Astronomers have discovered protective “cocoons” that block gamma-ray bursts


Astronomers have discovered protective “cocoons” that block gamma-ray bursts planet-today.com
With the help of the Big Canary Telescope, astronomers from Spain managed to fix a “cocoon” of energy surrounding a distant gamma-ray burst, which could prevent the glow of this gamma-ray burst through a star, hiding from our eyes.

The relationship between gamma-ray bursts (GRB) and supernovae has always been considered confusing. GRB is a large-scale cosmic burst of explosive energy, the most striking electromagnetic events occurring in the Universe, but it is known that not all powerful supernovae produce them. Their sporadic nature has puzzled scientists for decades, but now they finally have some answers.

During a recent study of a distant gamma-ray burst, astronomers recorded a certain “cocoon” of energy surrounding it. In their opinion, GRB create these cocoons, transferring energy to them. When transferring too much energy, they weaken and shine through the star, becoming visible. Thus, the results of a study by the staff of the Institute of Astrophysics of Andalusia (Spain), published in the journal Nature, could explain why powerful supernovae do not always cause gamma-ray bursts.

At the end of their lives, low-mass stars, such as the Sun, will quietly disappear into darkness, and stars with a greater mass will explode, turning into a supernova. At the same time, it is believed that huge stars, which are 25 times the mass of the Sun, exploding, turn into a hypernova, which shines 10 times brighter than a supernova and leaves behind a black hole or a neutron star. It is known that gamma-ray bursts are almost always emitted by these hypernovae, but astronomers have also seen several that do not produce GRB at all. Until recently, their absence baffled researchers.

But as early as December 2017, an astronomer team noticed a gamma-ray burst 171205A emanating from another galaxy, where the star SN 2017iuk had already turned into a black hole or a neutron star, but had not yet thrown out its outer layers and had not yet exploded. GRB, which usually overshadows all hypernova, was suspiciously dim. Thanks to this, astronomers were able to trace this phenomenon.

Using data from the Gran Telescopio Canarias telescope in Spain, they noticed something strange – a “cocoon” of high energy and rapidly expanding particles surrounding the GRB. A team of scientists measured the chemical composition of the object and found that it radiated more energy than the GRB itself. This led researchers to the conviction that, passing through a star, the gamma-ray burst created a cocoon, transferring a huge amount of energy to it. However, if he conveyed too much energy, he would not have enough resources to shine through the outer layers of the star. If these cocoons are created in all hypernovae, this may explain why some objects emit gamma-ray bursts, while others do not.


Comments

  1. casino bonus codes
    slots online
    play casino
    online casinos
    russian roulette game

    ReplyDelete
  2. play blackjack
    blackjack rules
    play casino slots
    roulette game
    casino game

    ReplyDelete
  3. Thanks very nice blog!

    ReplyDelete
  4. Hola! I've been reading your site for a long time now and finally got the courage to go ahead and give you a shout out from Porter Texas!
    Just wanted to say keep up the great work!

    ReplyDelete
  5. Interesting blog! Is your theme custom made or did you download
    it from somewhere? A theme like yours with a few
    simple adjustements would really make my blog shine.

    Please let me know where you got your design.
    With thanks

    ReplyDelete
  6. When someone writes an paragraph he/she keeps the thought of a user in his/her brain that how a user can be aware of it.
    So that's why this post is great. Thanks!

    ReplyDelete
  7. Hey there! This post couldn't be written any better!
    Reading through this post reminds me of my previous room mate!
    He always kept chatting about this. I will
    forward this post to him. Fairly certain he will have a good read.
    Thanks for sharing!

    ReplyDelete
  8. Appreciating the time andd effort you put into your website and
    in depth information you offer. It's nice to come across a
    blog every once in a while that isn't the same olld
    rehashed material. Wonderful read! I've bookmarked your site and I'm
    including your RSS feeds to my Google account.

    ReplyDelete
  9. online casinos real money
    online slots real money
    online games real money
    online casinos real money
    best online casino real money

    ReplyDelete
  10. Amazing things here. I am very satisfied to look your post.
    Thank you so much and I'm looking forward to touch you.
    Will you kindly drop me a e-mail?

    ReplyDelete
  11. online casinos real money
    real money casino
    real money online casino
    online casinos real money
    casino real money games

    ReplyDelete
  12. real money online casino
    online slots real money
    casino real money games
    online casino real money usa
    online casino games real money

    ReplyDelete
  13. best online casino real money
    online games real money
    best online casino real money
    online casino games real money
    online games real money

    ReplyDelete
  14. online casino real money
    online casino real money usa
    real money casino
    casino real money games
    online casinos real money

    ReplyDelete
  15. I have fun with, result in I found exactly what I was having a
    look for. You have eended my four day long hunt! God Bless yyou man. Have a nice day.
    Bye

    ReplyDelete
  16. real money casino
    casino real money
    online casino games real money
    real money online casino
    online games real money

    ReplyDelete
  17. It's hard to come by esperienced people in this
    particular topic, but you sound like you know what you're talking about!
    Thanks

    ReplyDelete

Post a Comment