All about Astronomy Thread - Our Expanding Universe: Age, History & Other Facts

Discussion in 'Off Topic' started by Dr. AMK, Jul 27, 2017.

  1. Dr. AMK

    Dr. AMK Living with Hope

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    Strange Galaxy With a Tidal Tail That's Losing 40% of Its Mass
     
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    Dr. AMK Living with Hope

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    The Astronomical Records in… Trees?
     
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    Dr. AMK Living with Hope

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    Could A Spaceship Wrap Around The Universe & Destroy Itself?
     
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    Dr. AMK Living with Hope

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    What The Color Of A Star Reveals About Its Composition
     
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    Dr. AMK Living with Hope

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    Dr. AMK Living with Hope

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    E0102
    E0102, short for 1E 0102.2-7219, is the remnant of a supernova that exploded in the Small Magellanic Cloud, a neighbouring galaxy of the Milky Way. The supernova was caused when a star much more massive than the Sun collapsed under its own gravity. The explosion would have been visible from the Southern Hemisphere of the Earth over 1000 years ago.
    The appearance of E0102 is best explained by a model in which the ejecta is shaped like a cylinder that is being viewed almost exactly end-on. This model suggests that the explosion that created the E0102 remnant may itself have been strongly asymmetric, consistent with the rapid kicks given to neutron stars after supernova explosions. Another possibility is that the star exploded into a disk of material formed when material was shed from the equator of the pre-supernova red giant star. Such asymmetries have been observed in winds from lower mass red giants that form planetary nebulae.
    The remnant consists of an outer blast wave produced by the supernova, and an inner ring of cooler material. This inner ring is probably expanding ejecta from the explosion that is being heated by a shock wave travelling backwards into the ejecta.
    At its center is an isolated neutron star, the first such neutron star discovered outside the Milky Way.
    E0102.jpg
     
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    Dr. AMK Living with Hope

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    Black Holes Can Be Made on Earth, What If It Happened?
     
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    Phobos Is Hiding Secrets About Mars's Atmosphere | SciShow News
     
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    The Colorful Clouds of Rho Ophiuchi
    The most colorful region of the sky, that of Rho Ophiuchi, with Antares (brilliant yellow star below center), globular cluster M4 (to its right), Rho Ophiuchi (surrounded by bluish nebulosity, near top), and the whole region swarmed with bright and dark nebulae.
    150278225_1093277234419111_292758246479166901_n.jpg
     
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