File:Data Sonification- Black Hole at the Center of the Perseus Galaxy Cluster (X-ray).webm
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[edit]DescriptionData Sonification- Black Hole at the Center of the Perseus Galaxy Cluster (X-ray).webm |
English: Since 2003, the black hole at the center of the Perseus galaxy cluster has been associated with sound. This is because astronomers discovered that pressure waves sent out by the black hole caused ripples in the cluster's hot gas that could be translated into a note — one that humans cannot hear some 57 octaves below middle C. Now a new sonification brings more notes to this black hole sound machine. This new sonification — that is, the translation of astronomical data into sound — is being released for NASA's Black Hole Week this year.
In some ways, this sonification is unlike any other done before (1, 2, 3, 4) because it revisits the actual sound waves discovered in data from NASA's Chandra X-ray Observatory. The popular misconception that there is no sound in space originates with the fact that most of space is essentially a vacuum, providing no medium for sound waves to propagate through. A galaxy cluster, on the other hand, has copious amounts of gas that envelop the hundreds or even thousands of galaxies within it, providing a medium for the sound waves to travel. In this new sonification of Perseus, the sound waves astronomers previously identified were extracted and made audible for the first time. The sound waves were extracted in radial directions, that is, outwards from the center. The signals were then resynthesized into the range of human hearing by scaling them upward by 57 and 58 octaves above their true pitch. Another way to put this is that they are being heard 144 quadrillion and 288 quadrillion times higher than their original frequency. (A quadrillion is 1,000,000,000,000,000.) The radar-like scan around the image allows you to hear waves emitted in different directions. In the visual image of these data, blue and purple both show X-ray data captured by Chandra. Credit: NASA/CXC/SAO/K.Arcand, SYSTEM Sounds (M. Russo, A. Santaguida).Français : Depuis 2003, le trou noir au centre de l'amas de galaxies de Persée est associé au son. En effet, les astronomes ont découvert que les ondes de pression émises par le trou noir provoquaient des ondulations dans le gaz chaud de l'amas qui pourraient être traduites en une note - une note que les humains ne peuvent pas entendre, environ 57 octaves en dessous du do médian. Maintenant, une nouvelle sonification apporte plus de notes à ce trou noir machine à son. Cette nouvelle sonification - c'est-à-dire la traduction de données astronomiques en sons - est publiée cette année pour la Semaine du trou noir de la NASA.
À certains égards, cette sonification ne ressemble à aucune autre effectuée auparavant (1, 2, 3, 4) car elle revisite les ondes sonores réelles découvertes dans les données de l'observatoire à rayons X Chandra de la NASA. L'idée fausse populaire selon laquelle il n'y a pas de son dans l'espace provient du fait que la majeure partie de l'espace est essentiellement un vide, ne fournissant aucun moyen pour que les ondes sonores se propagent. Un amas de galaxies, en revanche, contient de grandes quantités de gaz qui enveloppent les centaines, voire les milliers de galaxies qu'il contient, fournissant un moyen pour les ondes sonores de se déplacer. Dans cette nouvelle sonification de Persée, les ondes sonores précédemment identifiées par les astronomes ont été extraites et rendues audibles pour la première fois. Les ondes sonores ont été extraites dans des directions radiales, c'est-à-dire vers l'extérieur à partir du centre. Les signaux ont ensuite été resynthétisés dans la gamme de l'audition humaine en les mettant à l'échelle vers le haut de 57 et 58 octaves au-dessus de leur hauteur réelle. Une autre façon de dire cela est qu'ils sont entendus 144 quadrillions et 288 quadrillions de fois plus élevés que leur fréquence d'origine. (Un quadrillion est égal à 1 000 000 000 000 000.) Le balayage de type radar autour de l'image vous permet d'entendre les ondes émises dans différentes directions. Dans l'image visuelle de ces données, le bleu et le violet montrent tous deux des données de rayons X capturées par Chandra. Crédit : NASA/CXC/SAO/K.Arcand, SYSTEM Sounds (M. Russo, A. Santaguida).Українська: З 2003 року чорну діру в центрі скупчення галактик Персей асоціюють зі звуком. Це пов’язано з тим, що астрономи виявили, що хвилі тиску, які посилає чорна діра, викликають брижі в гарячому газі скупчення, які можна перевести в ноту, яку люди не можуть почути, приблизно на 57 октав нижче «середнього До».
У цьому запису звукові хвилі Персея, які раніше ідентифікували астрономи, були вилучені та вперше зроблені чутними для вуха людини. Звукові хвилі витягувалися в радіальних напрямках, тобто назовні від центру. Потім сигнали були повторно синтезовані в діапазон людського слуху, масштабуючи їх на 57 і 58 октав вище їх справжньої висоти. Радарне сканування навколо зображення дозволяє почути хвилі, випромінювані в різних напрямках. На візуальному зображенні цих даних синім і фіолетовим кольором показано рентгенівські дані. |
Date | |
Source |
https://www.nasa.gov/mission_pages/chandra/news/new-nasa-black-hole-sonifications-with-a-remix.html YouTube: Data Sonification: Black Hole at the Center of the Perseus Galaxy Cluster (X-ray) – View/save archived versions on archive.org and archive.today |
Author | NASA's Marshall Space Flight Center |
Assessment
[edit]This file was selected as the media of the day for 17 September 2022. It was captioned as follows:
English: Since 2003, the black hole at the center of the Perseus galaxy cluster has been associated with sound. This is because astronomers discovered that pressure waves sent out by the black hole caused ripples in the cluster's hot gas that could be translated into a note — one that humans cannot hear some 57 octaves below middle C. Now a new sonification brings more notes to this black hole sound machine. This new sonification — that is, the translation of astronomical data into sound — is being released for NASA's Black Hole Week this year.
In some ways, this sonification is unlike any other done before (1, 2, 3, 4) because it revisits the actual sound waves discovered in data from NASA's Chandra X-ray Observatory. The popular misconception that there is no sound in space originates with the fact that most of space is essentially a vacuum, providing no medium for sound waves to propagate through. A galaxy cluster, on the other hand, has copious amounts of gas that envelop the hundreds or even thousands of galaxies within it, providing a medium for the sound waves to travel. In this new sonification of Perseus, the sound waves astronomers previously identified were extracted and made audible for the first time. The sound waves were extracted in radial directions, that is, outwards from the center. The signals were then resynthesized into the range of human hearing by scaling them upward by 57 and 58 octaves above their true pitch. Another way to put this is that they are being heard 144 quadrillion and 288 quadrillion times higher than their original frequency. (A quadrillion is 1,000,000,000,000,000.) The radar-like scan around the image allows you to hear waves emitted in different directions. In the visual image of these data, blue and purple both show X-ray data captured by Chandra. Credit: NASA/CXC/SAO/K.Arcand, SYSTEM Sounds (M. Russo, A. Santaguida).Other languages
Čeština: Příklad použití výpočetního postupu tzv. sonifikace v astrofyzice, tedy převedení změn v intenzitě rentgenova záření (X-paprsků), vyzařovaných černou dírou v centru kupy galaxií v Perseovi na zvukové vlnění. English: Since 2003, the black hole at the center of the Perseus galaxy cluster has been associated with sound. This is because astronomers discovered that pressure waves sent out by the black hole caused ripples in the cluster's hot gas that could be translated into a note — one that humans cannot hear some 57 octaves below middle C. Now a new sonification brings more notes to this black hole sound machine. This new sonification — that is, the translation of astronomical data into sound — is being released for NASA's Black Hole Week this year.
In some ways, this sonification is unlike any other done before (1, 2, 3, 4) because it revisits the actual sound waves discovered in data from NASA's Chandra X-ray Observatory. The popular misconception that there is no sound in space originates with the fact that most of space is essentially a vacuum, providing no medium for sound waves to propagate through. A galaxy cluster, on the other hand, has copious amounts of gas that envelop the hundreds or even thousands of galaxies within it, providing a medium for the sound waves to travel. In this new sonification of Perseus, the sound waves astronomers previously identified were extracted and made audible for the first time. The sound waves were extracted in radial directions, that is, outwards from the center. The signals were then resynthesized into the range of human hearing by scaling them upward by 57 and 58 octaves above their true pitch. Another way to put this is that they are being heard 144 quadrillion and 288 quadrillion times higher than their original frequency. (A quadrillion is 1,000,000,000,000,000.) The radar-like scan around the image allows you to hear waves emitted in different directions. In the visual image of these data, blue and purple both show X-ray data captured by Chandra. Credit: NASA/CXC/SAO/K.Arcand, SYSTEM Sounds (M. Russo, A. Santaguida).Français : Depuis 2003, le trou noir au centre de l'amas de galaxies de Persée est associé au son. En effet, les astronomes ont découvert que les ondes de pression émises par le trou noir provoquaient des ondulations dans le gaz chaud de l'amas qui pourraient être traduites en une note - une note que les humains ne peuvent pas entendre, environ 57 octaves en dessous du do médian. Maintenant, une nouvelle sonification apporte plus de notes à ce trou noir machine à son. Cette nouvelle sonification - c'est-à-dire la traduction de données astronomiques en sons - est publiée cette année pour la Semaine du trou noir de la NASA.
À certains égards, cette sonification ne ressemble à aucune autre effectuée auparavant (1, 2, 3, 4) car elle revisite les ondes sonores réelles découvertes dans les données de l'observatoire à rayons X Chandra de la NASA. L'idée fausse populaire selon laquelle il n'y a pas de son dans l'espace provient du fait que la majeure partie de l'espace est essentiellement un vide, ne fournissant aucun moyen pour que les ondes sonores se propagent. Un amas de galaxies, en revanche, contient de grandes quantités de gaz qui enveloppent les centaines, voire les milliers de galaxies qu'il contient, fournissant un moyen pour les ondes sonores de se déplacer. Dans cette nouvelle sonification de Persée, les ondes sonores précédemment identifiées par les astronomes ont été extraites et rendues audibles pour la première fois. Les ondes sonores ont été extraites dans des directions radiales, c'est-à-dire vers l'extérieur à partir du centre. Les signaux ont ensuite été resynthétisés dans la gamme de l'audition humaine en les mettant à l'échelle vers le haut de 57 et 58 octaves au-dessus de leur hauteur réelle. Une autre façon de dire cela est qu'ils sont entendus 144 billiards et 288 billiards de fois plus élevés que leur fréquence d'origine. (Un billiard est égal à 1 000 000 000 000 000.) Le balayage de type radar autour de l'image vous permet d'entendre les ondes émises dans différentes directions. Dans l'image visuelle de ces données, le bleu et le violet montrent tous deux des données de rayons X capturées par Chandra. Crédit : NASA/CXC/SAO/K.Arcand, SYSTEM Sounds (M. Russo, A. Santaguida).Эрзянь: 2003 иестэ раужо варясь Персей галактика пурнавкссо сюлмави гайть марто. Анстромтнэ муйсть нота — C куншкань 57-це октавань, кона амаряви ломанень. Те невтемась теезь-анокстазь NASA-нь Раужо варянь Тарготнень (Black Hole Week). Українська: З 2003 року чорну діру в центрі скупчення галактик Персей асоціюють зі звуком. Це пов’язано з тим, що астрономи виявили, що хвилі тиску, які посилає чорна діра, викликають брижі в гарячому газі скупчення, які можна перевести в ноту, яку люди не можуть почути, приблизно на 57 октав нижче «середнього До».
У цьому запису звукові хвилі Персея, які раніше ідентифікували астрономи, були вилучені та вперше зроблені чутними для вуха людини. Звукові хвилі витягувалися в радіальних напрямках, тобто назовні від центру. Потім сигнали були повторно синтезовані в діапазон людського слуху, масштабуючи їх на 57 і 58 октав вище їх справжньої висоти. Радарне сканування навколо зображення дозволяє почути хвилі, випромінювані в різних напрямках. На візуальному зображенні цих даних синім і фіолетовим кольором показано рентгенівські дані. |
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