An ultraviolet–optical flare from the tidal disruption of a helium-rich stellar core

@article{Gezari2012AnUF,
  title={An ultraviolet–optical flare from the tidal disruption of a helium-rich stellar core},
  author={Suvi Gezari and Ryan Chornock and Armin Rest and Mark E. Huber and Karl G. Forster and Edo Berger and Peter J. Challis and James D. Neill and D. Chris Martin and Timothy Heckman and Andrew Lawrence and C. Norman and Gautham Narayan and Ryan J. Foley and G. H. Marion and Dan Scolnic and Laura Chomiuk and Alicia Margarita Soderberg and K. W. Smith and R. P. Kirshner and Adam G. Riess and Steven J. Smartt and Christopher W. Stubbs and John L. Tonry and William Michael Wood-Vasey and William Stanley Burgett and K. C. Chambers and T. Grav and James N. Heasley and N. Kaiser and Rolf Peter Kudritzki and Eugene. A. Magnier and Jeffrey S. Morgan and Paul A. Price},
  journal={Nature},
  year={2012},
  volume={485},
  pages={217-220}
}
The flare of radiation from the tidal disruption and accretion of a star can be used as a marker for supermassive black holes that otherwise lie dormant and undetected in the centres of distant galaxies. Previous candidate flares have had declining light curves in good agreement with expectations, but with poor constraints on the time of disruption and the type of star disrupted, because the rising emission was not observed. Recently, two ‘relativistic’ candidate tidal disruption events were… Expand
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A unique signature for the presence of massive black holes in very dense stellar regions is occasional giant-amplitude outbursts of multi-wavelength radiation from tidal disruption and subsequentExpand
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TLDR
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The transient Swift J1644+57 is believed to have been produced by an unlucky star wandering too close to a supermassive black hole (BH) leading to a tidal disruption event. This unusual flareExpand
Ultraviolet and optical observations of tidal disruption events
Tidal disruption events are expected to produce a luminous flare of radiation from fallback accretion of tidally disrupted stellar debris onto the central supermassive black hole. The firstExpand
A bright year for tidal disruptions
When a star is tidally disrupted by a supermassive black hole (BH), roughly half of its mass falls back to the BH at super-Eddington rates. Being tenuously gravitationally bound and unable to coolExpand
Radio follow-up observations of stellar tidal disruption flares: Constraints on off-axis jets
Observations of active galactic nuclei (AGN) and X-ray binaries have shown that relativistic jets are ubiquitous when compact objects accrete. One could therefore anticipate the launch of a jet afterExpand
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A star that wanders too close to a massive black hole (BH) is shredded by the BH’s tidal gravity. Stellar gas falls back to the BH at a rate initially exceeding the Eddington rate, releasing a flareExpand
Multiband light curves of tidal disruption events
Unambiguous detection of the tidal disruption of a star would allow an assessment of the presence and masses of supermassive black holes in quiescent galaxies. It would also provide invaluableExpand
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A dormant supermassive black hole lurking in the center of a galaxy will be revealed when a star passes close enough to be torn apart by tidal forces, and a flare of electromagnetic radiation isExpand
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TLDR
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TLDR
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TLDR
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TLDR
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We show that the disruption of a star by a ~106 M☉ black hole in a galactic nucleus could under favorable circumstances produce an optically thick envelope that radiates with a thermal spectrum atExpand
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