NASAのインスタグラム(nasa) - 11月26日 00時15分
This new sonification turns “light echoes” from a black hole into sound.
Black holes are notorious for not letting light (such as radio, visible and X-rays) escape from them. However, surrounding material can produce intense bursts of electromagnetic radiation. As they travel outward, these busts of light can bounce off clouds of gas and dust in space, like how light beams from car’s headlight will scatter off of fog.
Located about 7,800 light-years from Earth, this system that contains a black hole with a mass between five and 10 times the Sun’s, that pulls material from a companion star in orbit around it. This material is funneled into a disk that encircles the stellar-mass black hole.
This sonification translates X-ray data from both @NASAChandraXray and Swift into sound. To differentiate between the data from the two telescopes, Chandra data is represented by higher-frequency tones while the Swift data is lower. In addition to the X-rays, the image includes optical data from the Digitized Sky Survey that shows background stars. Each star in optical light triggers a musical note. The volume and pitch of the note are determined by the brightness of the star.
Video description: Circular bands of red are surrounded by a starry background. Blue bands highlight the inner and lower portions of the black hole system. During the sonification, the cursor moves outward from the center of the image in a circle. As it passes through the light echoes detected in X-rays (seen as concentric rings in blue by Chandra and red by Swift in the image), there are tick-like sounds and changes in volume to denote the detection of X-rays and the variations in brightness.
Credit: (X-ray) Chandra: NASA/CXC/U.Wisc-Madison/S. Heinz et al.; Swift: NASA/Swift/Univ. of Leicester/A. Beardmore; (Optical/IR) PanSTARRS; (Sonification) NASA/CXC/SAO/K.Arcand, SYSTEM Sounds (M. Russo, A. Santaguida)
#NASA #Chandra #BlackHole #BlackHoleFriday #Sonification #Space #Sounds
[BIHAKUEN]UVシールド(UVShield)
>> 飲む日焼け止め！「UVシールド」を購入する
1,502,072
4,812
2022/11/26
