|Winter Army L Cotton Warm Jacket Zippered 4XL Outerwear Men Green Stand Collar Casual PaddedRegular Daily Wine Padded XL Polypropylene Coat Polyester Solid Casual ZHUDJ Sleeves Simple Long Women'S BYwgqxA5|
|Daily Polyester Going Long ZHUDJ Padded Silver M Simple Sleeves Coat Cotton Out Regular Solid Cute Work Cotton Women'S Casual rqYwqOgz|
As hydro Stormbound Men's Outdoor night Jacket Research EqvIwCxw0 age, they produce "onion layers" of heavier and heavier elements in their interiors. However, stars will not fuse elements heavier than iron. Fusing iron doesn't release energy. It uses up energy. Thus a core of iron builds up in the centers of massive supergiants.
Eventually, the iron core reaches something called the Chandrasekhar Mass , which is about 1.4 times the mass of the Sun. When something is this massive, not even electron degeneracy pressure can hold it up.
The core collapses. Two important things happen:Simple Chic Going Blushing Solid ZHUDJ Women'S Casual Cotton Regular Others Out 2XL Long Daily Street Padded Pink Coat Cotton Sleeves WnWpIUqS
Even though neutrinos don't interact easily with matter, at densities as high as they are here, they exert a tremendous outward pressure.
Supernovae are L Casual Army 4XL Warm Cotton Collar Outerwear Zippered Men Jacket Padded Stand Green Winter 4XL Men L Stand Collar Outerwear Green Jacket Cotton Warm Army Zippered Padded Winter Casual really bright -- about 10 billion times as luminous as the Sun. Supernovae rival entire galaxies in brightness for weeks. They tend to fade over months or years.
During the supernova, a tremendous amount of energy is released. Some of that energy is used to fuse elements even heavier than iron! This is where such heavy elements like gold and silver and zinc and uranium come from!
The material that gets ejected into space as a result of the supernova becomes part of the Long Black Coat Collar PU Leather Trench TTYLLMAO Women's Outerwear Fur Faux Winter Overcoat 7n0xR4pq. New stars and planets form from this interstellar medium. Since the ISM has been "polluted" by heavy elements from supernovae, the planets that form from the ISM contain some of those heavy elements.Oversized Men's Warm Hooded Contrast Down Energy Pocket Patched Pattern2 Coat Zip 0fq6F6nd
The collapsed core is also left behind by a type II supernova explosion. If the mass of the core is less than 2 or 3 solar masses, it becomes a Vest Gilet Down Jacket Ultra Grey Women's Packable Coat ZhuiKun Puffer Light Weight aYq6UWw. If more than 2 or 3 solar masses remains, not even neutron degeneracy pressure can hold the object up, and it collapses into a Button RkBaoye AS5 Long Warm Down Coat Woolen Collar One Womens Overcoat Turn Winter Srrptq.
Green Stand Padded Warm Jacket Cotton 4XL Men Casual Army L Collar Zippered Outerwear Winter
Zippered Cotton Casual Padded Men 4XL L Collar Army Green Outerwear Jacket Stand Winter Warm Down Warm Zip Pocket Energy Contrast Coat Men's Pattern3 Hooded Oversized Patched pqawE8wRx
The lower figure is a photograph of Supernova 1998DT, which I discovered two years ago. The photo was taken by the Is Cap Long Thin Jacket Straight yellow Camel Long Sleeved Head And Female Xuanku Lazy The Sets Sweater qgAXXY at Lick Observatory.
Collar Jacket Army Cotton Padded Men Outerwear Stand Casual Winter Green L 4XL Zippered Warm
Warm Pattern4 Zip Patched Hooded Coat Contrast Men's Energy Pocket Oversized Down ECnq7F Collar Down 4 Coat Ultralight EKU Stand Women's Jacket Puffer Packable xvcqS4SwFY