Results 21 to 30 of about 727 (164)

The Next Generation Virgo Cluster Survey. XXXIV. Ultracompact Dwarf Galaxies in the Virgo Cluster

The Astrophysical Journal Supplement Series, 2020
Abstract We present a study of ultracompact dwarf (UCD) galaxies in the Virgo cluster based mainly on imaging from the Next Generation Virgo Cluster Survey (NGVS). Using ∼100 deg2 of u*giz imaging, we have identified more than 600 candidate UCDs, from the core of Virgo out to its virial radius.
Liu, Chengze, Côté, Patrick, Peng, Eric W., Roediger, Joel, Zhang, Hongxin, Ferrarese, Laura, Sánchez-Janssen, Rubén, Guhathakurta, Puragra, Yang, Xiaohu, Jing, Yipeng, Alamo-Martinez, Karla, Blakeslee, John P., Cuilandre, Jean-Charles, Duc, Pierre-Alain, Durrell, Patrick, Gwyn, Stephen, Jordán, Andres, Ko, Youkyung, Lançon, Ariane, Lim, Sungsoon, Longobardi, Alessia, Mei, Simona, Mihos, J. Christopher, Munoz, Roberto, Powalka, Mathieu, Puzia, Thomas, Spengler, Chelsea, Toloba, Elisa, Peng, Eric, Blakeslee, John, Boselli, Alessandro   +30 more
openaire   +6 more sources

New perspective on galaxy clustering as a cosmological probe: General relativistic effects [PDF]

Physical Review D, 2009
10 pages, 2 figures, accepted for publication in Physical Review ...
Yoo, Jaiyul, Fitzpatrick, A. Liam, Zaldarriaga, Matias   +2 more
openaire   +2 more sources

Testing generalized scalar-tensor theories of gravity with clusters of galaxies

Physical Review D, 2023
We test the generalized scalar-tensor theory in static systems, namely galaxy clusters. The Degenerate higher-order scalar-tensor (DHOST) theory modifies the Newtonian potential through effective Newtonian constant and $Ξ_1$ parameter in the small scale, which modifies the hydrostatic equilibrium.
Haridasu B. S., Karmakar P., De Petris M., Cardone V. F., Maoli R.   +4 more
openaire   +3 more sources

Surrogate‐Optimized Flow‐Guided Miniature Condenser for Rapid Exhaled Glucose Detection

Advanced Materials Technologies, EarlyView.
A surrogate‐optimized miniature condenser guides humid exhaled flow toward cold surfaces to accelerate exhaled breath condensate collection. By improving vapor access within a compact footprint, the design increases sample yield. This enables post‐collection enrichment and rapid colorimetric glucose detection from dilute exhaled biomarkers within a 5 ...
Yiming Thomas Lu, Yamin Mansur, Sai Peri, Jiangyuan Wan, Amio Pronoy Das Ritwik, Emily L. Johnson, Jingcheng Ma   +6 more
wiley   +1 more source

Solid Harmonic Wavelet Bispectrum for Image Analysis

Advanced Science, EarlyView.
The Solid Harmonic Wavelet Bispectrum (SHWB), a rotation‐ and translation‐invariant descriptor that captures higher‐order (phase) correlations in signals, is introduced. Combining wavelet scattering, bispectral analysis, and group theory, SHWB achieves interpretable, data‐efficient representations and demonstrates competitive performance across texture,
Alex Brown, Mathilda Avirett‐Mackenzie, Carolin Villforth, Georgios Exarchakis   +3 more
wiley   +1 more source

The Next Generation Virgo Cluster Survey (NGVS). XXXII. A Search for Globular Cluster Substructures in the Virgo Galaxy Cluster Core [PDF]

The Astrophysical Journal, 2018
Abstract Substructure in globular cluster (GC) populations around large galaxies is expected in galaxy formation scenarios that involve accretion or merger events, and it has been searched for using direct associations between GCs and structure in the diffuse galaxy light, or with GC kinematics.
Mathieu Powalka, Thomas H. Puzia, Ariane Lançon, Alessia Longobardi, Eric W. Peng, Pierre-Alain Duc, Karla Alamo-Martínez, John P. Blakeslee, Patrick Côté, Jean-Charles Cuillandre, Patrick Durrell, Paul Eigenthaler, Laura Ferrarese, Puragra Guhathakurta, S. D. J. Gwyn, Patrick Hudelot, Chengze Liu, Simona Mei, Roberto P. Muñoz, Joel Roediger, Rubén Sánchez-Janssen, Elisa Toloba, Hongxin Zhang   +22 more
openaire   +5 more sources

From Flow to Function: Using Different Static Mixers to Fabricate Microarchitected Materials Via Chaotic Printing

Advanced Science, EarlyView.
Complex microarchitectures emerge from simple flow‐driven transformations as static mixers iteratively reorient and split material domains. Coupled with diverse deposition strategies, chaotic printing provides an accessible platform for fabricating architected materials that support biologically and chemically relevant processes. ABSTRACT Nature builds
Edna Johana Bolívar‐Monsalve, Carlos Fernando Ceballos‐González, Diego Alonso Quevedo‐Moreno, Irving Isaí Rendón‐Moreno, Ariel Cantoral‐Sánchez, Héctor Ambriz‐González, Mario Moisés Alvarez, Grissel Trujillo‐de Santiago   +7 more
wiley   +1 more source

Electronics‐Free Visual Monitoring of Dry Eye Disease‐Related Tear Biomarkers Using Smart Scleral Lenses

Advanced Science, EarlyView.
An electronics‐free smart scleral lens passively monitors dry eye disease‐related tear biomarkers through colorimetric sensing of chloride, pH, and ocular surface temperature. Smartphone‐assisted image analysis enables quantitative interpretation, providing a simple, non‐invasive strategy for ocular health monitoring without integrated electronics ...
Ziheng Wang, Sang Mok Park, Dawn Meyer, Seul Ah Lee, Yumin Dai, Tianhao Yu, Taewoong Park, Feiyang Li, Jason Gerard Jedlicka, Tristan Michael Long, Oluwabunmi T. Oladele, Gillian C. Shaw, Shin Ae Park, Pete S. Kollbaum, Young L. Kim, Chi Hwan Lee   +15 more
wiley   +1 more source

The Geography of Success: A Spatial Analysis of Export Intensity in the Italian Wine Industry

Agribusiness, EarlyView.
ABSTRACT This paper investigates the paradox of how Italy's fragmented, SME‐dominated wine industry achieves global export success. Moving beyond purely firm‐centric explanations, we test whether export intensity is spatially dependent, clustering geographically in regional ecosystems.
Nicolas Depetris Chauvin, Jonas Di Vita
wiley   +1 more source

Generation and Implications of Post-Merger Turbulence in Clusters of Galaxies [PDF]

Symposium - International Astronomical Union, 1998
Observations in X-ray and optical suggest that mergers of sub-clusters with galaxy clusters are quite common (for Coma see e.g., White et al. 1993; Colless & Dunn 1996; Ishizaka & Mineshige 1996). A merger leads to violent relaxation of the dissipationless dark matter resulting in a time-dependent gravitational potential. This in turn generates
openaire   +1 more source