Results 31 to 40 of about 134,801 (246)

Formation of a Massive Lenticular Galaxy Under the Tidal Interaction with a Group of Dwarf Galaxies

The Astrophysical Journal Letters, 2023
Based on the atomic-hydrogen (H i ) observations using the Five-hundred-meter Aperture Spherical radio Telescope, we present a detailed study of the gas-rich massive S0 galaxy NGC 1023 in a nearby galaxy group.
Jin-Long Xu, Ming Zhu, Kelley M. Hess, Naiping Yu, Chuan-Peng Zhang, Xiao-Lan Liu, Mei Ai, Peng Jiang, Jie Wang   +8 more
doaj   +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

Clustering of galaxies around radio quasars at 0.5 < z < 0.8 [PDF]

, 1999
We have observed the galaxy environments around a sample of 21 radio-loud, steep-spectrum quasars at 0 ...
Abell, Allington-Smith, Andersen, Antonucci, Barthel, Barthel, Benítez, Best, Biretta, Burstein, Cardelli, Carlberg, Christian, Condon, Croft, Croft, Croom, Davis, de Robertis, Dickinson, Dopita, Downes, Eales, Ellingson, Ellingson, Fanti, Fisher, Forman, Fort, Fukugita, Groth, Guiderdoni, Guzzo, Hall, Hammer, Henry, Hill, Hudon, Hutchings, Jones, Kaiser, Kapahi, Kellerman, Koo, Kormendy, Lacy, Laing, Laing, Lake, Large, Le Fèvre, Lilje, Lilly, Lilly, Lin, Longair, Longair, Loveday, Loveday, Macklin, Magliocchetti, Magorrian, Margrethe Wold, Mark Lacy, Metcalfe, Miller, Morganti, Netzer, Oke, Peacock, Per B. Lilje, Prestage, Prestage, Rawlings, Reid, Riley, Rocca-Volmerange, Roche, Rosati, Rossitter, Schechter, Scheuer, Schmidtke, Schneider, Seldner, Serjeant, Serjeant, Serjeant, Smail, Small, Smith, Smith, Steidel, Stephen Serjeant, Stockton, Taylor, Valdes, Wilkinson, Willott, Willott, Wurtz, Yates, Yee, Yee, Yee, Yee, Zirbel   +106 more
core   +3 more sources

Powerful Radio-loud Quasars Are Triggered by Galaxy Mergers in the Cosmic Bright Ages

The Astrophysical Journal
While supermassive black holes are ubiquitous features of galactic nuclei, only a small minority are observed during episodes of luminous accretion. The physical mechanism(s) driving the onset of fueling and ignition in these active galactic nuclei (AGN)
Peter Breiding, Marco Chiaberge, Erini Lambrides, Eileen T. Meyer, S. P. Willner, Bryan Hilbert, Martin Haas, George Miley, Eric S. Perlman, Peter Barthel, Christopher P. O’Dea, Alessandro Capetti, Belinda Wilkes, Stefi A. Baum, Duccio F. Macchetto, William Sparks, Grant Tremblay, Colin Norman   +17 more
doaj   +1 more source

AGN Feedback Signatures in UV Emission

Galaxies
Supermassive black holes (SMBH) are believed to influence galaxy evolution through AGN (active galactic nuclei) feedback. Galaxy mergers are key processes of galaxy formation that lead to AGN activity and star formation.
K. Rubinur
doaj   +1 more source

Massive Molecular Gas Companions Uncovered by Very Large Array CO(1–0) Observations of the z = 5.2 Radio Galaxy TN J0924−2201

The Astrophysical Journal, 2023
We present Karl G. Jansky Very Large Array K -band (19 GHz) observations of the redshifted CO(1–0) line emission toward the radio galaxy TN J0924−2201 at z = 5.2, which is one of the most distant radio galaxies with CO detected.
Kianhong Lee, Kotaro Kohno, Bunyo Hatsukade, Fumi Egusa, Takuji Yamashita, Malte Schramm, Kohei Ichikawa, Masatoshi Imanishi, Takuma Izumi, Tohru Nagao, Yoshiki Toba, Hideki Umehata   +11 more
doaj   +1 more source

Discovery of Rare Dying Radio Galaxies Using MeerKAT

Galaxies, 2021
Dying radio galaxies represent a stage of the evolution of active galactic nuclei (AGN), during which the accreting central black hole has switched off and/or falls to such a low level that the plasma outflow can no longer be sustained. When this happens,
Nadeem Oozeer, Lawrence Rudnick, Michael F. Bietenholz, Tiziana Venturi, Kenda Knowles, Konstantinos Kolokythas, Nceba Mhlahlo   +6 more
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

A Chandra study of X-ray sources in the field of the z=2.16 radio galaxy MRC 1138-262 [PDF]

, 2002
We present results from a Chandra X-ray Observatory study of the field X-ray source population in the vicinity of the radio galaxy MRC 1138-262. Many serendipitous X-ray sources are detected in an area of 8'x8' around the radio source and 90% are ...
Carilli, C. L., Harris, D. E., Kurk, J. D., Miley, G. K., Pentericci, L., Rottgering, H. J. A.   +5 more
core   +3 more sources

Parametric Design of Continuum Robots Using Interlocking Ball Joints

Advanced Intelligent Systems, EarlyView.
Herein, a parametric design methodology is introduced for producing a wide variety of modular ball joint‐based continuum robots. It is demonstrate by designing a magnetically actuated continuum robot for cardiac ablations. The methodology is released as an open‐source computer‐assisted design extension that automatically designs continuum robots based ...
Alexandre Mesot, Quentin Boehler, Florian Heemeyer, Sean Lyttle, Buse Aktaş, Bradley J. Nelson   +5 more
wiley   +1 more source