Have you ever wondered what a supernova is? Or even if the word t is a real? Well I’ll be talking about what a supernova is, what it does, and how it is made.
The word supernova is plural for supernovae or supernovas. The definition of a supernova is any violently exploding stars after eruption suddenly increases many millions of times its normal level. The supernova came around the 1930’s by Walter Baade and Fritz Zwicky. Supernovas are very rare to see they happen every 50 years in the Milky Way. Supernovas cannot be predicted in our galaxies it is impossible.(“Supernova”)
A supernova is an explosion of a massive supergiant star. It may shine with a brightness of 10 billion suns! The total energy output may be 10^44 joules, as much as the total output of the sun during its 10 billion year lifetime. The likely scenario is fusion proceeds to build up a core of iron. The “iron group” of elements around mass number A=60 are the most tightly bound nuclei, so no more energy can be gotten from nuclear fusion. Supernovas are classified at Type one if their light curves exhibit sharp maxima and then die away gradually. The maxima may be about 10 billion solar luminosities. Type two supernovas have less sharp peaks at maxima and peak at about 1 billion solar luminosities. They die away more sharply than Type one. Type two supernovas are not observed to occur in elliptical galaxies, and are thought to occur in population one type stars in the spiral arms of galaxies. Type one supernovas occur typically occur in elliptical galaxies, so they are probably Population type two stars. With the observation of a number of supernovas in other galaxies a more refined classification of supernovas has been developed based on the observed spectra. Th...
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...y result from short-lived massive stars. They are most commonly found in type Sc spirals, but also in the arms of other spiral galaxies and in irregular galaxy, especially starburst galaxies. (”supernova”)
Type Ib/c and II-L, and possibly most type IIn, supernovae are only thought to be produced from stars having near-solar metallicity levels that result in high mass loss from massive stars, hence they are less common in older more distant galaxies. The table shows the expected progenitor for the main types of core collapse supernova, and the approximate proportions of each in the local neighborhood. (”supernova”)
Works Cited
"Supernova." Wikipedia. Wikimedia Foundation, 11 Dec. 2013. Web. 12 Nov. 2013. .
"Supernovae." Supernovae. N.p., n.d. Web. 12 Nov. 2013. .
...f gas, which collapsed and broke up into individual stars. The stars are packed together most tightly in the center, or nucleus. Scientists believe it is possible that at the very center there was too much matter to form an ordinary star, or that the stars which did form were so close to each other that they coalesced to form a black hole. It is argued that really massive black holes, equivalent to a hundred million stars like the Sun, could exist at the center of some galaxies
& MCMILLAN, S. 2008. Astronomy Today - Sixth Edition, United States of America, Pearson Education, Inc.
A supernova remnant is a cloud of gas created in the explosion of a star as a supernova. Located 6,300 light years away, the Crab Nebula (M1) is one of the most famous supernova remnants and is one of only a few historically observed supernovae in the Milky Way Galaxy. It is specifically located at right ascension 5 hour...
Anthony Crehan, #10514 Mr. Constantinides Science 8, Period 4 April 8, 2014 Quasars and Pulsars Pulsars and Quasars Let’s start out at the very bottom: the definitions of a quasar and a pulsar. A quasar consists of a supermassive black hole surrounded by a cloud of dust that allows for focused beams of radiation. Quasars are usually only seen in moderately young galaxies, as they require a large amount of matter, commonly known as “stardust,” to keep the beam going. This energy source has to be extremely compact to give the quasar enough energy to exist. Once this fuel runs out, though, the quasar ceases to be and becomes a normal supermassive black hole.
This cluster located in Hercules consist of about 300,000 stars. It is more than “22,200 light years away, the brightest star in the cluster is call v11” (Constellation Guide, n.d.). The second objects that I find in the Hercules constellation is called NGC 6166. This object is classified as a supermassive type galaxy it’s an elliptical galaxy with a large number of stars. It is calculated that NGC 6166 consist of approximately 50 million stars, it is located about 490 million light years away, a galaxy that massive has a supermassive black hole at its core. The third objects is called Hercules A, it is an elliptical galaxy with plasma jets spanning over a million lights years around the galaxy. “It has a mass 1,000 times more than the milky way galaxy also at the center of Hercules A is its black hole which is more massive that the black hole at the center of the milky way” (Kerrod,
...leted of its nuclear fuel and lost its outer layers. When a small to medium (less than 10 solar masses) main-sequence star begins to run out of fuel in its core, the core will begin to collapse where hydrogen on the edges of the collapsed core can be compressed and heated (Chandra 2012). The nuclear fusion of this new hydrogen will create a new gush of power that will make the outer layers of the star to expand out; this is known as the red giant phase. In the red giant phase over millions of years, all of the stars energy supplies are used up leaving behind a hot core that is still surrounded by the expanded outer layers. The outer layers are eventually expelled by stellar winds which end up creating a planetary nebula and the hot core left behind forms a white dwarf star where the pull of gravity is supported by degeneracy pressure (p. 538 Bennett en al. 2013).
Of all the galaxies in the entire Universe these are the closest to our galactic system. About 170,000 light-years away from the Milky Way galaxy lie the Large Magellanic Cloud. With only 15 billion young bright stars, it is just one-quarter the size of our own galaxy. During the winter of 1987, a Canadian astronomer, Ian Shelton, spotted the first naked eye supernova since 1604, the result of a massive explosion. No more exciting and scientifically significant event has occurred over the last decade in science than Supernova 1987A, as it is known. Photographs taken on the night of February 23, 1987, of the Large Magellanic Cloud, a companion galaxy to our own Galaxy, at Canada's southern hemisphere observatory at La Silla, Chile, and at the Siding Springs Observatory in Australia, revealed a 6th-magnitude object where only 12th-magnitude blue supergiant stars had been observed before. Scientists believe that the progenitor of Supernova 1987A is a typical blue supergiant of spectral type B3. Spectra taken in 1977 do not suggest anything unusual happening in the outer layers of the star prior to undergoing the supernova outburst. This is not surprising since the real changes were occurring deep inside in a relatively tiny portion of the star's radius. The Large Cloud is quite important because it is the location of this Supernova 1987A, the exploded star that for a time shone brightly but that is now dim and dead.
Stars explode at the end of their lifetime, sometimes when they explode the stars leave a remnant of gasses and, dust behind. What the gasses come together to form depend on the size of the remnant. If the remnant is less than 1.4 solar masses it will become a white dwarf, a hot dead star that is not bright enough to shine. If the remnant is roughly 1.4 solar masses, it will collapse. “The protons and electrons will be squashed together, and their elementary particles will recombine to form neutrons”. What results from this reaction is called a neut...
Nebula that was destroyed after it’s sun went supernova. Troubled by his findings, the priest
The Orion Nebula is a spectacular sight. Consequently, it has been a preferred target of the Hubble Space Telescope (HST) over recent years. The HST has provided a great deal of insight into the complicated process of star formation. In June of 1994, C.
“The privilege of a lifetime is being who you are”- and with the Supernova the deaf can be who they are. A person that is deaf is in a terrible disaster and the rescuers don’t know any sign language and they are in a big crisis This will never happen with Supernova, Supernova is an AdaFruit® design and it has a one of a kind “LED Board” that is made from scratch. Most people that are deaf and don’t have anyone to talk to feel like outsiders. AdaFruit® is like an upgrade to the original RedBot®. The Supernova can be mobilized and controlled to be moved around in any situation, for instance, when there is an earthquake and someone gets hit in the head and that person can’t hear Supernova can come in and see what is wrong. Before all of this the idea was to make a RedBot® that wasn’t even a RedBot® is was going to
Waller, William H. The Milky Way: An Insider's Guide. Princeton, N.J: Princeton UP, 2013. 42+. Print.
Tyler, Pat. Supernova. NASA’s Heasarc: Education and Public Information. 26 Jan. 2003. 22 Nov. 2004
There are two types of ways a Supernova can be triggered. The first trigger is the result of a white dwarf accumulating matter from a companion. This causes the dwarf to reach a core temperature too high to survive which in turn makes an explosion. The second trigger is when a star’s nuclear fuel is diminishing and can no longer support the release of nuclear energy. If the star’s core is large enough it will breakdown and become a supernova. Most observations of a supernova are made through spectral lines. Classification agrees with the physical classification, because large stars are made of mostly hydrogen, while white dwarf stars are plain. White dwarfs have a bare surrounding because the original star’s explosion was so great that the winds pushed the hydrogen away.
...nucleus; this type of AGN was discovered byHeckman (1980) is called Low-Ionization Nuclear Emission-line Region (LINER); examples include the Andromeda Galaxy (M31) andM65.