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| From | jimp@specsol.spam.sux.com |
|---|---|
| Newsgroups | sci.physics |
| Subject | Re: Asteroid ripped apart to form star's glowing ring system |
| Date | 2015-11-11 23:36 +0000 |
| Organization | A noiseless patient Spider |
| Message-ID | <r10dhc-pno.ln1@mail.specsol.com> (permalink) |
| References | <7ICdnURbvKEoUd7LnZ2dnUU7-d2dnZ2d@giganews.com> |
Sam Wormley <swormley1@gmail.com> wrote: > Asteroid ripped apart to form star's glowing ring system Such uneeded violance; can't we all just get along? >> http://phys.org/news/2015-11-asteroid-ripped-star.html > >> The sight of an asteroid being ripped apart by a dead star and >> forming a glowing debris ring has been captured in an image for the >> first time. >> >> Comprised of dust particles and debris, the rings are formed by the >> star's gravity tearing apart asteroids that came too close. >> >> Gas produced by collisions among the debris within the ring is >> illuminated by ultraviolet rays from the star, causing it to emit a >> dark red glow which the researchers observed and turned into the >> image of the ring. >> >> Led by Christopher Manser of the University of Warwick's Astrophysics >> Group, the researchers investigated the remnants of planetary systems >> around white dwarf stars; in this instance, SDSS1228+1040. >> >> Whilst similar to the formation of Saturn's rings, the scale of the >> white dwarf and its debris is many times greater in size. Christopher >> Manser explains: >> >> "The diameter of the gap inside of the debris ring is 700,000 >> kilometres, approximately half the size of the Sun and the same space >> could fit both Saturn and its rings, which are only around 270,000 km >> across. At the same time, the white dwarf is seven times smaller than >> Saturn but weighs 2500 times more". >> >> While debris rings have been found at a handful of other white >> dwarfs, the imaging of SDSS1228+1040 gives an unprecedented insight >> into the structure of these systems. Yet more astronomy crap to the physics group but not to an astronomy group where it MIGHT actually be discussed. -- Jim Pennino
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Asteroid ripped apart to form star's glowing ring system Sam Wormley <swormley1@gmail.com> - 2015-11-11 17:18 -0600 Re: Asteroid ripped apart to form star's glowing ring system jimp@specsol.spam.sux.com - 2015-11-11 23:36 +0000
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