Fail:Artist’s Impression of a Baby Star Still Surrounded by a Protoplanetary Disc.jpg

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English: Artist’s impression of a baby star still surrounded by a protoplanetary disc in which planets are forming. Using ESO’s very successful HARPS spectrograph, a team of astronomers has found that Sun-like stars which host planets have destroyed their lithium much more efficiently than planet-free stars. This finding does not only shed light on the low levels of this chemical element in the Sun, solving a long-standing mystery, but also provides astronomers with a very efficient way to pick out the stars most likely to host planets. It is not clear what causes the lithium to be destroyed. The general idea is that the planets or the presence of the protoplanetary disc disturb the interior of the star, bringing the lithium deeper down into the star than usual, into regions where the temperature is so hot that it is destroyed.
Tarikh
Sumber ESO
Pengarang ESO/L. Calçada

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Their website states: "Unless specifically noted, the images, videos, and music distributed on the public ESO website, along with the texts of press releases, announcements, pictures of the week, blog posts and captions, are licensed under a Creative Commons Attribution 4.0 International License, and may on a non-exclusive basis be reproduced without fee provided the credit is clear and visible."
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tarikh penubuhan

12 November 2009

MIME type Inggeris

image/jpeg

hasil tambah semak

7bc80e11b5ecf0f0c171bf51c53ceed8ee11e638

kaedah penentuan: SHA-1 Inggeris

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1,704,383 bait

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semasa10:16, 12 November 2009Gambar kenit bagi versi pada 10:16, 12 November 20093,000 × 2,000 (1.63 MB)Originalwana{{Information |Description={{en|1=Artist’s impression of a baby star still surrounded by a protoplanetary disc in which planets are forming. Using ESO’s very successful HARPS spectrograph, a team of astronomers has found that

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