Results 41 to 50 of about 62,552 (337)

AT 2022aedm and a New Class of Luminous, Fast-cooling Transients in Elliptical Galaxies

open access: yesThe Astrophysical Journal Letters, 2023
We present the discovery and extensive follow-up of a remarkable fast-evolving optical transient, AT 2022aedm, detected by the Asteroid Terrestrial impact Last Alert Survey (ATLAS).
M. Nicholl   +51 more
doaj   +1 more source

Relativistic cross sections of mass stripping and tidal disruption of a star by a super-massive rotating black hole

open access: yes, 2005
[abbreviated] We consider the problem of tidal disruption of a star by a super-massive Kerr black hole. Using a numerically fast Lagrangian model of the tidally disrupted star we survey the parameter space of the problem and find the regions in the ...
Beloborodov   +11 more
core   +1 more source

Propagation of a Precessing Jet in the Envelope of Tidal Disruption Events

open access: yesThe Astrophysical Journal
It is likely that the disk of a tidal disruption event (TDE) is misaligned with respect to the equatorial plane of the spinning supermassive black hole (SMBH), since the initial stellar orbit before disruption most likely has an inclined orbital plane ...
Hao-Yu Yuan, Hong-Zhou Wu, Wei-Hua Lei
doaj   +1 more source

Disruption of a Red Giant Star by a Supermassive Black Hole and the Case of PS1-10jh

open access: yes, 2014
The development of a new generation of theoretical models for tidal disruptions is timely, as increasingly diverse events are being captured in surveys of the transient sky. Recently, Gezari et al.
Amaro-Seoane, Pau   +2 more
core   +1 more source

The newfound relationship between extrachromosomal DNAs and excised signal circles

open access: yesFEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

AT2022cmc: A Tidal Disruption Event with a Two-component Jet in a Bondi-profile Circumnuclear Medium

open access: yesThe Astrophysical Journal
A supermassive black hole can launch a relativistic jet when it violently disrupts a star that passes too close. Such jetted tidal disruption events (TDEs) are rare and unique tools to investigate quiescent supermassive black holes, jet physics, and ...
Chang Zhou   +5 more
doaj   +1 more source

Mid-infrared Outbursts in Nearby Galaxies: Nuclear Obscuration and Connections to Hidden Tidal Disruption Events and Changing-look Active Galactic Nuclei

open access: yesThe Astrophysical Journal Letters, 2023
We study the properties of galaxies hosting mid-infrared outbursts in the context of a catalog of 500,000 galaxies from the Sloan Digital Sky Survey. We find that nuclear obscuration, as inferred by the surrounding dust mass, does not correlate with host
Sierra A. Dodd   +7 more
doaj   +1 more source

SWIFT J164449.3+573451: a plunging event with the Poynting-flux dominated outflow

open access: yes, 2012
Swift J164449+573451 is a peculiar outburst which is most likely powered by the tidal disruption of a star by a massive black hole. Within the tidal disruption scenario, we show that the periastron distance is considerably smaller than the disruption ...
Alexander   +28 more
core   +1 more source

Tidal Disruption Events and High-energy Neutrinos [PDF]

open access: yesProceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021), 2021
Plenary highlight talk presented at the 37th International Cosmic Ray Conference (ICRC 2021).
openaire   +2 more sources

Non‐Invasive Multidimensional Capacitive Sensing for In Vivo Traumatic Brain Injury Monitoring

open access: yesAdvanced Materials Technologies, EarlyView.
Single‐electrode, multidimensional capacitive sensors noninvasively assess cerebral autoregulation and compliance for traumatic brain injury monitoring. ABSTRACT Traumatic brain injury (TBI) is a major cause of death and disability, but invasive intracranial pressure (ICP) monitoring is risky, and current non‐invasive methods lack the resolution and ...
Shawn Kim   +8 more
wiley   +1 more source

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