Results 161 to 170 of about 71,531 (348)

AGEL: Is the Conflict Real? Investigating Galaxy Evolution Models Using Strong Lensing at 0.3 < z < 0.9

The Astrophysical Journal
Observed evolution of the total mass distribution with redshift is crucial to testing galaxy evolution theories. To measure the total mass distribution, strong gravitational lenses complement the resolved dynamical observations that are currently limited
Nandini Sahu, Kim-Vy Tran, Sherry H. Suyu, Anowar J. Shajib, Sebastian Ertl, Glenn G. Kacprzak, Karl Glazebrook, Tucker Jones, Keerthi Vasan G. C., Tania M. Barone, A. Makai Baker, Hannah Skobe, Caro Derkenne, Geraint F. Lewis, Sarah M. Sweet, Sebastian Lopez   +15 more
doaj   +1 more source

SHARP – III. First use of adaptive-optics imaging to constrain cosmology with gravitational lens time delays

, 2016
Geoff C.-F. Chen, S. H. Suyu, Kenneth C. Wong, C. D. Fassnacht, Tzihong Chiueh, A. Halkola, I Shing Hu, Matthew W. Auger, L. V. E. Koopmans, David Lagattuta, J. P. McKean, Simona Vegetti   +11 more
openalex   +2 more sources

An Economic Analysis of Difficulty Adjustment Algorithms in Proof‐of‐Work Blockchain Systems

International Economic Review, EarlyView.
ABSTRACT We study the stability of cryptocurrency systems through difficulty adjustment. Bitcoin's difficulty adjustment algorithm (DAA) exhibits instability when the reward elasticity of the hash rate is high, implying that a sharp price reduction could disrupt the current Bitcoin system.
Shunya Noda, Kyohei Okumura, Yoshinori Hashimoto   +2 more
wiley   +1 more source

First Resolution of Microlensed Images of a Binary-lens Event

The Astrophysical Journal
We resolve the multiple images of the binary-lens microlensing event ASASSN-22av using the GRAVITY instrument of the Very Large Telescope Interferometer (VLTI).
Zexuan Wu, Subo Dong, A. Mérand, Christopher S. Kochanek, Przemek Mróz, Jinyi Shangguan, Grant Christie, Thiam-Guan Tan, Thomas Bensby, Joss Bland-Hawthorn, Sven Buder, Frank Eisenhauer, Andrew P. Gould, Janez Kos, Tim Natusch, Sanjib Sharma, Andrzej Udalski, J. Woillez, David A. H. Buckley, I. B. Thompson, Karim Abd El Dayem, Anthony Berdeu, Jean-Philippe Berger, Guillaume Bourdarot, Wolfgang Brandner, Richard I. Davies, Denis Defrère, Catherine Dougados, Antonia Drescher, Andreas Eckart, Maximilian Fabricius, Helmut Feuchtgruber, Natascha M. Förster Schreiber, Paulo Garcia, Reinhard Genzel, Stefan Gillessen, Gernot Heißel, Sebastian Hönig, Mathis Houlle, Pierre Kervella, Laura Kreidberg, Sylvestre Lacour, Olivier Lai, Romain Laugier, Jean-Baptiste Le Bouquin, James Leftley, Bruno Lopez, Dieter Lutz, Felix Mang, Florentin Millour, Miguel Montargès, Hugo Nowacki, Mathias Nowak, Thomas Ott, Thibaut Paumard, Karine Perraut, Guy Perrin, Romain Petrov, Pierre-Olivier Petrucci, Nicolas Pourre, Sebastian Rabien, Diogo C. Ribeiro, Sylvie Robbe-Dubois, Matteo Sadun Bordoni, Daryl Santos, Jonas Sauter, Jules Scigliuto, Taro T. Shimizu, Christian Straubmeier, Eckhard Sturm, Matthias Subroweit, Calvin Sykes, Linda Tacconi, Frédéric Vincent, Felix Widmann, the GRAVITY+ collaboration   +75 more
doaj   +1 more source

The imprint of f(R) gravity on weak gravitational lensing – II. Information content in cosmic shear statistics [PDF]

, 2016
Masato Shirasaki, Takahiro Nishimichi, Baojiu Li, Yuichi Higuchi   +3 more
openalex   +1 more source

Understanding Atrial Fibrillation Complexity Through the Lens of Turbulence Dynamics: Implications for Treatment Strategies

Journal of Cardiovascular Electrophysiology, EarlyView.
ABSTRACT Atrial fibrillation (AF) is the most common sustained cardiac arrhythmia encountered in clinical practice. Its incidence increases significantly with age and has become a major global public health issue. Although research into the mechanisms of AF has spanned over a century‐ranging from the reentry theory to the rotor hypothesis‐none of these
Xin Chu, Xiaohan Jiang, Qing Qiao, Xiaojun Wang, Hong Ye   +4 more
wiley   +1 more source

Influence of gravitational tilt on the thermocapillary convection in a non-axisymmetric liquid bridge

New Journal of Physics
Fluid slosh caused by residual acceleration in microgravity is a common problem encountered in space engineering. To solve this problem, the ground-based experiment research on the influence of gravity jitter and gravitational tilt on the thermocapillary
Shuo Yang, Yupeng Zhang, Jie Cui, Daocheng Qin, Yuhang Wang, Pushi Ge, Jintao Luo, Duojiao Guan, Yunyi Zheng   +8 more
doaj   +1 more source

CL0024+1654 as gravitational lens of radio galaxies [PDF]

, 2008
Filomena Volino
openalex   +1 more source

Lensing Magnification Seen by Gravitational Wave Detectors [PDF]

, 2021
Giulia Cusin, Ruth Durrer, Irina Dvorkin
openalex   +1 more source

Pan‐Europe Revisited: Inter‐War Debates and the EU's Pursuit of Geopolitical Power

JCMS: Journal of Common Market Studies, EarlyView.
ABSTRACT The European Union's (EU) transformation from a peace project to an assertive geopolitical actor reflects enduring tensions in integration theory dating back to the inter‐war period. This paper develops a comparative framework distinguishing territorial integration logic, which emphasises bounded political communities and collective defence ...
Kamil Zwolski
wiley   +1 more source