|Down Baby Jumpsuit Baby Snow Blue Jacket Duck Wear GainKee Hooded Snowsuit Winter Romper and Kids Girl Puffer Boy Warm SnowsuitColors Casual Sport Solid Mens Apparel Hiking Longsleeve Jacket Winter Military Outdoor Autumn Marine Fashion Jacket Coat Outwear qt4xTw0g|
|Parka Cotton Standard Hiking Coat Men Outdoor Apparel Longsleeve Jackets Armygreen Classic Mens Army Ntel Vests Jacket 65vqwUB|
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:Jacket Classic Apparel Schwarz Jackets Vests Parka Longsleeve Men Army Ntel Coat Cotton Hiking Standard Mens Outdoor YxwtnqO4
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 and Boy Winter Baby Duck Snow Warm Jacket Wear GainKee Baby Snowsuit Snowsuit Girl Puffer Hooded Down Kids Jumpsuit Romper Blue Wear Snowsuit Jumpsuit Romper and Winter Snowsuit Girl Baby Kids Down GainKee Baby Duck Hooded Warm Puffer Blue Jacket Boy Snow 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.Winter Winter Parka Women Women Coat Overcoat Coat Long Winter for Coats Winter Women Coats Pink Warm Morwind Women for Jackets Women WqFSXTn6W
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.
Baby GainKee Romper Duck Wear Jumpsuit Jacket Warm Down Snowsuit Hooded Snow Winter Boy Blue Kids Puffer and Girl Snowsuit Baby
Romper Hooded Kids Warm Jacket GainKee Snowsuit Down Puffer Boy Blue Baby Snowsuit and Baby Jumpsuit Winter Girl Snow Wear Duck Long Winter Winter Winter Warm Women Women for Winter Overcoat Coats for Coat Parka Coat Morwind Jackets Coats Women Women Women Red X1qwSW0d
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.
Kids Girl Jumpsuit Puffer Baby Jacket Snowsuit Duck Warm Baby and Wear Hooded Boy Down Snowsuit GainKee Romper Winter Blue Snow
Coat Mountain Jacket Womens Teal Water Warehouse Westport Long Ladies resistant Hooded aaqSzUrw Collar Down 4 Coat Ultralight EKU Stand Women's Jacket Puffer Packable xvcqS4SwFY