A Neutron Star in the Dust: Webb’s Incredible Discovery inside SN 1987A
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- Опубликовано: 11 июн 2024
- In this video, I tell you about the discovery of a neutron star in the supernova SN 1987A by the James Webb Space Telescope. A neutron star is the ultra-dense remnant of a massive star that exploded in a supernova. A neutron star is so dense that a teaspoon of its material would weigh billions of tons. A neutron star is also so magnetic that it can generate beams of radiation that sweep across the sky like a cosmic lighthouse. A neutron star is, in short, one of the most fascinating and extreme objects in the cosmos. But finding a neutron star is not easy, especially if it’s hidden in the dust and gas of a supernova remnant. That’s why astronomers have been searching for one in SN 1987A for over three decades, without success. SN 1987A is the closest and brightest supernova observed in modern times, and it occurred in a nearby galaxy called the Large Magellanic Cloud. Thanks to the James Webb Space Telescope, or JWST for short, astronomers have finally found the best evidence yet for the existence of a neutron star in SN 1987A. The JWST is the most advanced and ambitious space observatory ever launched, and it has been operating since late 2023. The JWST is designed to observe the universe in the infrared part of the electromagnetic spectrum, which is invisible to our eyes, but can penetrate through dust and reveal hidden wonders. The JWST has a huge mirror, 6.5 meters in diameter, and a suite of sophisticated instruments that can capture stunning images and spectra of distant and faint objects. Using the JWST, astronomers have observed the infrared emission from the dust and gas in SN 1987A, and they have noticed something unusual. The emission is not symmetric, but rather skewed to one side. This suggests that there is something heating up the dust on that side, something that is very hot and very energetic. Something like a neutron star. To confirm this hypothesis, astronomers have also analyzed the polarization of the infrared light, which is a measure of how the light waves are oriented. They have found that the polarization is also asymmetric, and that it matches the expected pattern of a neutron star’s magnetic field. This is a strong indication that the neutron star is indeed there, and that it is spinning and emitting radiation, like a pulsar. This discovery is a major breakthrough for the field of astrophysics, as it reveals the origin and nature of the neutron star, as well as the fate of the massive star that exploded in SN 1987A. It also demonstrates the incredible capabilities of the JWST, and the collaborative efforts of the scientific community. In this video, I explain how the JWST detected the neutron star, what are the properties and origin of the neutron star, and what are the implications and future prospects of the discovery. So, stay tuned and get ready to learn more about this amazing cosmic mystery.
Chapters:
00:00 Introduction
01:21 The JWST Discovery
04:57 The Hidden Neutron Star
10:38 Outro
11:25 Enjoy
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I know it's slang, and particularly American, but I've always heard this supernova referred to as "nineteen eighty-seven A". It would be much less tortured that way. If _you're_ finding it awkward, then there's a very high chance the people who work with these names all the time find them awkward in the same way and will revert to casual conversational tone just to make the number reasonable to say over and over.
Can't expect this attention to detail on an low effort AI generated narration. I couldn't get past the minute hearing the monotonous voice they've used.
What a beauty!! And bravo, JWST………
Thanks ,NASA. SN1987 has been an interest for quite some time now and to see it splayed out and deciphered is AMAZING! Thank you for all of the hard work. Lots of Love. ,JMc
Nice 😊.
Big Like because high quality documentation
Its ninteen eighty seven A not one thousand nine hundred and eighty seven A.. Supernovae are named for the year they happened. This is the first supernova detected in the year 1987. How do you have a space channel but lnow so little about space?
LOL 😆
*The year they are discovered. Not the year it happened. Since SN1987A is 170,000 light-years away.
Because it is a computer voice with maybe 10 bytes of memory.
Very very informative! Thanks!
I remember seeing it in the LMC when I was a teenager.
NSN Thanks!
Interesting... I was born on November 18, 1987, and was conceived on February 23, 1987
It's 19-87-A. Lol. It's named after the year it was discovered.
And 'A' means its the first supernova discovered in 1987 !!! That's SN 1987A !!!
موضوع تازه بود . چون اکثر ویدیوها تکراری و مشابه هستند ✨
I’m not impressed that NASA is using an error-prone AI to read the report. As others have commented, there are very peculiar usages such as 1,987 A vs 1987A. The whole point of the star’s name is that it’s the date it was found. Surely a human could spend 20 minutes to correct the errors?
Absolutely mind-numbing data coming from JWST is actually changing some scientific hypotheses.
If we’re not careful, we may, someday, uncover the true origin of our existence. YIKES 😊
this isn't an official channel lol
Realy I like it
❤😊amazing. Unvs
How far away is this neutron star from our solar system? How many light years away and when did the star go supernova, 1987? Or was that the year we discovered the neutron star and the supernova SN1987 occurred sometime in the near or distant past?
I think the robot- narrator could have explained these basic questions at the start of the video.
The supernova occurred in 1987, and it was 169,000 light years away. The neutron star 🌟 was discovered recently.
In the constellation called Sagittarius, at the center of our very own Galaxy, very close to the Milky Ways Monster Black Hole!
For those that are new to why neutrons in a neutron star doesn't collapse beyond a certain point, the reason which was not included in this video is a law called " The Pauli Exclusion Principle " where no two fermionic particles can occupy the same quantum state. Just helping.
Thanks for the info on the Pauli Exclusion Principle! Now I have to refresh my memory on what a Fermion is, and what ”spin" means)))
@@user-iy7tp3mz8f, no problem. I need to do some research, too: the word "spin" keeps resurfacing.
Why not use the entire EHT to view it? Sure would be a lot more interesting than theoretically "developed" man-made images of black holes!
I can't find you. I can't see you.
...to find the little monster with a diameter of 20-30 km is difficult, but the light will be located quickliest (they are extremely bright!) 👻
Really...
@@mohdnorsyafarullahbinzukri3844 - Yup !!!😉
One person with one Opinion, how about this,, "hey All that information actually rests on me" or you can just say as"' for right now, we dont know it for sure'" and or actually what he should do right now to make it better at the round of corner?
I wish these announcements would stick to the facts and not to bend them to make up for phantastic headline! "We have found a Neutron Star"... no, you don't! You've found effects that have a good chance to come from something like that but you have, until now, no hard facts. There might be no other "thing" except a neutron star in that location.. I give you that.. but the location is still to "dirty" / dusty to show the NS.
That is the crux with science selling estimations as facts: people, not familiar with the matter, tend to believe it "because a scientist said so!" Stick with the facts, folks! I know it doesn't sound as good as these made-up headlines but the result is more trustworthy and, BTW, what's wrong with saying "as for right now we don't know for sure.... yet!"
Exactly! The same happened with the cosmic fairy tale, the big bang and the beautiful singularity, the dark ages and now "nothing at all"...
I am amused that the narrator doesn’t realize that the star’s name is literally “supernova 1987 a” which tells you the year (1987) in which it exploded. The ‘a’ means that it was the first supernova observed that year. SN1987a was discovered in February of 1987 in the Large Magellanic Cloud, a satellite galaxy of our Milky Way.
Sure, go ahead and say “one thousand nine hundred and eighty seven” instead of “nineteen eighty seven” if that makes you happy. Astronomers and astronomy fans are amused. 😂
من خلال وصفكم لهذا النجم فهو تقريبا ما يسمى "بالنجم الطارق" لدينا نحن المسلمين والذي قد ذكر بالقران الكريم .
Cgi
And its 1987A as in the year😂
that was the year I came out of prison - for mudering a mosquito... 🤣
@@thekingofmojacar5333 - Did you say...The Mosquitoes ???
ruclips.net/video/6ofnD1V2QM4/видео.html
My life totally sucks I'm ready to die
When are the scientists going figure out that the amount of gravity changes the measures of time and distance which changes the speed of light?
Nah. Time and distance changes but light keeps chugging along at its own constant pace. Everywhere. All the time.
@@dekumarademosater2762 Speed is measured by time and distance.
Yeah, but funnily enough, the time and distance changes in such a way that the speed of light always stays exactly the same.
A Neutron Star duplicates the actions of a Naval Lighthouse on a small Island Entrance to an inlet to a Big or Small Cities or Towns water Way, like an island that marks shallow water depths, to Warn ships of the large size that they will scrape their bottoms on underwater Rocks, so they won't sink!