Results 31 to 40 of about 47,912 (274)

Merger relics of cluster galaxies [PDF]

, 2013
Context. Sheen and collaborators recently found that a surprisingly large portion (38%) of massive early-type galaxies in heavy clusters show strong merger-related disturbed features.
Ji, Inchan, Jung, Intae, Lee, Jaehyun, Sheen, Yun-Kyeong, Yi, Sukyoung K.   +4 more
core   +1 more source

A Degradable Bioinspired Flier with Aerogel‐Based Colorimetric Sensors for Environmental Monitoring

Advanced Science, EarlyView.
Biodegradable fliers are developed inspired by Tipuana tipu samaras, integrating cellulose nanocrystal aerogel (CNCa) sensors loaded with natural dyes for pH and ammonia detection. The lightweight, degradable fliers mimic natural morphology and aerodynamics, offering an eco‐friendly, scalable solution for in situ environmental monitoring after passive ...
Gianpaolo Gallo, Ruowen Tu, Carlo Filippeschi, Stefano Mariani, Barbara Mazzolai   +4 more
wiley   +1 more source

On the Frequency of Multiple Galaxy Mergers in ΛCDM Cosmological Simulations

The Astrophysical Journal
Mergers are believed to play a pivotal role in galaxy evolution, and measuring the galaxy merger fraction is a longstanding goal of both observational and theoretical studies.
Jonathan Mack, Shy Genel
doaj   +1 more source

Edible Pneumatic Battery for Sustained and Repeated Robot Actuation

Advanced Science, EarlyView.
This work presents an edible energy source and valve system to power soft, pneumatically driven edible robots. A chemical reaction between sodium bicarbonate and citric acid generates carbon dioxide gas, and a pressure‐triggered edible valve enables self‐repetitive motion of the edible actuator.
Bokeon Kwak, Shuhang Zhang, Alexander Keller, Qiukai Qi, Jonathan Rossiter, Dario Floreano   +5 more
wiley   +1 more source

Detection Rate of Galaxy Cluster-lensed Stellar Binary Black Hole Mergers by the Third-generation Gravitational-wave Detectors

The Astrophysical Journal
Gravitational waves (GWs) from stellar binary black hole (sBBH) mergers can be strongly gravitational lensed by intervening galaxies/galaxy clusters. Only a few works have investigated cluster-lensed sBBH mergers by adopting oversimplified models, while ...
Zhiwei Chen, Yushan Xie, Youjun Lu, Huanyuan Shan, Nan Li, Yuchao Luo, Xiao Guo   +6 more
doaj   +1 more source

Food‐Activated Microneedle Sensor for Real‐Time, Colorimetric Spoilage Monitoring of Pre‐Packaged Food

Advanced Science, EarlyView.
A microneedle spoilage sensor for packaged food products is presented. The sensor is composed entirely of food‐derived agents, integrated together using a novel material processing approach. This resultant platform nondestructively reports spoilage state in real‐time through a colorimetric output.
Shadman Khan, Akansha Prasad, Mahum Javed, Roderick MacLachlan, Carlos D. M. Filipe, Tohid F. Didar   +5 more
wiley   +1 more source

The Connection between Galaxy Mergers, Star Formation, and Active Galactic Nuclei Activity in the HSC-SSP

The Astrophysical Journal
Internal gas inflows driven by galaxy mergers are considered to enhance star formation rates (SFRs), fuel supermassive black hole growth, and stimulate active galactic nuclei (AGNs).
Kiyoaki Christopher Omori, Connor Bottrell, Sabine Bellstedt, Aaron S. G. Robotham, Hassen M. Yesuf, Andy D. Goulding, Marcin Sawicki, Tohru Nagao, Tsutomu T. Takeuchi   +8 more
doaj   +1 more source

Massive Black Hole Binaries: Dynamical Evolution and Observational Signatures

Advances in Astronomy, 2012
The study of the dynamical evolution of massive black hole pairs in mergers is crucial in the context of a hierarchical galaxy formation scenario. The timescales for the formation and the coalescence of black hole binaries are still poorly constrained ...
M. Dotti, A. Sesana, R. Decarli
doaj   +1 more source

Episodic activities of supermassive black holes at redshift $z\le 2$: driven by mergers?

, 2010
It has been suggested for quite a long time that galaxy mergers trigger activities of supermassive black holes (SMBHs) on the grounds of imaging observations of individual galaxies.
Alexander, Barnes, Bentz, Berti, Chatzichristou, Chen Hu, Corbin, Cox, Dahlen, De Robertis, Erwin, Faber, Ferrarese, Ferrarese, Förster Schreiber, Gebhardt, Genzel, Haehnelt, Haiman, Hopkins, Hopkins, Hopkins, Hopkins, Hopkins, Hopkins, Hughes, Häring, Jahnke, Jian-Min Wang, Kim, King, King, Kinney, Kollmeier, Lacey, Lauer, Lin, Magorrian, Marconi, Marconi, Martini, Martini, Munoz Marin, Netzer, Reichard, Robaina, Ryan, Schmitt, Shemmer, Shen, Shen, Shields, Shields, Shu Zhang, Soltan, Springel, Tacconi ., Tacconi ., Taniguchi, Toomre, Tremaine, Volonteri, Volonteri, Wang, Wang, Wang, Wang, Wyithe, Wyithe, Yan-Rong Li, Ye-Fei Yuan   +70 more
core   +1 more source

Kinematic classifications of local interacting galaxies: implications for the merger/disk classifications at high-z [PDF]

, 2015
The classification of galaxy mergers and isolated disks is key for understanding the relative importance of galaxy interactions and secular evolution during the assembly of galaxies.
Casey, Caitlin M., Hayward, Christopher C., Hung, Chao-Ling, Kewley, Lisa J., Larson, Kirsten L., Rich, Jeffrey A., Sanders, D. B., Smith, Howard A., Yuan, Tiantian   +8 more
core   +3 more sources