2019/05/18

Presentation in the Science Circle May 18,2019. First Image of a supermassive Black Hole


First Image of a supermassive Black Hole
 From abstract in website
“Staring into the abyss: the first image of a supermassive black hole”
On April 10 of this year, the Event Horizon Telescope team released a radio image of the black hole at the core of the galaxy M87. The image is a ring of light, brighter on one side. What does it mean? What does it tell us about the black hole? Why are people so excited about it?
In this talk, I’ll discuss what black holes we know are out there, including supermassive black holes like this one. I’ll talk what it really means to take a picture of something that no light escapes from, and I’ll talk about how the image we see is just as much affected by the gravity of the black hole as it is by the plasma that actually emitted the light we’re looking at.
 By Rob Knop


Here is the link to his voice.
 Rob Knop : Physics & Astronomy(website)












  In talking about resolution, Rob is setting us up for how the Event Horizon Telescope, with its eight telescopes synchronized across five continents, effectively creates an aperture the size of the whole Earth! So it has a resolution high enough to see details around a supermassive black hole in M87!














Related links (Japanese)
Related links (English)

2 件のコメント:

  1. ブラックホールを初めて画像としてとらえたというニュースでしたね。

    世界中の望遠鏡を連携してデータ収集し解析して出来た快挙でしょう。

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    返信
    1. 丁寧に解説していただいたので
      理解が深まりました。全部英語
      なので、全身耳にしていないと
      聴き取れません。

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