Results 91 to 100 of about 169,400 (221)

The Roman View of Strong Gravitational Lenses

The Astrophysical Journal
Galaxy–galaxy strong gravitational lenses can constrain dark matter models and the Lambda cold dark matter cosmological paradigm at subgalactic scales. Currently, there is a dearth of images of these rare systems with high signal-to-noise ratio (SNR) and
Bryce Wedig, Tansu Daylan, Simon Birrer, Francis-Yan Cyr-Racine, Cora Dvorkin, Douglas P. Finkbeiner, Alan Huang, Xiaosheng Huang, Rahul Karthik, Narayan Khadka, Priyamvada Natarajan, Anna M. Nierenberg, Annika H. G. Peter, Justin D. R. Pierel, Xianzhe TZ Tang, Risa H. Wechsler   +15 more
doaj   +1 more source

The Tully-Fisher Zero Point Problem

, 2008
A long standing problem for hierarchical disk galaxy formation models has been the simultaneous matching of the zero point of the Tully-Fisher relation and the galaxy luminosity function (LF).
Bosch, Frank C. van den, Courteau, Stéphane, Dutton, Aaron A.   +2 more
core  

Density profile of dark matter haloes and galaxies in the horizon–agn simulation: the impact of AGN feedback [PDF]

, 2017
Sébastien Peirani, Yohan Dubois, Marta Volonteri, Julien Devriendt, Kevin Bundy, Joseph Silk, Christophe Pichon, Sugata Kaviraj, R. Gavazzi, Mélanie Habouzit   +9 more
openalex   +1 more source

Fitting a self-interacting dark matter model to data ranging from satellite galaxies to galaxy clusters [PDF]

, 2023
Sudhakantha Girmohanta, Robert Shrock
openalex   +1 more source

Oxychlorine Species on Mars: A Review

Reviews of Geophysics, Volume 63, Issue 4, December 2025.
Abstract Oxychlorine species (mainly perchlorate and chlorate) have been identified at multiple locations on the surface of Mars by both orbiter and in situ rovers. They have also been found in martian meteorites. Cl‐isotopes in meteoritic minerals suggest that an oxychlorine cycle has been operating on the martian surface for the last ∼4 billion years.
Kaushik Mitra
wiley   +1 more source

Testing CCC+TL Cosmology with Galaxy Rotation Curves

Galaxies
This paper aims to explore whether astrophysical observations, primarily galaxy rotation curves, result from covarying coupling constants (CCC) rather than from dark matter.
Rajendra P. Gupta
doaj   +1 more source

Dearth of dark matter or massive dark halo? Mass-shape-anisotropy degeneracies revealed by nmagic dynamical models of the elliptical galaxy NGC 3379 [PDF]

, 2009
Flavio De Lorenzi, Ortwin Gerhard, L. Coccato, M. Arnaboldi, M. Capaccioli, N. G. Douglas, K. C. Freeman, Konrad Kuijken, M. R. Merrifield, N. R. Napolitano, E. Noordermeer, Aaron J. Romanowsky, Victor P. Debattista   +12 more
openalex   +1 more source

Automated identification of spotted‐fever tick vectors using convolutional neural networks

Medical and Veterinary Entomology, Volume 39, Issue 4, Page 829-841, December 2025.
We evaluate the performance of convolutional neural networks (CNN) AlexNet, ResNet‐50 and MobileNetV2 for the automated identification of tick species capable of transmitting spotted fever. CNNs achieved accuracy rates of ~90% in identifying ticks and showed sensitivities of 59%–100% according to species, sex, position or image resolution.
Isadora R. C. Gomes, Vinícius L. Miranda, José Fabrício C. Leal, Igor P. Oliveira, Paula J. Silva, Karla Bitencourth, Claudio M. Rodrigues, Liege R. Siqueira, Marcelo B. Labruna, Gilberto S. Gazeta, Marinete Amorim, Rodrigo Gurgel‐Gonçalves   +11 more
wiley   +1 more source

Higgs-dilaton cosmology: An inflation–dark-energy connection and forecasts for future galaxy surveys [PDF]

, 2018
Santiago Casas, Martin Pauly, Javier Rubio   +2 more
openalex   +1 more source

Accurate model of the projected velocity distribution of galaxies in dark matter haloes

, 2023
Han Aung, Daisuke Nagai, Eduardo Rozo, Brandon Wolfe, Susmita Adhikari   +4 more
openalex   +2 more sources