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AT2018cqh is a unique tidal disruption event (TDE) candidate discovered in a dwarf galaxy. Both the light curve fitting and galaxy scaling relationships suggest a central black hole mass in the range of 5.9<logM_BH/M_sun<6.4. A delayed…

高能天体物理现象 · 物理学 2024-01-12 Fabao Zhang , Xinwen Shu , Lei Yang , Luming Sun , Zhumao Zhang , Yibo Wang , Guobin Mou , Xue-Guang Zhang , Tianyao Zhou , Fangkun Peng

We argue that the `changing look' AGN recently reported by LaMassa et al. could be a luminous flare produced by the tidal disruption of a super-solar mass star passing just a few gravitational radii outside the event horizon of a $\sim 10^8…

高能天体物理现象 · 物理学 2015-08-06 A. Merloni , T. Dwelly , M. Salvato , A. Georgakakis , J. Greiner , M. Krumpe , K. Nandra , G. Ponti , A. Rau

The sporadic accretion following the tidal disruption of a star by a super-massive black hole (TDE) leads to a bright UV and soft X-ray flare in the galactic nucleus. The gas and dust surrounding the black hole responses to such a flare…

高能天体物理现象 · 物理学 2016-12-02 Liming Dou , Ting-gui Wang , Ning Jiang , Chenwei Yang , Jianwei Lyu , Hongyan Zhou

A late (t $\sim$ 1,500 days) multi-wavelength (UV, optical, IR, and X-ray) flare was found in PS1-10adi, a tidal disruption event (TDE) candidate that took place in an active galactic nucleus (AGN). TDEs usually involve super-Eddington…

高能天体物理现象 · 物理学 2023-09-08 Jialun Zhuang , Rong-Feng Shen

We present late-time observations of the tidal disruption event candidate PS1-10jh. UV and optical imaging with HST/WFC3 localize the transient to be coincident with the host galaxy nucleus to an accuracy of 0.023 arcsec, corresponding to…

高能天体物理现象 · 物理学 2015-12-09 S. Gezari , R. Chornock , A. Lawrence , A. Rest , D. O. Jones , E. Berger , P. M. Challis , G. Narayan

While the vast majority of Tidal Disruption Events (TDEs) has been identified by wide-field sky surveys in the optical and X-ray bands, recent studies indicate that a considerable fraction of TDEs may be dust obscured, and thus…

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…

Tidal disruption events (TDEs) occur when a star orbiting a massive black hole is sufficiently close to be tidally ripped apart by the black hole. AT 2022cmc is the first relativistic TDE that was observed (and discovered) as an optically…

高能天体物理现象 · 物理学 2023-02-08 Aleksandar Cikota , Giorgos Leloudas , Mattia Bulla , Lixin Dai , Justyn Maund , Igor Andreoni

The tidal disruption event (TDE) AT2018fyk has unusual X-ray, UV, and optical light curves that decay over the first $\sim$600d, rebrighten, and decay again around 1200d. We explain this behavior as a one-off TDE associated with a massive…

高能天体物理现象 · 物理学 2024-07-30 S. Wen , P. G. Jonker , A. J. Levan , D. Li , N. C. Stone , A. I. Zabludoff , Z. Cao , T. Wevers , D. R. Pasham , C. Lewin , E. Kara

Tidal disruption events (TDEs), in which stars are disrupted by supermassive black holes, have been proposed as potential sources of high-energy neutrinos through hadronic interactions. X-ray-bright TDEs provide dense photon fields…

高能天体物理现象 · 物理学 2026-02-25 Rong-Lan Li , Chengchao Yuan , Hao-Ning He , Yun Wang , Ben-Yang Zhu , Yun-Feng Liang , Ning Jiang , Da-Ming Wei

We report the discovery of complex flaring activity from the galactic nucleus hosting the five-year-old tidal disruption event eRASSt J234402.9-352640 (J2344). With Einstein Probe and XMM-Newton observations, we detected highly structured…

The multiwavelength properties of radio-emitting tidal disruption events (TDEs) are poorly understood. In a previous paper, we presented the first sample of radio-selected, optically-detected TDEs, which included two events (VT J1008 and VT…

高能天体物理现象 · 物理学 2023-10-09 Jean J. Somalwar , Vikram Ravi , Wenbin Lu

Tidal disruption events (TDEs) occur when a star is disrupted by the tidal forces of a supermassive black hole, and these events produce bright multi-wavelength flares. Polarimetric measurements of TDEs allow us to disentangle the geometry…

Owing to their thermal emission, tidal disruption events (TDEs) were regularly detected in the soft X-rays and sometimes in the optical. Only a few TDEs have been detected at hard X-rays: two are high redshift beamed events, one of which…

高能天体物理现象 · 物理学 2016-01-20 Krzysztof Hryniewicz , Roland Walter

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 Supernovae (ASAS-SN). We present optical+UV…

With a growing number of facilities able to monitor the entire sky and produce light curves with a cadence of days, in recent years there has been an increased rate of detection of sources whose variability deviates from standard behavior,…

Three recent global simulations of tidal disruption events (TDEs) have produced, using different numerical techniques and parameters, very similar pictures of their dynamics. In typical TDEs, after the star is disrupted by a supermassive…

高能天体物理现象 · 物理学 2025-03-04 Julian Krolik , Tsvi Piran , Taeho Ryu

Most tidal disruption events (TDEs) are currently found in time-domain optical and soft X-ray surveys, both of which are prone to significant obscuration. The infrared (IR), however, is a powerful probe of dust-enshrouded environments, and…

High-cadence, multiwavelength observations have continuously revealed the diversity of tidal disruption events (TDEs), thus greatly advancing our knowledge and understanding of TDEs. In this work, we conducted an intensive optical-UV and…

When a star passes through the tidal disruption radius of a massive black hole (BH), it can be torn apart by the tidal force of the BH, known as the Tidal Disruption Event (TDE). Since the observed UV/optical luminosity significantly…