एक्स-रे और रेडियो observation of आकाशगंगा system Abell 2384 reveals collision of two आकाशगंगा clusters that travelled through each other forming a binodal system with a bridge of superhot gas between two cluster lobes and a bend in the bridge due to powerful jet of hot gas shooting away from a super heavy ब्लैक होल in the centre of a आकाशगंगा क्लस्टर में.
To put the whole thing in a perspective, the earth along with other ग्रहों and their satellites are part of the ‘stellar system’ of a सितारा called sun. Each सितारा may have such a system comprising of bodies परिक्रमा them. Large number of सितारों bound together by gravity form a celestial entity called आकाशगंगा. For example, our solar system is part of a आकाशगंगा called ‘milky way’ which alone has about 100 thousand million सितारों, each with their own stellar system. Hundreds of galaxies bound together by gravitational field form what we call ‘आकाशगंगा cluster’.
'आकाशगंगा clusters’ are the largest objects in the ब्रम्हांड, each comprising of hundreds of galaxies together with vast amount of super-hot gas cloud and large amount of dark matter. The interspersed superhot (30 – 100 million degrees Celsius) gas cloud is invisible to optical telescope but emits x-rays observable by the x-ray telescope. The dark matter does not emit, absorb or reflect any electro-magnetic radiation hence is not observable by any kind of telescope, but only by their gravitational interaction with the ‘white’ matter.
Several hundred million years ago, at a distance of about 1.2 billion light years away from us, two आकाशगंगा clusters collided and travelled through each other forming a merger-like system called Abell 2384 or A2384. Located in the constellation capricornus (one of the constellations of Zodiac and is known as ‘goat horn’), Abell 2384 is about 17 million light years across in size with two unequal cluster lobes connected by a three million light-year long bridge of hot gas.
खगोलविदों इसका विस्तृत समग्र दृष्टिकोण प्राप्त किया आकाशगंगा क्लस्टर सिस्टम, एबेल एक्सएनयूएमएक्स नीचे उल्लिखित तीन अलग-अलग प्रकार के स्रोतों से बहु-तरंग दैर्ध्य डेटा का उपयोग करना:
1. नीला: चंद्रा एक्स-रे वेधशाला से एक्स-रे डेटा (एक्स-रे अंतरिक्ष telescope launched by नासा in 1999) and XMM-Newton (X-ray अंतरिक्ष observatory launched by the European Space Agency in 1999).
2. मैजेंटा: रेडियो data from provided by Giant Metre-wave Radio Telescope (GMRT), India.
3. Yellow: Optical data from Digitized Sky Survey (DSS) by अंतरिक्ष Telescope Science Institute.
The x-ray data obtained from the अंतरिक्ष observatories revealed high-density region extended between the two cluster heads corresponding to the unique hot gas bridge. Radio observation indicated x-ray-radio interaction at the cluster outskirts indicative of a peculiar radio galaxy. The conclusion is that of a powerful jet shooting away from a supermassive काला छेद in the centre of a galaxy within the galaxy cluster leading to bend in the shape of the gas bridge.
विकास और पाठ्यक्रम के बारे में विकासशील ज्ञान आधार के लिए यह अध्ययन महत्वपूर्ण है आकाशगंगा का विलय clusters in the ब्रम्हांड. Simulation suggests that the north and south clusters in the system Abell 2384 will eventually merge together with each other.
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सूत्रों का कहना है:
1. यूरोप में संयुक्त अंतरिक्ष (यूरोपीय अंतरिक्ष एजेंसी) 2020। दो आकाशगंगा समूहों के बीच एक मुड़ा हुआ पुल। पोस्ट 11 मई 2020। ऑनलाइन उपलब्ध है http://www.esa.int/Science_Exploration/Space_Science/A_bent_bridge_between_two_galaxy_clusters 13 मई 2020 को एक्सेस किया गया।
2. चंद्रा एक्स-रे वेधशाला (नासा) 2020। एबेल 2384: दो आकाशगंगा समूहों के बीच पुल को मोड़ना। रिलीज की तारीख: 11 मई, 2020। ऑनलाइन उपलब्ध है https://chandra.si.edu/photo/2020/a2384/index.html 13 मई 2020 को एक्सेस किया गया।
3. पारेख वी., लगाना टीएफ, एट अल।, 2020। ए2384 गैलेक्सी क्लस्टर में हॉट एक्स-रे ब्रिज के साथ एफआर I इंटरैक्शन का एक दुर्लभ मामला। एमएनआरएएस 491, 2605-2616। डीओआई: https://doi.org/10.1093/mnras/stz3067
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