An outflow powers the optical rise of the nearby, fast-evolving tidal disruption event AT2019qiz

@article{Nicholl2020AnOP,
  title={An outflow powers the optical rise of the nearby, fast-evolving tidal disruption event AT2019qiz},
  author={Matt Nicholl and Thomas Wevers and Samantha R. Oates and Kate D. Alexander and Giorgos Leloudas and Francesca Onori and Anders Jerkstrand and Sebastian Gomez and Sergio Campana and Iair Arcavi and Panos Charalampopoulos and Mariusz Gromadzki and Nada Ihanec and Peter G. Jonker and Andy Lawrence and Ilya Mandel and Steve Schulze and Philip Short and Jamie Burke and Curtis McCully and Daichi Hiramatsu and D. Andrew Howell and Craig Pellegrino and Harrison J. Abbot and J. P. Anderson and Edo Berger and Peter K. Blanchard and Giacomo Cannizzaro and T.-W. Chen and Michel Dennefeld and Llu{\'i}s Galbany and Santiago Gonz{\'a}lez-Gait{\'a}n and Griffin Hosseinzadeh and Cosimo Inserra and Ido Irani and P Kuin and Tom{\'a}s E. M{\"u}ller-Bravo and Jaime E. Pineda and Nicholas P. Ross and Rupak Roy and Steven J. Smartt and K. W. Smith and Brad E. Tucker and Łukasz Wyrzykowski and David R. Young},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2020}
}
At 66 Mpc, AT2019qiz is the closest optical tidal disruption event (TDE) to date, with a luminosity intermediate between the bulk of the population and the faint-and-fast event iPTF16fnl. Its proximity allowed a very early detection and triggering of multiwavelength and spectroscopic follow-up well before maximum light. The velocity dispersion of the host galaxy and fits to the TDE light curve indicate a black hole mass ≈106 M⊙, disrupting a star of ≈1 M⊙. By analysing our comprehensive UV… 

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References

SHOWING 1-10 OF 139 REFERENCES

Revisiting Optical Tidal Disruption Events with iPTF16axa

We report the discovery by the intermediate Palomar Transient Factory (iPTF) of a candidate tidal disruption event (TDE) iPTF16axa at z = 0.108 and present its broadband photometric and spectroscopic

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

A luminous ultraviolet–optical flare from the nuclear region of an inactive galaxy at a redshift of 0.1696 is reported and it is determined that the disrupted star was a helium-rich stellar core, modulo a factor dependent on the mass and radius of the star disrupted.

The tidal disruption event AT2017eqx: spectroscopic evolution from hydrogen rich to poor suggests an atmosphere and outflow

We present and analyse a new tidal disruption event (TDE), AT2017eqx at redshift z = 0.1089, discovered by Pan-STARRS and ATLAS. The position of the transient is consistent with the nucleus of its

The Ultraviolet Spectroscopic Evolution of the Low-Luminosity Tidal Disruption Event iPTF16fnl

We present the ultraviolet (UV) spectroscopic evolution of a tidal disruption event (TDE) for the first time. After the discovery of the nearby TDE iPTF16fnl, we obtained a series of observations

THE ULTRAVIOLET-BRIGHT, SLOWLY DECLINING TRANSIENT PS1-11af AS A PARTIAL TIDAL DISRUPTION EVENT

We present the Pan-STARRS1 discovery of the long-lived and blue transient PS1-11af, which was also detected by Galaxy Evolution Explorer with coordinated observations in the near-ultraviolet (NUV)

The Tidal Disruption Event AT 2018hyz II: Light-curve modelling of a partially disrupted star

AT 2018hyz (=ASASSN-18zj) is a tidal disruption event (TDE) located in the nucleus of a quiescent E+A galaxy at a redshift of $z = 0.04573$, first detected by the All-Sky Automated Survey for

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 cool

iPTF16fnl: A Faint and Fast Tidal Disruption Event in an E+A Galaxy

We present ground-based and Swift observations of iPTF16fnl, a likely tidal disruption event (TDE) discovered by the intermediate Palomar Transient Factory (iPTF) survey at 66.6 Mpc. The light curve

THE X-RAY THROUGH OPTICAL FLUXES AND LINE STRENGTHS OF TIDAL DISRUPTION EVENTS

We study the emission from tidal disruption events (TDEs) produced as radiation from black hole accretion propagates through an extended, optically thick envelope formed from stellar debris. We

Optical Flares from the Tidal Disruption of Stars by Massive Black Holes

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, releasing a flare of energy. In anticipation of upcoming transient
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