Results 91 to 100 of about 1,284,561 (328)

Tidal disruption events and quasi‐periodic eruptions

Astronomische Nachrichten, 2023
Tidal disruption events (TDEs) occur when a star passes close to a massive black hole so that the tidal forces of the black hole exceed the binding energy of a star and cause it to be ripped apart. Part of the matter will fall onto the black hole, causing a strong increase in luminosity.
Webb, Natalie A., Barret, Didier, Godet, Olivier, Gupta, Maitrayee, Lin, Dacheng, Quintin, Erwan, Tranin, Hugo   +6 more
openaire   +3 more sources

Rational Tuning of Hygroscopic Oscillation of Stacked Nanoflake Assemblies for Continuous Ambient Energy Harvesting

Advanced Materials, EarlyView.
Stacked nanoflake assembly (SNA) membranes can oscillate autonomously, offering opportunities for soft actuation and energy harvesting. This work uncovers the physical mechanism behind the sustained oscillation of SNA membranes in gradient humidity and identifies three governing dimensionless parameters, enabling rational design for optimizing SNA ...
Zijing Zhang, Jimin Fu, Gesa Zhang, Zhihua Liang, Boxun Zhang, Haimin Yao   +5 more
wiley   +1 more source

Tidal disruption flares of stars from moderately recoiled black holes [PDF]

, 2019
We analyse stellar tidal disruption events as a possible observational signature of gravitational wave induced recoil of supermassive black holes. As a black hole wanders through its galaxy, it will tidally disrupt bound and unbound stars at rates ...
Loeb, Abraham, Stone, Nicholas
core   +1 more source

Reverberation Evidence for Stream Collision and Delayed Disk Formation in Tidal Disruption Events

The Astrophysical Journal
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).
Hengxiao Guo, Jingbo Sun, Shuangliang Li, Yan-Fei Jiang, Tinggui Wang, Defu Bu, Ning Jiang, Yanan Wang, Yuhan Yao, Rongfeng Shen, Minfeng Gu, Mouyuan Sun   +11 more
doaj   +1 more source

1‐D Collocated Dual‐Gradient Sensory Fibers for Comprehensive Sensing and Decoding of Complex Human Motion and Physiology

Advanced Materials, EarlyView.
Coupled materials design enables a monolithic fiber that integrates complementary sensing regimes into a single wearable strand. By preserving informative signal features across subtle physiological deformation, large body motion, and mixed mechanical inputs, the dual‐gradient architecture generates synchronized, less redundant outputs that improve ...
Yunheum Lee, Sungha Jeon, Min Kim, Joonhee Won, Jinwook Yeo, Kyunghyun Jo, Soyeon Lee, Kieun Park, Yechan Yang, Chul Kim, Gun‐Hee Lee, Seunghwa Ryu, Sungho Jo, Seongjun Park   +13 more
wiley   +1 more source

Fallback Rates in Partial Tidal Disruptions of White Dwarfs by Intermediate-mass Black Holes

The Astrophysical Journal
The fallback rate of debris after the partial tidal disruption of a star by an intermediate-mass black hole (IMBH) might provide important signatures of such black holes rather than supermassive ones.
Debojyoti Garain, Tapobrata Sarkar
doaj   +1 more source

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

The 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, S. Srivastav, M. D. Fulton, S. Gomez, M. E. Huber, S. R. Oates, P. Ramsden, L. Rhodes, S. J. Smartt, K. W. Smith, A. Aamer, J. P. Anderson, F. E. Bauer, E. Berger, T. de Boer, K. C. Chambers, P. Charalampopoulos, T.-W. Chen, R. P. Fender, M. Fraser, H. Gao, D. A. Green, L. Galbany, B. P. Gompertz, M. Gromadzki, C. P. Gutiérrez, D. A. Howell, C. Inserra, P. G. Jonker, M. Kopsacheili, T. B. Lowe, E. A. Magnier, C. McCully, S. L. McGee, T. Moore, T. E. Müller-Bravo, M. Newsome, E. Padilla Gonzalez, C. Pellegrino, T. Pessi, M. Pursiainen, A. Rest, E. J. Ridley, B. J. Shappee, X. Sheng, G. P. Smith, G. Terreran, M. A. Tucker, J. Vinkó, R. J. Wainscoat, P. Wiseman, D. R. Young   +51 more
doaj   +1 more source

A Piezo‐Mimetic Ionic Hydrogel Harnessing Joint Motion for Cartilage Repair

Advanced Science, EarlyView.
A piezo‐mimetic ionic hydrogel converts mechanical deformation into bioactive ionic currents via stress‐induced asymmetric ion migration. Coupled with sustained Mg2+ release, this mechano‐electrochemical platform bridges mechanical loading and cellular signaling, enabling load‐adaptive stimulation and enhanced cartilage regeneration. ABSTRACT Articular
Chenyuan Gao, Xinyu Wang, Zhifeng Wu, Xinya Zhang, Xiao Geng, Ti Zhang, Yue Wang, Hongwei Xia, Jun Zhang, Xianbo Qiu, Cuiru Sun, Yingjie Yu, Wenli Dai, Hua Tian, Qing Cai   +14 more
wiley   +1 more source

Tidal disruption of fuzzy dark matter subhalo cores [PDF]

, 2018
We study tidal stripping of fuzzy dark matter (FDM) subhalo cores using simulations of the Schr"{o}dinger-Poisson equations and analyze the dynamics of tidal disruption, highlighting the differences with standard cold dark matter.
Xiaolong Du, Bodo Schwabe, Schwabe, Bodo, David Bürger, Niemeyer, Jens C., Du, Xiaolong, Bürger, David, Jens C. Niemeyer   +7 more
core   +1 more source

Rubin Observatory’s Survey Strategy Performance for Tidal Disruption Events

The Astrophysical Journal Supplement Series, 2023
Tidal disruption events (TDEs) are rare transients, which are considered as promising tools for probing supermassive black holes in quiescent galaxies.
K. Bučar Bricman, S. van Velzen, M. Nicholl, A. Gomboc   +3 more
doaj   +1 more source