The Discovery Of Grb 980425 And Sn 1998bw

(2015). Extra dimensions, graviton and tiny black holes. Retrieved 8 13, 2015, from CERN: home.web.cern.ch

”GX 339-4, illustrated here, is among the most dynamic binaries in the sky, with four major outbursts in the past seven years. In the system, an evolved star no more massive than the sun orbits a black hole estimated at 10 solar masses. “ [5]

Stars like our Sun, which are no more than 1.44 solar masses, will undergo fusion of hydrogen into helium. Over its life time the star slowly uses its supply of hydrogen by fusing it into helium. These reactions require high temperatures. Eventually the star will completely fuse hydrogen into helium in its core leaving inadequate amounts of thermal pressure to balance gravity. This will cause the centre of the star to contract to compensate for the heat energy lost.

A star will begin to formate in the densest and keenest regions of space in enormous sized

We (G4/2NSB) must do the necessary legwork to ensure the equipment they require does not violate any agreement the US has committed to (i.e. only personnel and no equipment).

What is left after the huge explosion is another dwarf star, a neutron star, or the fierce black hole. A neutron star is about the size of a city like Los Angeles, but has the mass of about two suns. This means it is incredibly dense and has an unbelievable gravitational pull, almost 2 billion times that on earth. In fact, this pull is so strong that it bends radiation and allows astronomers to see the back of the star. They also spin up to 48 thousand times per minute due to the energy from the supernova.

Stage 10 in the death of a star, you would start to think that with the core collapsing, that the star would just collapse and break apart. However, this only happens with starts under ¼ Sol and takes about a hundred billion years at the least. However, a star like our Sun, doesn’t die quite that quickly. Even under all the collapsing and expanding as a Red Giant, the core starts to burn helium in its core. Once this burning is about 100 million Kelvin and the density in the core has risen to the right level, the helium begins to fuse with carbon, which causes the reactor in the centre of the star to

“Active galactic nuclei” are objects occupying the center of many galaxies that consist of an accreting supermassive black hole and are some of the most luminous and powerful bodies in our known Universe. In the galactic-BH accretion process, gaseous matter from the galaxy is pulled into the black hole and is converted to into radiation that is then released radially outward into the host galaxy. Due to the rapid-fire accretion onto the Supermassive Black Hole, Active Galactic Nuclei (AGN) can emit radiation into their host galaxies that span much of the electromagnetic spectrum from X-rays, IR, UV, and radio waves. Researchers have organized AGN into groups based on their

“Black holes are perhaps the most exotic objects to impinge on the cosmic consciousness. They are formed when matter such as that from a dying massive star collapses in calamitously under its own gravity. forming a region of space in which the gravitational is so strong that it swallows all matter and radiation that come near it.” - Christopher Reynolds (Anderson, 2010).

(2) Sub-stellar objects with true masses above the limiting mass for thermonuclear fusion of deuterium are brown dwarfs, no matter how they formed nor where they are

The central part (the 'core') of the star undergoing 'supernova' explosion, collapses into a neutron star of mass in the range of 1.1 – 2 solar masses. During the collapse, atoms of the progenitor stars break, and subatomic particles become free and then positively charged protons convert to charge neutral neutrons (in addition to already existing neutrons) by adsorbing negatively charged electrons. Neutron stars are very dense objects. Their density can be as high as 1014 gm per cubic centimetre. They are also highly magnetised, their magnetic fields are usually in the range of 108 to 1016 Gauss (the strength of refrigerator magnets is around 50 Gauss). Neutron stars also spin very fast, rotating up to a few hundred times in a

"In the course of the past few decades, the Standard Model has passed critical tests derived from experiment, but it does not address some profound questions about the nature of the Universe," (AFP, 2015)

One popular theory that involves a large gas cloud which before the first stars were formed which collapsed into a quasi-star. With an initial mass of that of around 20 solar masses meaning the supermassive black hole starts off as an intermediate black hole and whether it will develop into a supermassive black hole

This essay will hopefully give you the knowledge and understanding of the concepts, properties, and processes involved with the space phenomenon of the black hole. It will describe how a black hole is generally formed, how it

Main sequence stars like our own sun enduring in a state of nuclear fusion during which they will produce energy for billions of years by replacing hydrogen to helium. Stars change over billions of years. When their main sequence phase ends they pass through other states of existence according to their size and other characteristics. The larger a star's mass, the shorter its lifespan is. As stars move toward the end of their lives, much of their hydrogen will be converted to helium. Helium sinks to the star's core and raises the star's temperature—causing its outer shell to expand. These large, puffy stars are known as Red Giants. The red giant phase is actually a prelude to a star shedding its outer layers and becoming a small, dense body called a White Dwarf. White dwarfs cool down for billions and billions of years, until they finally go dark and produce no energy at all. Once this happens, scientists have yet to observe, such stars become known as Black Dwarfs. A few stars avoid this evolutionary path and instead go out with a bang, exploding as Supernovae. These violent explosions leave behind a small core that will then turn into something called a Neutron Star or even, if the remainder is large enough, it is then turned into something called a Black Hole.