Wind from a Black Hole

圖示提供 Credit: M. Weiss (CXC), NASA

Explanation:
Binary star system GRO J1655-40 consists of a relatively normal star
about twice as massive as the Sun co-orbiting with a black hole of about
seven solar masses. This striking artist's vision of the exotic binary
system helps visualize matter drawn from the normal star by gravity and
swirling toward the black hole. But it also includes a wind of material
escaping from the black hole's accretion disk. In fact, astronomers now
argue that Chandra Observatory x-ray data indicate a high-speed wind is
being driven from this system's disk by magnetic forces. Internal magnetic
fields also help drive material in the swirling disk into the black hole
itself. If you had x-ray eyes as good as Chandra's, you could find GRO
J1655-40 about 11,000 light-years away in the constellation Scorpius.

說明:
雙星系統GRO
J1655-40的成員包括一顆質量二倍太陽的正常恆星和一個有七倍太陽質量的黑洞。這張引人注目的畫家圖示，呈現了物質如何被重力從正常恆星吸引過來，
以及它們如何迴旋掉向黑洞。另外，畫像也呈現物質風如何從黑洞的吸積盤吹出。事實上天文學家認為錢卓拉觀測站的X射線數據顯示，高速風是在磁力的推送才從
吸積盤噴出的。另外，物質迴旋掉向黑洞也是內部磁場所造成的。如果你的X射線視覺如果和錢卓拉一樣好，你會看見位在天蝎座、離我們約有11,000光年的 GRO
J1655-40。

資料來源: Scientific American
Department of Physics, NCKU