what is the difference between type 1 and type 2 seyfert galaxies?
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Explanation: A Seyfert galaxy is a spiral galaxy with an active nucleus. ... Type I Seyfert galaxies are very bright sources of visible and ultraviolet light and x-rays. Type II Seyfert galaxies are very bright sources of infra-red and visible light.
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The Sun is a as a G2V type star, a yellow dwarf and a main sequence star. Stars are classified by their spectra (the elements that they absorb) and their temperature.
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Type II diamonds have no measurable nitrogen impurities. Type II diamonds absorb in a different region of the infrared, and transmit in the ultraviolet below 225 nm, unlike Type I diamonds. They also have differing fluorescence characteristics, but no discernible visible absorption spectrum.
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type of galaxy divided into two parallel classes: normal spirals and barred spirals. The normal spirals have arms that emanate from the nucleus, while barred spirals have a bright linear feature called a bar that straddles the nucleus, with the arms unwinding from the ends of the bar. The nucleus of a spiral…
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A type Ia supernova (read "type one-a") is a type of supernova that occurs in binary systems (two stars orbiting one another) in which one of the stars is a white dwarf. The other star can be anything from a giant star to an even smaller white dwarf.
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While spiral galaxies are bright, elliptical galaxies are dim. Spiral galaxies are hotbeds of star formation, but elliptical galaxies aren't nearly as prolific because they contain less gas and dust, which means fewer new (and brighter) stars are born.
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Quasars are part of a class of objects known as active galactic nuclei (AGN). Other classes include Seyfert galaxies and blazars. All three require supermassive black holesto power them.
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Type 2B hair has waves that are clearly defined and tightly drawn, think of surfer curls. This hair type tends to be frizzer than Type 2A and the waves form an “S” shape when dry. Type 2C hair has defined waves that start the roots and is thicker than the other subcategories.
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With either Spectra S1 and S2, you can control the the suction strength and cycle speed independently. The MAIN DIFFERENCE is just Spectra S1 has a built-in battery that lasts for 3 hours (if fully charged) while Spectra S2 does not. As a result of this: Spectra s1 is much more portable than Spectra S2.
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T1 and T2 Relaxation. We distinguish two types of relaxation, Spin-Lattice (T1, also known as longitudinal relaxation, or relaxation in the z-direction) and Spin-Spin (T2, also known as transverse relaxation, or relaxation in the x-y plane). ... T2 is loss of phase coherence among nuclei.
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A type I supernova occurs in closed binary systems where two average stars orbit around each other quite closely. ... A type II supernova occurs in larger stars of around 10 solar masses. After it leaves the main sequence it starts fusing increasingly heavy elements in shells around the core.
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['Andromeda Galaxy.', 'Canis Major Dwarf Galaxy.', 'Cygnus A.', 'Maffei I and II.', 'Magellanic Clouds.', 'Milky Way Galaxy.', 'Virgo A.']
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Answer: there is no difference between them because only similac advance is coming by stage 1 and stage 2.
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What is the difference between Type Ia and Type II supernovae? Physically, type II supernovae are caused by the collapse of a massive star. Type Ia supernovae are driven by a white dwarf which accretes enough mass to exceed the Chandrasekhar limit and collapses into a neutron star.
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Because, as you might know, the hotter something is, the more energetic the radiation it emits is. ... Quasars emit mostly gamma radiation, the most energetic type of EM radiation. Thus we must conclude that quasars are way hotter than the sun.
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Astronomers have found that our galaxy has two general populations of stars. Population I stars are younger stars found in the disk of the galaxy that contain lots of atoms heavier than helium (metals). Population II stars are older, metal-poor stars found in a galaxy's nuclear bulge, halo, and globular clusters.
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Galaxy classification There are three general types: elliptical, spiral, and irregular. Perhaps the most familiar kind of galaxy are spiral galaxies.