by APOD Robot » Wed Jun 23, 2021 4:09 am
STARFORGE: A Star Formation Simulation
Explanation: How do stars form? Most form in
giant molecular clouds located in the
central disk of a galaxy. The process is started, influenced, and limited by the
stellar winds,
jets,
high energy starlight, and
supernova explosions of previously existing stars. The
featured video shows these complex interactions as computed by the
STARFORGE simulation of a gas cloud 20,000 times the mass of
our Sun. In the
time-lapse visualization, lighter regions indicate denser gas, color encodes the gas speed (purple is slow, orange is fast), while dots indicate the positions of newly
formed stars. As
the video begins, a gas cloud spanning about 50
light years begins to condense under its own gravity. Within 2 million years, the first stars form, while newly formed massive stars are seen to expel
impressive jets. The simulation is
frozen after 4.3 million years, and the
volume then rotated to gain a three-dimensional perspective. Much remains unknown about
star formation, including
the effect of the jets in limiting the masses of subsequently formed stars.
[url=https://apod.nasa.gov/apod/ap210623.html] [img]https://apod.nasa.gov/apod/calendar/S_210623.jpg[/img] [size=150]STARFORGE: A Star Formation Simulation[/size][/url]
[b] Explanation: [/b] How do stars form? Most form in [url=https://apod.nasa.gov/apod/ap210502.html]giant molecular clouds[/url] located in the [url=https://astrobites.org/2013/04/17/the-whirlpool-galaxy-like-youve-never-seen-it-before/]central disk of a galaxy[/url]. The process is started, influenced, and limited by the [url=https://astronomy.swin.edu.au/cosmos/S/Stellar+Winds]stellar winds[/url], [url=https://astronomy.swin.edu.au/cosmos/S/stellar+jets]jets[/url], [url=https://en.wikipedia.org/wiki/Ionizing_radiation]high energy starlight[/url], and [url=https://apod.nasa.gov/apod/ap210118.html]supernova explosions[/url] of previously existing stars. The [url=https://youtu.be/Aehqb-vDV_w]featured video[/url] shows these complex interactions as computed by the [url=http://www.starforge.space/]STARFORGE[/url] simulation of a gas cloud 20,000 times the mass of [url=https://solarsystem.nasa.gov/solar-system/sun/overview/]our Sun[/url]. In the [url=http://www.starforge.space/movies.html]time-lapse visualization[/url], lighter regions indicate denser gas, color encodes the gas speed (purple is slow, orange is fast), while dots indicate the positions of newly [url=https://science.nasa.gov/astrophysics/focus-areas/how-do-stars-form-and-evolve]formed stars[/url]. As [url=https://youtu.be/BEckYJwCJno]the video[/url] begins, a gas cloud spanning about 50 [url=https://spaceplace.nasa.gov/light-year/en/]light years[/url] begins to condense under its own gravity. Within 2 million years, the first stars form, while newly formed massive stars are seen to expel [url=https://img.huffingtonpost.com/asset/5bad12683c000032000b0e42.jpeg]impressive[/url] [url=https://apod.nasa.gov/apod/ap210622.html]jets[/url]. The simulation is [url=https://apod.nasa.gov/apod/ap181218.html]frozen[/url] after 4.3 million years, and the [url=https://youtu.be/QSivvdIyeG4]volume then rotated[/url] to gain a three-dimensional perspective. Much remains unknown about [url=https://en.wikipedia.org/wiki/Star_formation]star formation[/url], including [url=https://arxiv.org/abs/2010.11249]the effect of the jets in limiting the masses of subsequently formed stars[/url].
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