Fraser Cain · @fraser
3266 followers · 1028 posts · Server m.universetoday.com
JWST Accidentally Found 21 Brown Dwarfs
JWST is the most powerful telescope ever built by humanity, and it's scanning into the very limits of the observable Universe to see the first galaxies coming together. However, as part of several galactic surveys, astronomers have already identified 21 brown dwarf candidates in the data, much closer to home. Some are as close as around 325 light-years, others as far as 13,700 light-years - farther than any brown dwarfs discovered. Quite a handy side-benefit.
Miro Collas · @Miro_Collas
458 followers · 13005 posts · Server masto.aiCold Brown Dwarf Emits Strange Periodic Radio Signals We Can't Explain - YouTube
https://www.youtube.com/watch?v=ZatVGtXC9Iw
#astronomy #cosmology #browndwarf
Mr.Trunk · @mrtrunk
4 followers · 5452 posts · Server dromedary.seedoubleyou.meGizmodo: Two-Faced: Wacky White Dwarf Keeps Its Surface Gases Separate https://gizmodo.com/wacky-white-dwarf-keeps-surface-gases-separate-1850655475 #technologyinternet #palomarobservatory #stellarevolution #ilariacaiazzo #spaceplasmas #lightsources #jamesfuller #whitedwarfs #browndwarf #startypes #star #sun
#technologyinternet #palomarobservatory #stellarevolution #ilariacaiazzo #spaceplasmas #lightsources #jamesfuller #whitedwarfs #browndwarf #startypes #star #sun
Miro Collas · @Miro_Collas
371 followers · 10540 posts · Server masto.aiNever Before Seen Brown Dwarf Binary Found By JWST - YouTube
https://www.youtube.com/watch?v=s1blDSD3giU
#astronomy #cosmology #browndwarf
ScienceActually · @scienceactually
52 followers · 168 posts · Server sfba.social
SDSS J0104+1535 is the heaviest known brown dwarf star - about 90 times the mass of Jupiter.
#science #sciencefacts #browndwarf #browndwarfstar #sdssj0104
#science #sciencefacts #browndwarf #browndwarfstar #sdssj0104
Daniel Fischer · @cosmos4u
1238 followers · 1809 posts · Server scicomm.xyzRadio interferometric observations of the #browndwarf LSR J1835+3259 reveal an extended #magnetosphere with a morphology compatible with the presence of a #radiationbelt, similar to that of Jupiter and Earth: https://arxiv.org/abs/2303.06453 - radio emitting ultracool dwarfs may behave as scaled up versions of Jupiter, validating the connection between dipole-ordered magnetic fields and the presence of belt-like morphologies and aurorae beyond our Solar System.
#radiationbelt #Magnetosphere #browndwarf
kk · @kriskozy
1 followers · 62 posts · Server mastodon.social
Mikko Tuomi · @mustapipa
1827 followers · 416 posts · Server scicomm.xyzAstronomers have photographed a brown dwarf orbiting HIP 21152, a young sun-like star in the Hyades Cluster.
The newly found brown dwarf called HIP 21152 B, is the first confirmed substellar companion of a main sequence star in Hyades discovered via direct imaging.
Its mass is between 22–36 #Jupiter masses.
#astronomy #browndwarf
https://phys.org/news/2023-01-astronomers-snap-image-brown-dwarf.html
Paper by Kuzuhara et al. (2023):
https://iopscience.iop.org/article/10.3847/2041-8213/ac772f
#browndwarf #astronomy #jupiter
Daniel Fischer · @cosmos4u
1125 followers · 1277 posts · Server scicomm.xyzDirect-imaging Discovery and Dynamical Mass of a #Substellar Companion Orbiting an Accelerating #Hyades Sun-like Star with SCExAO/CHARIS: https://iopscience.iop.org/article/10.3847/2041-8213/ac772f -> First Images of a Substellar Companion in the Hyades: https://aasnova.org/2022/08/29/first-images-of-a-substellar-companion-in-the-hyades/ and Direct Imaging Uncovers a Giant Planet-Like #BrownDwarf in the Hyades Cluster: https://subarutelescope.org/en/results/2023/01/23/3217.html
#browndwarf #Hyades #substellar
ScienceActually · @scienceactually
11 followers · 26 posts · Server sfba.social
Brown dwarfs were first called 'black dwarfs, but none of that really matters as they're actually red.
#science #sciencefacts #browndwarf #blackdwarf #reddwarf #brown #black #red
#science #sciencefacts #browndwarf #blackdwarf #reddwarf #brown #black #red
ScienceActually · @scienceactually
11 followers · 26 posts · Server sfba.social
Brown dwarfs can be as cold as ~250 Kelvin (-23.15°C or -9.67°F).
Thanks @funfactscience !
#science #sciencefacts #browndwarf #browndwarfs #browndwarfstar #cold
https://iopscience.iop.org/article/10.1088/2041-8205/786/2/L18
#science #sciencefacts #browndwarf #browndwarfs #browndwarfstar #cold
Ansgar Schmidt :verified: · @Ansi
370 followers · 1126 posts · Server mastodon.cloud
NASA Provides a Timelapse Movie Showing How the Universe Changed Over 12 Years https://www.universetoday.com/158169/nasa-provides-a-timelapse-movie-showing-how-the-universe-changed-over-12-years/ #timelapsevideos #citizenscience #browndwarfs #solarsystem #browndwarf #astronomy #neowise #wise
#citizenscience #browndwarfs #solarsystem #browndwarf #astronomy #NEOWISE #wise #timelapsevideos