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We present the optical and infrared properties of a sample of 24 radio transient sources discovered in the Very Large Array Sky Survey (VLASS). Previous studies of their radio emission showed that these sources resemble young…

高能天体物理现象 · 物理学 2025-10-03 M. Kunert-Bajraszewska , D. Kozieł-Wierzbowska , D. Stern , A. Krauze , N. Zafar , T. Connor , M. J. Graham

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

We present a systematic search for tidal disruption events (TDEs) using radio data from the Variables and Slow Transients (VAST) Pilot Survey conducted using the Australian Square Kilometre Array Pathfinder (ASKAP). Historically, TDEs have…

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…

Using archival SDSS multi-epoch imaging data (Stripe 82), we have searched for the tidal disruption of stars by super-massive black holes in non-active galaxies. Two candidate tidal disruption events (TDEs) are identified. They have optical…

Radio observations of tidal disruption events (TDEs) probe material ejected by the disruption of stars by supermassive black holes (SMBHs), uniquely tracing the formation and evolution of jets and outflows, revealing details of the…

高能天体物理现象 · 物理学 2020-07-08 Kate D. Alexander , Sjoert van Velzen , Assaf Horesh , B. Ashley Zauderer

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…

We present a systematic analysis of the radio properties of an X-ray selected sample of tidal disruption event (TDE) candidates discovered by the eROSITA telescope. We find radio sources coincident with half of the transient events (11…

高能天体物理现象 · 物理学 2025-04-15 A. J. Goodwin , M. Burn , G. E. Anderson , J. C. A. Miller-Jones , I. Grotova , P. Baldini , Z. Liu , A. Malyali , A. Rau , M. Salvato

Tidal disruption events (TDEs) are multi-messenger transients in which a star is tidally destroyed by a supermassive black hole at the center of galaxies. The Rubin Observatory Legacy Survey of Space and Time (LSST) is anticipated to…

高能天体物理现象 · 物理学 2024-10-30 K. Szekerczes , T. Ryu , S. H. Suyu , S. Huber , M. Oguri , L. Dai

Tidal disruption events (TDEs) occur when a star is gravitationally disrupted by the tidal field of a supermassive black hole during a close encounter. Radio emission has recently been detected in TDEs and is commonly attributed to…

高能天体物理现象 · 物理学 2025-12-30 Yuri Sato , Mukul Bhattacharya , Jose Carpio , Jewel Capili , Kohta Murase

This paper presents a systematic study of X-ray-selected canonical tidal disruption events (TDEs) discovered in the western Galactic hemisphere of the first two eROSITA all-sky surveys (eRASS1 and eRASS2) performed between Dec 2019 and Dec…

Observational astronomy of tidal disruption events (TDEs) began with the detection of X-ray flares from quiescent galaxies during the ROSAT all-sky survey of 1990-1991. The flares complied with theoretical expectations, having high peak…

高能天体物理现象 · 物理学 2021-03-30 R. Saxton , S. Komossa , K. Auchettl , P. G Jonker

Tidal Disruption Events (TDEs) are transient events observed when a star passes close enough to a supermassive black hole to be tidally destroyed. Many TDE candidates have been discovered in host galaxies whose spectra have weak or no line…

星系天体物理 · 物理学 2016-02-12 K. Decker French , Iair Arcavi , Ann Zabludoff

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

We report an observational estimate of the rate of stellar tidal disruption flares (TDFs) in inactive galaxies, based on a successful search for these events among transients in galaxies using archival SDSS multi-epoch imaging data (Stripe…

星系天体物理 · 物理学 2014-08-27 Sjoert van Velzen , Glennys R. Farrar

The existence of optical-ultraviolet Tidal Disruption Events (TDEs) could be considered surprising because their electromagnetic output was originally predicted to be dominated by X-ray emission from an accretion disk. Yet over the last…

高能天体物理现象 · 物理学 2020-11-04 Sjoert van Velzen , Thomas W. -S. Holoien , Francesca Onori , Tiara Hung , Iair Arcavi

Late-time ($\sim$ year) radio follow-up of optically-discovered tidal disruption events (TDEs) is increasingly resulting in detections at radio wavelengths, and there is growing evidence for this late-time radio activity to be common to the…

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

Radio observations of tidal disruption events (TDEs) - when a star is tidally disrupted by a supermassive black hole (SMBH) - provide a unique laboratory for studying outflows in the vicinity of SMBHs and their connection to accretion onto…

高能天体物理现象 · 物理学 2021-02-24 Assaf Horesh , S. Bradley Cenko , Iair Arcavi
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