://mastodon.social/tags/BrownDwarfs" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>BrownDwarfs</span></a></p>
NASA<p>NASA’s Webb Exposes Complex Atmosphere of Starless Super-Jupiter <a href="https://science.nasa.gov/missions/webb/nasas-webb-exposes-complex-atmosphere-of-starless-super-jupiter/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">science.nasa.gov/missions/webb</span><span class="invisible">/nasas-webb-exposes-complex-atmosphere-of-starless-super-jupiter/</span></a> <a href="https://social.beachcom.org/tags/NASA" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NASA</span></a> <a href="https://social.beachcom.org/tags/Astrophysics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Astrophysics</span></a> <a href="https://social.beachcom.org/tags/BrownDwarfs" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>BrownDwarfs</span></a> <a href="https://social.beachcom.org/tags/Exoplanets" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Exoplanets</span></a> <a href="https://social.beachcom.org/tags/GoddardSpaceFlightCenter" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GoddardSpaceFlightCenter</span></a> <a href="https://social.beachcom.org/tags/JamesWebbSpaceTelescopeJWST" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>JamesWebbSpaceTelescopeJWST</span></a> <a href="https://social.beachcom.org/tags/ScienceResearch" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ScienceResearch</span></a> <a href="https://social.beachcom.org/tags/TheUniverse" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>TheUniverse</span></a></p>
Massimo Luciani<p><a href="https://mastodon.social/tags/astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>astronomy</span></a> <a href="https://mastodon.social/tags/BrownDwarfs" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>BrownDwarfs</span></a> <a href="https://mastodon.social/tags/NGC602" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NGC602</span></a> <a href="https://mastodon.social/tags/JWST" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>JWST</span></a> </p><p>An article published in "The Astrophysical Journal" reports the identification of 64 brown dwarf candidates in the star cluster NGC 602 in the Small Magellanic Cloud, one of the Milky Way's satellite galaxies. A team of researchers used the James Webb Space Telescope to obtain the sensitivity and resolution needed to detect possible objects halfway between the planet and the star about 200,000 light-years away.<br><a href="https://english.tachyonbeam.com/2024/10/24/first-candidate-brown-dwarfs-discovered-outside-the-milky-way/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">english.tachyonbeam.com/2024/1</span><span class="invisible">0/24/first-candidate-brown-dwarfs-discovered-outside-the-milky-way/</span></a></p>
Massimo Luciani<p><a href="https://mastodon.social/tags/astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>astronomy</span></a> <a href="https://mastodon.social/tags/stars" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>stars</span></a> <a href="https://mastodon.social/tags/BrownDwarfs" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>BrownDwarfs</span></a> <a href="https://mastodon.social/tags/Gliese229B" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Gliese229B</span></a> </p><p>Two articles, one published in the journal "Nature" and one in "The Astrophysical Journal Letters", report the results of two independent studies on Gliese 229 B, the first brown dwarf whose existence was confirmed, which conclude that it's actually a pair of close brown dwarfs. </p><p><a href="https://english.tachyonbeam.com/2024/10/18/the-brown-dwarf-gliese-229-b-is-actually-a-pair-of-close-brown-dwarfs/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">english.tachyonbeam.com/2024/1</span><span class="invisible">0/18/the-brown-dwarf-gliese-229-b-is-actually-a-pair-of-close-brown-dwarfs/</span></a></p>
Lazarou Monkey Terror 🚀💙🌈<p>I suspect that just as there are many stellar doubles out there, so it goes with brown dwarfs</p><p><a href="https://phys.org/news/2024-10-twins-mystery-famed-brown-dwarf.html" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">phys.org/news/2024-10-twins-my</span><span class="invisible">stery-famed-brown-dwarf.html</span></a></p><p><a href="https://mastodon.social/tags/BrownDwarfs" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>BrownDwarfs</span></a> <a href="https://mastodon.social/tags/Space" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Space</span></a> <a href="https://mastodon.social/tags/Astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Astronomy</span></a> <a href="https://mastodon.social/tags/Gliese229B" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Gliese229B</span></a></p>
Daniel Fischer<p>The JWST weather report from the nearest <a href="https://scicomm.xyz/tags/BrownDwarfs" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>BrownDwarfs</span></a> - multiperiod JWST NIRSpec + MIRI monitoring of the benchmark binary brown dwarf WISE 1049AB: <a href="https://academic.oup.com/mnras/article/532/2/2207/7712857?login=false" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">academic.oup.com/mnras/article</span><span class="invisible">/532/2/2207/7712857?login=false</span></a> -&gt; Scorching storms on distant worlds revealed in new detail: <a href="https://ras.ac.uk/news-and-press/news/scorching-storms-distant-worlds-revealed-new-detail" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">ras.ac.uk/news-and-press/news/</span><span class="invisible">scorching-storms-distant-worlds-revealed-new-detail</span></a></p>
Daniel Pomarède<p>Stellar surprise – astronomers uncover methane emission on a cold brown dwarf for the first time</p><p><a href="https://www.tcd.ie/news_events/articles/2024/stellar-surprise--astronomers-uncover-methane-emission-on-a-cold-brown-dwarf-for-the-first-time/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">tcd.ie/news_events/articles/20</span><span class="invisible">24/stellar-surprise--astronomers-uncover-methane-emission-on-a-cold-brown-dwarf-for-the-first-time/</span></a></p><p>📷 This artist concept portrays the brown dwarf W1935. The team speculates that the methane emission may be due to processes generating aurorae, shown here in red. Credit: NASA, ESA, CSA, Leah Hustak (Space Telescope Science Institute).</p><p><a href="https://mastodon.social/tags/discovery" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>discovery</span></a> <a href="https://mastodon.social/tags/aurora" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>aurora</span></a> <a href="https://mastodon.social/tags/JWST" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>JWST</span></a> <a href="https://mastodon.social/tags/aurorae" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>aurorae</span></a> <a href="https://mastodon.social/tags/browndwarfs" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>browndwarfs</span></a> <a href="https://mastodon.social/tags/W1935" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>W1935</span></a> <a href="https://mastodon.social/tags/glowing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>glowing</span></a> <a href="https://mastodon.social/tags/methane" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>methane</span></a> <a href="https://mastodon.social/tags/astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>astronomy</span></a> <a href="https://mastodon.social/tags/astrophysics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>astrophysics</span></a> <a href="https://mastodon.social/tags/astrodon" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>astrodon</span></a> <a href="https://mastodon.social/tags/space" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>space</span></a> <a href="https://mastodon.social/tags/science" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>science</span></a> <a href="https://mastodon.social/tags/research" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>research</span></a> <a href="https://mastodon.social/tags/STEM" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>STEM</span></a></p>
NASA<p>A Solar Neighborhood Census, Thanks to NASA Citizen Science <a href="https://science.nasa.gov/get-involved/citizen-science/a-solar-neighborhood-census-thanks-to-nasa-citizen-science/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">science.nasa.gov/get-involved/</span><span class="invisible">citizen-science/a-solar-neighborhood-census-thanks-to-nasa-citizen-science/</span></a> <a href="https://social.beachcom.org/tags/NASA" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NASA</span></a> <a href="https://social.beachcom.org/tags/AstrophysicsDivision" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>AstrophysicsDivision</span></a> <a href="https://social.beachcom.org/tags/BrownDwarfs" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>BrownDwarfs</span></a> <a href="https://social.beachcom.org/tags/CitizenScience" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>CitizenScience</span></a> <a href="https://social.beachcom.org/tags/NEOWISE" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NEOWISE</span></a> <a href="https://social.beachcom.org/tags/Stars" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Stars</span></a> <a href="https://social.beachcom.org/tags/TheUniverse" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>TheUniverse</span></a> <a href="https://social.beachcom.org/tags/WISEWideFieldInfraredSurveyExplorer" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>WISEWideFieldInfraredSurveyExplorer</span></a></p>
Daniel Fischer<p>An HST survey of 33 T8 to Y1 brown dwarfs - NIR photometry and multiplicity of the coldest isolated objects: <a href="https://stsci-opo.org/STScI-01HRABPNJMAE3XS5P2RAV1A3RP.pdf" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">stsci-opo.org/STScI-01HRABPNJM</span><span class="invisible">AE3XS5P2RAV1A3RP.pdf</span></a> -&gt; NASA's Hubble Finds that Aging <a href="https://scicomm.xyz/tags/BrownDwarfs" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>BrownDwarfs</span></a> Grow Lonely: <a href="https://hubblesite.org/contents/news-releases/2024/news-2024-005" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">hubblesite.org/contents/news-r</span><span class="invisible">eleases/2024/news-2024-005</span></a></p>
NASA<p>NASA’s Hubble Finds that Aging Brown Dwarfs Grow Lonely <a href="https://science.nasa.gov/missions/hubble/nasas-hubble-finds-that-aging-brown-dwarfs-grow-lonely/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">science.nasa.gov/missions/hubb</span><span class="invisible">le/nasas-hubble-finds-that-aging-brown-dwarfs-grow-lonely/</span></a> <a href="https://social.beachcom.org/tags/NASA" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NASA</span></a> <a href="https://social.beachcom.org/tags/BrownDwarfs" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>BrownDwarfs</span></a> <a href="https://social.beachcom.org/tags/GoddardSpaceFlightCenter" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GoddardSpaceFlightCenter</span></a> <a href="https://social.beachcom.org/tags/HubbleSpaceTelescope" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>HubbleSpaceTelescope</span></a> <a href="https://social.beachcom.org/tags/Missions" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Missions</span></a> <a href="https://social.beachcom.org/tags/TheUniverse" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>TheUniverse</span></a></p>
NASA<p>NASA’s Webb Finds Signs of Possible Aurorae on Isolated Brown Dwarf <a href="https://www.nasa.gov/missions/webb/nasas-webb-finds-signs-of-possible-aurorae-on-isolated-brown-dwarf/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">nasa.gov/missions/webb/nasas-w</span><span class="invisible">ebb-finds-signs-of-possible-aurorae-on-isolated-brown-dwarf/</span></a> <a href="https://social.beachcom.org/tags/NASA" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NASA</span></a> <a href="https://social.beachcom.org/tags/JamesWebbSpaceTelescopeJWST" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>JamesWebbSpaceTelescopeJWST</span></a> <a href="https://social.beachcom.org/tags/Auroras" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Auroras</span></a> <a href="https://social.beachcom.org/tags/BrownDwarfs" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>BrownDwarfs</span></a> <a href="https://social.beachcom.org/tags/GoddardSpaceFlightCenter" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GoddardSpaceFlightCenter</span></a> <a href="https://social.beachcom.org/tags/Heliophysics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Heliophysics</span></a> <a href="https://social.beachcom.org/tags/ScienceResearch" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ScienceResearch</span></a> <a href="https://social.beachcom.org/tags/Stars" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Stars</span></a> <a href="https://social.beachcom.org/tags/TheUniverse" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>TheUniverse</span></a></p>
Massimo Luciani<p><a href="https://mastodon.social/tags/astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>astronomy</span></a> <a href="https://mastodon.social/tags/JWST" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>JWST</span></a> <a href="https://mastodon.social/tags/BrownDwarfs" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>BrownDwarfs</span></a> <a href="https://mastodon.social/tags/IC348" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>IC348</span></a> <a href="https://mastodon.social/tags/PerseusCloud" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>PerseusCloud</span></a> </p><p>An article published in "The Astronomical Journal" reports the discovery of three brown dwarfs in the star formation area cataloged as IC 348, part of the large Perseus Cloud. A team of researchers used the James Webb Space Telescope to study that area searching for brown dwarf candidates and identifying three with masses less than eight times Jupiter's. </p><p><a href="https://english.tachyonbeam.com/2023/12/14/three-small-brown-dwarfs-discovered-in-the-perseus-cloud/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">english.tachyonbeam.com/2023/1</span><span class="invisible">2/14/three-small-brown-dwarfs-discovered-in-the-perseus-cloud/</span></a></p>
NASA<p>NASA’s Webb Identifies Tiniest Free-Floating Brown Dwarf <a href="https://www.nasa.gov/missions/webb/nasas-webb-identifies-tiniest-free-floating-brown-dwarf/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">nasa.gov/missions/webb/nasas-w</span><span class="invisible">ebb-identifies-tiniest-free-floating-brown-dwarf/</span></a> <a href="https://social.beachcom.org/tags/NASA" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NASA</span></a> <a href="https://social.beachcom.org/tags/JamesWebbSpaceTelescopeJWST" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>JamesWebbSpaceTelescopeJWST</span></a> <a href="https://social.beachcom.org/tags/Astrophysics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Astrophysics</span></a> <a href="https://social.beachcom.org/tags/BrownDwarfs" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>BrownDwarfs</span></a> <a href="https://social.beachcom.org/tags/Exoplanets" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Exoplanets</span></a> <a href="https://social.beachcom.org/tags/GoddardSpaceFlightCenter" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GoddardSpaceFlightCenter</span></a> <a href="https://social.beachcom.org/tags/Missions" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Missions</span></a> <a href="https://social.beachcom.org/tags/ScienceResearch" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ScienceResearch</span></a> <a href="https://social.beachcom.org/tags/Stars" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Stars</span></a> <a href="https://social.beachcom.org/tags/TheUniverse" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>TheUniverse</span></a></p>
RS, Author, Novelist, Prosaist<p>Interesting fact for <a href="https://eldritch.cafe/tags/science" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>science</span></a> <a href="https://eldritch.cafe/tags/astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>astronomy</span></a> and <a href="https://eldritch.cafe/tags/sciencefiction" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>sciencefiction</span></a> <a href="https://eldritch.cafe/tags/writers" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>writers</span></a> and <a href="https://eldritch.cafe/tags/authors" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>authors</span></a>. A Jupiter-class planet does not get proportionally wider with greater mass, it gets denser and maybe a little wider. Brown dwarfs, which are what happens with a Jupiter-class planet gets massive enough the fuse deuterium, may actually be less wide than Jupiter. One such example is 61 J-mass but .89 J-radius!</p><p>You want to get this correct. I've read articles that conflate mass and radius, and that renders the article ridiculous. Here is a very interesting article on the subject here:</p><p><a href="https://www.sciencealert.com/jupiter-sized-cannonball-planet-discovered-with-a-density-greater-than-lead" rel="nofollow noopener noreferrer" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">sciencealert.com/jupiter-sized</span><span class="invisible">-cannonball-planet-discovered-with-a-density-greater-than-lead</span></a></p><p>Why bring this up? A furnace-hot brown dwarf with an angry red glow is front and center (or in the middle of) one of my <a href="https://eldritch.cafe/tags/sff" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>sff</span></a> stories. Would worlds orbiting it be planets or moons?</p><p><a href="https://eldritch.cafe/tags/nonfiction" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>nonfiction</span></a> <a href="https://eldritch.cafe/tags/fiction" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>fiction</span></a> <a href="https://eldritch.cafe/tags/writing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>writing</span></a> <a href="https://eldritch.cafe/tags/writer" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>writer</span></a> <a href="https://eldritch.cafe/tags/writingcommunity" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>writingcommunity</span></a> <a href="https://eldritch.cafe/tags/exoplanets" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>exoplanets</span></a> <a href="https://eldritch.cafe/tags/BrownDwarfs" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>BrownDwarfs</span></a></p>
mark 🇮🇪 🇪🇺<p>today's fun science youtube recommendation. <br><a href="https://youtu.be/NkcvESFbg9c" rel="nofollow noopener noreferrer" target="_blank"><span class="invisible">https://</span><span class="">youtu.be/NkcvESFbg9c</span><span class="invisible"></span></a></p><p><a href="https://social.vivaldi.net/tags/BrownDwarfs" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>BrownDwarfs</span></a> <a href="https://social.vivaldi.net/tags/Astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Astronomy</span></a> <a href="https://social.vivaldi.net/tags/Physics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Physics</span></a></p>
Michael<p>Hello to the Mastodon community! I am a graduate student at Ohio State interested in Brown Dwarf &amp; Exoplanet Atmospheres. <a href="https://mastodon.online/tags/exoplanet" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>exoplanet</span></a> <a href="https://mastodon.online/tags/BrownDwarfs" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>BrownDwarfs</span></a></p>
Massimo Luciani<p><a href="https://mastodon.social/tags/astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>astronomy</span></a> <a href="https://mastodon.social/tags/planets" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>planets</span></a> <a href="https://mastodon.social/tags/exoplanets" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>exoplanets</span></a> <a href="https://mastodon.social/tags/BrownDwarfs" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>BrownDwarfs</span></a> An article published in "The Astrophysical Journal" reports the discovery of an object orbiting BD+60 1417, a young star a little smaller than the Sun, which could be a gas giant planet but also a small brown dwarf. </p><p><a href="https://english.tachyonbeam.com/2021/12/14/an-object-on-the-border-between-planet-and-brown-dwarf-discovered-in-the-cosmic-neighborhood/" rel="nofollow noopener noreferrer" target="_blank"><span class="invisible">https://</span><span class="ellipsis">english.tachyonbeam.com/2021/1</span><span class="invisible">2/14/an-object-on-the-border-between-planet-and-brown-dwarf-discovered-in-the-cosmic-neighborhood/</span></a></p>
Massimo Luciani<p><a href="https://mastodon.social/tags/astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>astronomy</span></a> <a href="https://mastodon.social/tags/BrownDwarfs" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>BrownDwarfs</span></a> <a href="https://mastodon.social/tags/TheAccident" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>TheAccident</span></a> An article published in "The Astrophysical Journal Letters" reports a study on the brown dwarf classified as WISEA J153429.75-104303.3, or simply WISE 1534–1043, nicknamed the Accident because it was discovered purely by chance. <br><a href="https://english.tachyonbeam.com/2021/09/03/a-brown-dwarf-nicknamed-the-accident-is-passing-through-the-cosmic-neighborhood/" rel="nofollow noopener noreferrer" target="_blank"><span class="invisible">https://</span><span class="ellipsis">english.tachyonbeam.com/2021/0</span><span class="invisible">9/03/a-brown-dwarf-nicknamed-the-accident-is-passing-through-the-cosmic-neighborhood/</span></a></p>
Massimo Luciani<p><a href="https://mastodon.social/tags/astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>astronomy</span></a> <a href="https://mastodon.social/tags/BrownDwarfs" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>BrownDwarfs</span></a> <a href="https://mastodon.social/tags/stars" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>stars</span></a> An article published in the journal "Astronomy &amp; Astrophysics" reports a study on 5 objects on the boundary between brown dwarf and star discovered thanks to NASA's TESS space telescope. <br><a href="https://english.tachyonbeam.com/2021/09/01/5-objects-on-the-boundary-between-brown-dwarf-and-star-have-been-discovered/" rel="nofollow noopener noreferrer" target="_blank"><span class="invisible">https://</span><span class="ellipsis">english.tachyonbeam.com/2021/0</span><span class="invisible">9/01/5-objects-on-the-boundary-between-brown-dwarf-and-star-have-been-discovered/</span></a></p>