Active Galactic Nuclei Research Papers

Q.8) Non- rotating black holes are known as Schwarzschild black holes which collapse to a point of infinite density at its center. The rest of the volume from the event horizon to the singularity of a Schwarzchild black hole is empty space. While on the other hand, rotating black holes known as Kerr black holes spin thousands of times every second which are faster than pulsars. They also contain a donut shaped region called the ergoregion which is just outside the event horizon. Objects never remain at rest at this particular region. (DTU 10ED Page:

Although, it is happening in some of the closer galaxies such as NGC 253. The Hubble Space Telescope has revealed very luminous star clusters, dust lanes, dense gas and glowing gas in the core of this starburst galaxy. The Hubble Space Telescope has also recognized several regions of extreme star formation, that also includes a bright and very compacted star cluster, which confirms the theory that stars are often born in dense star clusters inside of

As they develop, bars apparently become one of the most important catalysts for galaxy evolution. They force a large amount of gas towards the galactic center, fueling new star formation, building central bulges of stars, and feeding massive black holes. Galaxies are thought to initially assemble from, and grow in size through, mergers with other smaller galaxies. After this phase is complete, however, the only other dramatic way for galaxies to evolve is through the action of

ies, but rather elliptical galaxies with a disky isophotal shape, i.e. systems which are, to

Images of the galaxy in the radio portion of the electromagnetic spectrum show two jets protruding in opposite directions from the galaxy's center. These jets extend many times the width of the portion of the host galaxy which emits radiation at visible wavelengths.[5] At the ends of the jets are two lobes with "hot spots" of more intense radiation at their edges. These hot spots are formed when material from the jets collides with the surrounding intergalactic medium.[6]

“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 have been theorized since 1916. However, no scientist has ever discovered a black hole in certainty. In theory, A black hole is created when a star of three or more solar masses collapses. “One solar mass is equal to the mass of the sun,” (Mclintock 1). A star collapses when the outward push of the combustion reaction no longer has the required forces compete with the inward pull of gravity. Most astronomers believe that the Milky Way contains millions of theses invisible devils, which are massive stars that have collapsed. In theory, anything could become a black hole if it were simply compressed into its Schwarzschild radius. For instance, Mount Everest has a Schwarzschild radius that is less than a nanometer,

Coupled with new discoveries, black holes frequently cause series of events throughout a universe. According to The Gale Encyclopedia of Science, in their article titled, “Active Galactic Nuclei”, “Active Galactic Nuclei’s (AGNs) are located at the centers of some galaxies—perhaps most galaxies—and emit a tremendous amount of energy across part or all of the electromagnetic spectrum, sometimes on the order of trillion times the output of the Sun” (The Gale Encyclopedia of Science). In other words, AGNs are the center of the universe and can be violently energetic objects. Leading astronomers concluded that a super massive black hole was at the center of every AGN, and the main source of its power, containing a million to ten billion times the mass of the sun (The Gale Encyclopedia of Science). Eagerly,

The accretion disk is an outer ring located on the outer parts of a black hole and is the part where interstellar matter such as asteroids are spiraling towards the center into the event horizon. When matter is being consumed by the event horizon, this matter is moving at super high velocities. These high velocities interact with friction causing the matter to heat up and emit light. Because the matter spiraling towards singularity emits light, this light causes the accretion disk to be very bright. The ergosphere is the region where objects start to be affected by the gravitational pull of the black hole. It is the region right before the event horizon, where it is still possible to escape from the gravitational pull with the proper escape velocity. The ergosphere on black holes that rotate are regions that cause spacetime to be

all of you probably know what a black hole is, its a black thing in space that is like a vacuum and sucks up anything in its way, this is pretty much what most people think of when they think of a black hole.

“Dark Stars,” are dense enough to prevent light from escaping into space. “Dark Stars” are known and Black Holes and Black Holes were believe for it to capture light there must be a density high enough to be capable, but since no one has survived and measured the density of a black hole we believe that in that center it has an infinite density. http://physicsforidiots.com/space/black-holes/ The idea on how Black Holes are studied by the mass of the dying star. Density can draw out light if it were strong enough to cover the mass. This supports the claim if a Black Hole would engulf the mass of a sun no trace of

Yesterday, NASA released news that will help us understand the formation of oval galaxies, specifically, the new data answered some old questions about why oval galaxies take so long to form. It turns out that the way a black hole controls the proto-matter of a baby galaxy actually regulates star birth as the galaxy takes shape around it.

Black holes had always piqued my interests, from when a small child intently devoured documentary to documentary to when a confused teenager encapsulated herself in a black hole of her own. The science of the black hole transfixed my childhood sense of curiosity, but especially the point that the scientific world labeled the “singularity”, the point at which gravity became infinite.

"As galaxies fall through these larger halos, the superheated intergalactic plasma between them removes their gas in a fast-acting

GRBs, the collapsar model, the core collapse of a massive star into a black hole or