Tag: white dwarf

Exploring the Cosmic Phenomena of Supernovas and ISRO’s XPOSAT: A Stellar Journey
12Jan By adminNo Comments
Technology

Exploring the Cosmic Phenomena of Supernovas and ISRO’s XPOSAT: A Stellar Journey

[ad_1] “The nitrogen in our DNA, the calcium in our teeth, the iron in our blood, the carbon in our apple pies were made in the interiors of collapsing stars. We are made of starstuff.”- Carl Sagan This profound statement by Carl Sagan beautifully captures the essence of our cosmic connection. The stars, those twinkling specks in the night sky, are not just distant suns but the very vessels where the recipe of life was cooked. Among the most dramatic events in this cosmic saga are supernovas, stellar explosions of unimaginable scale and power, which seed the universe with the building blocks of planets and life. A supernova occurs when a star reaches the end of its life cycle. The star's core, having exhausted its nuclear fuel, can no longer support the outward pressure against the forc...
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This 2-faced white dwarf star defies astrophysical norms
22Jul By adminNo Comments
Technology

This 2-faced white dwarf star defies astrophysical norms

[ad_1] Behold Janus, a celestial enigma that defies conventional norms! Unlike the figurative phrase denoting two-facedness, this white dwarf star embodies the very essence of duality, quite literally. Drawing inspiration from the ancient Roman god, Janus, with one face gazing forward and the other backward, symbolizing transitions, this peculiar stellar remnant has earned its fitting moniker. Scientists have been captivated by the unique composition of Janus, as it bears an extraordinary feature - hydrogen dominates one side, while helium graces the other.The magnetic field's role in an unconventional StarJanus, located about 1,300 light years from Earth in the direction of the Cygnus constellation, is fairly massive for a white dwarf. Its mass is 20% larger than that of our sun, compr...
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In a first, NASA’s Hubble Telescope directly measures mass of a lone white dwarf
3Feb By adminNo Comments
Technology

In a first, NASA’s Hubble Telescope directly measures mass of a lone white dwarf

[ad_1] NASA's Hubble Space Telescope has added one more first in its list. Astronomers using the Hubble Telescope have for the first time directly measured the mass of a single, isolated white dwarf – the surviving core of a burned-out, Sun-like star. Researchers found that the white dwarf is 56 percent the mass of the Sun. This agrees with earlier theoretical predictions of the white dwarf's mass and corroborates current theories of how white dwarfs evolve as the end product of a typical star's evolution. The unique observation yields insights into theories of the structure and composition of white dwarfs, NASA said in a report.Until now, previous white dwarf mass measurements have been gleaned from observing white dwarfs in binary star systems. By watching the motion of two co-orbiti...
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Terrifying! This is how our Earth, the Solar System will DIE; Tech reveals when and how its death will occur
17Sep By adminNo Comments
Technology

Terrifying! This is how our Earth, the Solar System will DIE; Tech reveals when and how its death will occur

[ad_1] Our solar system is set to die. But how and when will it happen? Scientists have deployed the tech and the results are in. The laws of thermodynamics have made it very clear that everything in the universe will one day die. And neither us, our planet, the Sun or the solar system are an exception to it. It is very hard to imagine that the solar system, which has been here for 4.5 billion years, will one day collapse. It is a terrifying thought but according to scientists, it is inevitable. Advanced technology has been deployed and extremely expensive instruments have been used to do radioactive dating on other objects which are believed to be of the same age as the Sun. This data is then added to prediction models, a so...
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