Astronomy Jargon 101: Type-II Supernovae – Universe Today
[ad_1]
In this series we are exploring the weird and wonderful world of astronomy jargon! You’ll have a blast learning about today’s topic: Type-II Supernovae!
When stars like our sun die, they turn themselves inside out in a gory, grisly display of fundamental elements. Despite the carnage it winds up being a pretty sight, creating the beautiful planetary nebulae.
But for stars bigger than the sun, they go out with a bang.
The problem is fusion. That’s how stars get their energy. Right now our sun is burning through several mountains’ worth of hydrogen every single second, leaving behind helium. As it ages, it will turn to burning that helium, producing carbon and oxygen. Not giving up quite yet, it will fuse that carbon and oxygen into silicon, magnesium, and iron.
And it turns out that iron is the end of the fusion line.
Once iron appears in the core of a giant star, you’re only minutes away from a Type-II (also known as “core collapse”, but that’s giving away the ending) supernova.
With each successive generation of heavier elements, the fusion rates happen faster and faster. That’s because the heavier elements yield less energy than their lighter cousins, and so the crushing gravity of the star’s own weight cranks up the intensity.
But fusing iron doesn’t release energy. It takes energy.
As soon as the iron core develops, the rug has been pulled out from underneath the star. All the surrounding material crushes into that tiny core at a healthy fraction of the speed of light. That material slams into the core with such a force that electrons get shoved inside protons, turning the whole core of iron into a giant ball of neutrons.
That ball of neutrons (properly called a “proto-neutron star”) can, temporarily at least, resist the continued collapse. So all that material bounces off the core, triggering a shockwave.
And a big, big boom.
A Type-II supernova.
[ad_2]
Original Post
I love your blog.. very nice colors & theme. Did you create this website yourself? Plz reply back as I’m looking to create my own blog and would like to know wheere u got this from. thanks
You made certain fine points there. I did a search on the subject matter and found a good number of persons will consent with your blog.
You really make it appear so easy with your presentation but I find this topic to be actually one thing which I believe I’d by no means understand. It seems too complex and extremely extensive for me. I’m taking a look ahead in your subsequent submit, I?¦ll try to get the hang of it!
Admiring the time and energy you put into your site and detailed information you provide. It’s awesome to come across a blog every once in a while that isn’t the same outdated rehashed information. Excellent read! I’ve bookmarked your site and I’m including your RSS feeds to my Google account.
I was recommended this blog by my cousin. I’m not sure whether this post is written by him as no one else know such detailed about my trouble. You’re incredible! Thanks!
hello!,I love your writing very so much! proportion we communicate more approximately your article on AOL? I require a specialist in this space to resolve my problem. Maybe that is you! Looking forward to peer you.
I am impressed with this internet site, really I am a fan.
Thanks a lot for sharing this with all of us you actually know what you are talking about! Bookmarked. Kindly also visit my website =). We could have a link exchange contract between us!
As I website possessor I think the content material here is very fantastic, appreciate it for your efforts.
Yay google is my world beater assisted me to find this outstanding website ! .
Fantastic website. A lot of useful info here. I’m sending it to some friends ans also sharing in delicious. And obviously, thanks for your effort!
You are my inhalation, I have few blogs and rarely run out from brand :). “To die for a religion is easier than to live it absolutely.” by Jorge Luis Borges.
Merely a smiling visitant here to share the love (:, btw outstanding design and style. “Treat the other man’s faith gently it is all he has to believe with.” by Athenus.
My brother recommended I might like this website. He was entirely right. This post truly made my day. You can not imagine just how much time I had spent for this info! Thanks!
I’d constantly want to be update on new articles on this web site, saved to bookmarks! .
I’ve been absent for some time, but now I remember why I used to love this website. Thanks , I’ll try and check back more frequently. How frequently you update your site?
A person essentially assist to make severely posts I might state. This is the very first time I frequented your website page and so far? I amazed with the research you made to create this particular publish amazing. Great job!
Your place is valueble for me. Thanks!…
Thanks for any other wonderful post. Where else may anyone get that kind of info in such a perfect manner of writing? I’ve a presentation next week, and I am on the look for such info.
Excellent site. Lots of useful information here. I am sending it to a few friends ans additionally sharing in delicious. And obviously, thank you in your effort!
What¦s Happening i am new to this, I stumbled upon this I’ve found It absolutely useful and it has helped me out loads. I’m hoping to give a contribution & help different users like its aided me. Great job.
You made some respectable factors there. I appeared on the web for the problem and found most individuals will go together with together with your website.
you’re really a good webmaster. The site loading speed is incredible. It seems that you are doing any unique trick. Furthermore, The contents are masterwork. you’ve done a excellent job on this topic!
Perfectly indited subject material, thanks for entropy.
I really like your writing style, great info, thank you for putting up :D. “You can complain because roses have thorns, or you can rejoice because thorns have roses.” by Ziggy.
Nice post. I was checking constantly this blog and I am impressed! Very useful information particularly the last part 🙂 I care for such information a lot. I was looking for this particular info for a long time. Thank you and good luck.
This is a topic close to my heart cheers, where are your contact details though?
Hello! I could have sworn I’ve been to this blog before but after browsing through some of the post I realized it’s new to me. Anyways, I’m definitely happy I found it and I’ll be book-marking and checking back frequently!
Pretty part of content. I simply stumbled upon your site and in accession capital to assert that I acquire actually loved account your blog posts. Any way I’ll be subscribing to your augment and even I fulfillment you get entry to constantly quickly.
I have been absent for a while, but now I remember why I used to love this website. Thank you, I’ll try and check back more often. How frequently you update your site?
You made some respectable points there. I appeared on the internet for the problem and found most individuals will go along with along with your website.
Well I really liked reading it. This post provided by you is very practical for good planning.
Some truly fantastic articles on this web site, thanks for contribution.
I precisely had to thank you so much all over again. I’m not certain the things I would’ve gone through without those techniques revealed by you over that situation. It was an absolute terrifying dilemma in my opinion, however , observing this professional fashion you resolved it made me to cry with contentment. Now i am grateful for this service and thus wish you find out what a powerful job you were doing training some other people using a blog. Most probably you’ve never encountered any of us.
I’m not that much of a online reader to be honest but your blogs really nice, keep it up! I’ll go ahead and bookmark your site to come back down the road. Cheers
Hello.This post was really motivating, especially because I was searching for thoughts on this subject last Sunday.
It’s actually a great and helpful piece of information. I am glad that you shared this useful info with us. Please keep us up to date like this. Thanks for sharing.
Its wonderful as your other articles : D, regards for putting up. “A great flame follows a little spark.” by Dante Alighieri.
FitSpresso is a natural weight loss supplement that will help you maintain healthy body weight without having to deprive your body of your favorite food or take up exhausting workout routines.
Thanks for sharing superb informations. Your web-site is so cool. I am impressed by the details that you have on this website. It reveals how nicely you understand this subject. Bookmarked this website page, will come back for extra articles. You, my friend, ROCK! I found simply the information I already searched all over the place and just could not come across. What an ideal site.
I just could not leave your web site prior to suggesting that I actually loved the usual info a person supply on your guests? Is gonna be again regularly to check up on new posts.
Hello there! Do you know if they make any plugins to protect against hackers? I’m kinda paranoid about losing everything I’ve worked hard on. Any recommendations?
Its like you read my mind! You appear to grasp so much about this, like you wrote the e book in it or something. I feel that you can do with some percent to pressure the message home a little bit, however instead of that, that is fantastic blog. An excellent read. I’ll certainly be back.
Nice read, I just passed this onto a colleague who was doing a little research on that. And he actually bought me lunch since I found it for him smile So let me rephrase that: Thank you for lunch!
I just could not depart your web site before suggesting that I really enjoyed the standard information a person provide for your visitors? Is gonna be back often to check up on new posts
Regards for helping out, good info. “The four stages of man are infancy, childhood, adolescence, and obsolescence.” by Bruce Barton.
Great line up. We will be linking to this great article on our site. Keep up the good writing.