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This blog is about cosmological phenomena .we discuss about recent astrophysical events and science behind it

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V616-MONOCEROTIS —NEAREST BLACKHOLE TO THE EARTH

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V616 MONOCEROTIS —  THE  NEAREST  BLACK  HOLE  TO  EARTH MILKY WAY  has millions of black hole. Our galaxy has super massive black hole at it's center  SAGGARITUS A which is too much powerful, but it is too far from earth.Black holes are destroyer. They engulf everything which is full of matter. Then question arises is there any danger to earth from any black hole?  As per observations V616 MONOCEROTIS is the closest known black hole from earth.  It is also known as A0620-00. This system is binary star in MONOCEROUS constellation.  This constellation only contains two objects.  SIZE   = APPROX (LONDON CITY)  DISTANCE FROM EARTH -   3457  light years MASS OF A0620-00 =   6 TO 9  TIMES OF SUN The black hole in A0620-00 pulls matter from the K-type star into an accretion disk.  The accretion disk emits significant amounts of visible light and X-rays. Because the K-type star has been pulled into an  elliptical  shape, the amount of surface area visible, and th
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HD140283

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THE STAR BAFFLED SCIENTISTS WHICH LOOKS OLDER THAN OUR UNIVERSE  The age of our universe is 13.8 billion years. Scientists found a star who baffled them by it's age. Scientists have discovered star whose age is 14.5billion years. Now question is can our universe have stars older than itself?  This is condrum that universe is younger than its some stars.  HD 140283 : HD 140283, informally nicknamed the Methuselah star, is a metal-poor subgiant star about 200 light years away from the Earth in the constellation Libra, specifically toward Ophiuchus. Its apparent magnitude is 7.205.   It's a riddle of cosmic proportions: how can the universe contain stars older than itself?" physicist Robert Matthews  wrote for  The National ,  an English-language newspaper published in UAE. It could spark on new scientific revolution.  Dr Matthews, a member of the UK's Royal Astronomical Society, said recent measurements of the cosmic background radiation left over a
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PULSARS

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PULSARS PULSARS are highly magnetized neutron star which is rotating at high speed . It is White dwarf or neutron star which emits electromagnetic radiation. Pulsars have strong magnetic field which funnels jet out particles in form of radiation. This radiation can be detected only if radiation points towards earth. This particles create a beam of light. Three distinct classes of pulsars are currently known , according to the source of the power of the electromagnetic radiation: 1. Rotation-powered pulsars , where the loss of rotational energy of the star provides the power, 2.Acceration power pulsars where gravitational potential energy of accerated matter is power source.  3.Magnstars where decay of electromagnetic field of pulsar provide power.  APPLICATIONS:                                     pulsar are used to find unobservable celestial object known as neutron star which rotates near to speed of light.   Milliseconds pulsar allowed to test        G
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