ハッブルが最も遠い星を発見

explorer
PR

ハッブル宇宙望遠鏡(Hubble Space Telescope)が最も遠い星の画像の撮影に成功し、公開。

重力レンズという手法で、90億光年離れている星の撮影に成功した。

この星の名前は「MACS J1149+2223 Lensed Star 1」という名称だそうです。

その写真画像はこちらです。

宇宙望遠鏡科学研究所(Space Telescope Science Institute)公式インスタグラム(Instagram)アカウント。

Icarus, whose official name is MACS J1149+2223 Lensed Star 1, is the farthest individual star ever seen. It is only visible because it is being magnified by the gravity of a massive galaxy cluster, located about 5 billion light-years from Earth. This cluster, called MACS J1149+2223 and shown at left, sits between the Earth and the galaxy that contains the distant star. The team had been using Hubble to monitor a supernova in the far-off spiral galaxy when, in 2016, they spotted a point of light near the supernova that began to brighten. Even though the object subsequently became three times brighter in one month, the colors of the light coming from the object did not change. Analysis of these colors showed it was a blue supergiant star in the background galaxy whose magnification grew for several weeks due to an intervening object, probably a star, in the galaxy cluster. The panels at the right show the view in 2011, without Icarus visible, compared with the star’s brightening in 2016. Credit: NASA, ESA, and P. Kelly (University of Minnesota).

Space Telescope Science Inst.さん(@space_telescopes)がシェアした投稿 –

宇宙望遠鏡科学研究所(Space Telescope Science Institute)からのハッブル宇宙望遠鏡(Hubble Space Telescope)公式ツイッター(Twitter)アカウント。

ちなみに動画も公開。
Video 1, simulación artística de Ícaro (MACS J1149+2223 Lensed Star 1) IACvideos

いろいろな宇宙望遠鏡(Space Telescope)から目が離せない。ブラックホール(black hole)の情報も増えてきたように感じる。