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A very luminous jet...
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Andreoni, Igor
(författare)
A very luminous jet from the disruption of a star by a massive black hole
- Artikel/kapitelEngelska2022
Förlag, utgivningsår, omfång ...
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2022-11-30
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Springer Science and Business Media LLC,2022
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printrdacarrier
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LIBRIS-ID:oai:DiVA.org:su-215888
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https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-215888URI
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https://doi.org/10.1038/s41586-022-05465-8DOI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:art swepub-publicationtype
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Tidal disruption events (TDEs) are bursts of electromagnetic energy that are released when supermassive black holes at the centres of galaxies violently disrupt a star that passes too close1. TDEs provide a window through which to study accretion onto supermassive black holes; in some rare cases, this accretion leads to launching of a relativistic jet2,3,4,5,6,7,8,9, but the necessary conditions are not fully understood. The best-studied jetted TDE so far is Swift J1644+57, which was discovered in γ-rays, but was too obscured by dust to be seen at optical wavelengths. Here we report the optical detection of AT2022cmc, a rapidly fading source at cosmological distance (redshift z = 1.19325) the unique light curve of which transitioned into a luminous plateau within days. Observations of a bright counterpart at other wavelengths, including X-ray, submillimetre and radio, supports the interpretation of AT2022cmc as a jetted TDE containing a synchrotron ‘afterglow’, probably launched by a supermassive black hole with spin greater than approximately 0.3. Using four years of Zwicky Transient Facility10 survey data, we calculate a rate of 0.02+0.04−0.01 Gpc−3 yr−1 for on-axis jetted TDEs on the basis of the luminous, fast-fading red component, thus providing a measurement complementary to the rates derived from X-ray and radio observations11. Correcting for the beaming angle effects, this rate confirms that approximately 1 per cent of TDEs have relativistic jets. Optical surveys can use AT2022cmc as a prototype to unveil a population of jetted TDEs.
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Biuppslag (personer, institutioner, konferenser, titlar ...)
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Sagués Carracedo, AnaStockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)(Swepub:su)anca9835
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Schulze, SteveStockholms universitet,Oskar Klein-centrum för kosmopartikelfysik (OKC),Fysikum(Swepub:su)stsc6413
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Sollerman, Jesper,1968-Stockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC)(Swepub:su)solle
(författare)
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Bulla, MattiaStockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC)(Swepub:su)mbull
(författare)
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Kool, Erik C.Stockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC)(Swepub:su)erko1670
(författare)
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Zhang, Jielai
(författare)
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Stockholms universitetFysikum
(creator_code:org_t)
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Ingår i:Nature: Springer Science and Business Media LLC612:7940, s. 430-4340028-08361476-4687
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