Results 191 to 200 of about 95,116 (297)

Galaxy–Galaxy Strong Lensing with U-Net (GGSL-UNet). I. Extracting Two-dimensional Information from Multiband Images in Ground and Space Observations

The Astrophysical Journal Supplement Series
We present a novel deep learning method to separately extract the two-dimensional flux information of the foreground galaxy (deflector) and background system (source) of galaxy–galaxy strong-lensing events using U-Net (GGSL-UNet for short). In particular,
Fucheng Zhong, Ruibiao Luo, Nicola R. Napolitano, Crescenzo Tortora, Rui Li, Xincheng Zhu, Valerio Busillo, L. V. E. Koopmans, Giuseppe Longo   +8 more
doaj   +1 more source

Basic Elements of Strong Gravitational Lensing

Space Science Reviews
Abstract Even when used to describe the same phenomenon, equations, graphics and words each give different perspectives and lead to complementary insights. The basic elements of strong gravitational lensing are introduced here favoring words and graphics over equations whenever possible.
Paul L. Schechter, Jeremy D. Schnittman
openaire   +2 more sources

What's Hard Is Yet to Come: Critical Junctures and Changing Gender Beliefs at the Transition From College to Career

Sociological Forum, EarlyView.
ABSTRACT Drawing on 71 interviews with 20 respondents across four waves before and after their graduation, we explore whether and how the transition from college to career can lead to new experiences with and understandings of gender inequality for elite graduates of color. While all respondents experienced or witnessed gender inequality and recognized
Emily K. Carian, Amy L. Johnson
wiley   +1 more source

Unpacking Merit, Fit, and Diversity: A Multifaceted Framework to Academic Gatekeeping in Social Sciences at U.S. R1 Research Universities

Sociological Inquiry, EarlyView.
This study draws on interviews with 50 sociology and business professors across two private and five public American universities, and proposes a novel “Merit‐Fit‐Diversit” framework to show how narratives of merit, fit, and diversity emerge at different evaluation stages of tenure‐track job candidates. The evaluation produces inequality because: merit
Leping Wang
wiley   +1 more source

Gravitational lensing by a dark compact object in modified gravity and observational constraints from Einstein rings

European Physical Journal C: Particles and Fields
In this manuscript, we provide a comprehensive study of gravitational lensing by dark compact objects predicted by modified gravity (MOG) based on the scalar–vector–tensor action, with the aim of providing new insights into the nature of gravitational ...
Nagina Rehman, Zoe C. S. Chan, Mubasher Jamil, Mustapha Azreg-Aïnou   +3 more
doaj   +1 more source

Finding Stars: Mapping the Geography of the World's Scientific Elites

Transactions of the Institute of British Geographers, EarlyView.
Short Abstract Scientific excellence is clustering ever more tightly in a few ‘superstar’ cities. Four—New York, Boston, London and the San Francisco Bay Area—now host 12% of the world's top scientists. In contrast, the Global South remains largely absent, with the notable exception of Beijing's dramatic rise.
Andrés Rodríguez‐Pose, Leiboyu Xiang, Neil Lee   +2 more
wiley   +1 more source

Is Earendel a Star? Investigating the Sunrise Arc Using JWST Strong and Weak Gravitational Lensing Analyses

The Astrophysical Journal
The galaxy cluster WHL J013719.8−08284 at z = 0.566 exhibits a strong-lensing feature known as the Sunrise Arc, which hosts Earendel, the most distant candidate star observed to date at z  ≈ 6.2.
Zachary P. Scofield, M. James Jee, Sangjun Cha, Hyosun Park   +3 more
doaj   +1 more source

Women in space: A review of known physiological adaptations and health perspectives

Experimental Physiology, EarlyView.
Abstract Exposure to the spaceflight environment causes adaptations in most human physiological systems, many of which are thought to affect women differently from men. Since only 11.5% of astronauts worldwide have been female, these issues are largely understudied.
Millie Hughes‐Fulford, Danielle J. Carroll, Heather C. M. Allaway, Bonnie J. Dunbar, Aenor J. Sawyer   +4 more
wiley   +1 more source

Physiological cerebrospinal fluid interactions between brain and eye structures are altered after long‐duration spaceflight

Experimental Physiology, EarlyView.
Abstract Long‐duration spaceflight represents an extreme challenge, triggering adaptive responses including spaceflight‐associated neuro‐ocular syndrome, characterized by diminished visual acuity and ocular changes, which is a significant health risk for Mars missions.
Ge Tang, Steven Jillings, Ben Jeurissen, Elena Tomilovskaya, Inna Nosikova, Alexandra Ryabova, Ekaterina Pechenkova, Viktor Petrovichev, Ilya Rukavishnikov, Stefan Sunaert, Paul M. Parizel, Lyudmila Makovskaya, Valentin Sinitsyn, Jan Sijbers, Jitka Annen, Steven Laureys, Angelique Van Ombergen, Seyed‐Ahmad Ahmadi, Floris L. Wuyts, Peter zu Eulenburg   +19 more
wiley   +1 more source

The gravitational bending of acoustic Schwarzschild black hole. [PDF]

Eur Phys J C Part Fields, 2023
Qiao CK, Zhou M.
europepmc   +1 more source