Recent Posts

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21
Spam / Re: Can we get 90002 posts?
« Last post by Toliman on October 20, 2019, 05:47:17 am »
I understand, sometimes it's hard.
I hope that no more problems.
22
Spam / Re: Last letter word!
« Last post by archaic on October 20, 2019, 05:45:40 am »
\Now back again, but so just glitchy. Cross your fingers!!!
23
Spam / Re: Can we get 90002 posts?
« Last post by archaic on October 20, 2019, 05:40:13 am »
Well, kinda, that's one full system crash and two software re-installs since that last post. Like I said, glitchy.
24
Spam / Re: Can we get 90002 posts?
« Last post by Toliman on October 20, 2019, 05:18:42 am »
Txantsan that it works for you :D :D

Hope thatit will still work.
25
Spam / Re: Can we get 90002 posts?
« Last post by archaic on October 20, 2019, 05:09:42 am »
Yay! it does!!!  :D  :D

Not sure for how long, this is as glitchy as hell.


(is hell glitchy?)
26
Spam / Re: Can we get 90002 posts?
« Last post by archaic on October 20, 2019, 05:08:29 am »
Does this work?
27
Science / Re: Space news topic and space related news
« Last post by Toliman on October 19, 2019, 04:14:47 pm »
ALMA Observes Counter-intuitive Flows Around Black Hole
https://www.almaobservatory.org/en/press-release/alma-observes-counter-intuitive-flows-around-black-hole/

At the center of a galaxy called NGC 1068, a supermassive black hole hides within a thick doughnut-shaped cloud of dust and gas. When astronomers used the Atacama Large Millimeter/submillimeter Array (ALMA) to study this cloud in more detail, they made an unexpected discovery that could explain why supermassive black holes grew so rapidly in the early Universe.

“Thanks to the spectacular resolution of ALMA, we measured the movement of gas in the inner orbits around the black hole,” explains Violette Impellizzeri of the National Radio Astronomy Observatory (NRAO), working at ALMA in Chile and lead author on a paper published in the Astrophysical Journal. “Surprisingly, we found two disks of gas rotating in opposite directions.”

Supermassive black holes already existed when the Universe was young, just a billion years after the Big Bang. But how these extreme objects, whose masses are up to billions of times the mass of the Sun, had time to grow so fast, is an outstanding question among astronomers. This new ALMA discovery could provide a clue. “Counter-rotating gas streams are unstable, which means that clouds fall into the black hole faster than they do in a disk with a single rotation direction,” said Impellizzeri. “This could be a way in which a black hole can grow rapidly.”

NGC 1068 (also known as Messier 77) is a spiral galaxy approximately 47 million light-years from Earth in the direction of the constellation Cetus. At its center is an active galactic nucleus, a supermassive black hole that is actively feeding itself from a thin, rotating disk of gas and dust, also known as an accretion disk.

Previous ALMA observations revealed that the black hole is gulping down material and spewing out gas at incredibly high speeds. This gas that gets expelled from the accretion disk likely contributes to hiding the region around the black hole from optical telescopes.
28
Science / Re: Possible first discovered exomoon
« Last post by Toliman on October 19, 2019, 04:10:44 pm »
Formation of exoplanetary satellites by pull-down capture
https://advances.sciencemag.org/content/5/10/eaaw8665

The large size and wide orbit of the recently announced exomoon candidate Kepler-1625b-i are hard to explain within traditional theories of satellite formation. We show that these properties can be reproduced if the satellite began as a circumstellar co-orbital body with the original core of the giant planet Kepler-1625b. This body was then drawn down into a circumplanetary orbit during the rapid accretion of the giant planet gaseous envelope, a process termed “pull-down capture.” Numerical integrations demonstrate the stability of the original configuration and the capture process. In this model, the exomoon Kepler-1625b-i is the protocore of a giant planet that never accreted a substantial gas envelope. Different initial conditions can give rise to capture into other co-orbital configurations, motivating the search for Trojan-like companions to this and other giant planets.
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Txantsan fwa fmawnìri nga pamrel si nì'ul nì'mun :)
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Science / Re: Astronomy thread/Kìng a teri tanhìä tìftia
« Last post by Toliman on October 19, 2019, 02:11:08 pm »
I had partly cloudy sky today evening (finally, previous nights were mostly cloudy), I took my telescope outside and I observed Saturn and few double stars and globular clusters on evening sky. Seeing was surprisingly very good so Saturn was great despite his low high above horizon, Cassini division was sharply visible and also few faint cloudy belts were visible on Saturn. From other objects, the most beautifull was globular cluster M15. It was nice, but short observation because more clouds came again.
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