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Black holes are in sight - Nobel in physics 2020

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dc.contributor.author Anupama, G. C
dc.date.accessioned 2021-03-07T06:26:23Z
dc.date.available 2021-03-07T06:26:23Z
dc.date.issued 2020-10
dc.identifier.citation Physics News, Vol. 50, No. 4, pp. 22-27 en_US
dc.identifier.issn 0253 – 7583
dc.identifier.uri http://hdl.handle.net/2248/7686
dc.description Open Access © Indian Physics Association https://www.tifr.res.in/~ipa1970/news/2020/OctDec/07_G_Anupama.pdf en_US
dc.description.abstract The Nobel Prize in Physics 2020 has been awarded to three scientists. One half of the prize was awarded to Roger Penrose and the other half was jointly awarded to Reinhard Genzel and Andrea Ghez. Penrose’s discovery of the singularity theorem showed black hole formation to be a robust prediction of the general theory of relativity, with these objects forming naturally in overdense regions. On the other hand, painstaking, independent studies of the motion of stars over nearly three decades by Genzel and Ghez led to the discovery of a supermassive compact object at the centre of our Galaxy, that can only be a black hole. More recent observations have enabled detection of the relativistic precession of the orbit of the star closest to the Galactic centre, the presence of massive young stars close to the supermassive black hole, and intriguing objects enshrouded in gas and dust in the innermost regions of the nuclear stellar cluster. en_US
dc.language.iso en en_US
dc.publisher Indian Physics Association en_US
dc.subject Nobel Prize in Physics en_US
dc.subject Black holes en_US
dc.subject Roger Penrose en_US
dc.subject Reinhard Genzel en_US
dc.subject Andrea Ghez en_US
dc.title Black holes are in sight - Nobel in physics 2020 en_US
dc.type Article en_US

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