Results 61 to 70 of about 73,293 (324)

Looking for tidal streams around Galactic globular clusters

EPJ Web of Conferences, 2012
The picture of building the Milky Way halo from merging protogalactic fragments is considered the local manifestation of the hierarchical galaxy formation process.
Martínez-Delgado D., Carballo-Bello J.A.   +1 more
doaj   +1 more source

3D Printed Ultra‐Fast Plastic Scintillators Based on Perovskite‐Photocurable Polymer Composite

Advanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
The demand for radiation detection is increasing in a number of fields, including high‐energy physics, medical imaging, and homeland security. This study serves to demonstrate the potential for the fabrication of fast perovskite‐based scintillators with complex shapes via stereolithographic additive manufacturing, representing a new path toward the ...
Antonella Giuri, Amal C Chekkallur, Mario Calora, Rosanna Mastria, Loris Martinazzoli, Etiennette Auffray, Sanosh Kunjalukkal Padmanabhan, Sara Carturan, Sandra Moretto, Gianluca Quarta, Lucio Calcagnile, Matteo Polo, Alberto Quaranta, Alfonso Maffezzoli, Anna Paola Caricato, Aurora Rizzo, Carola Esposito Corcione   +16 more
wiley   +1 more source

The Huge Magnetic Toroids in the Milky Way Halo

The Astrophysical Journal
The magnetic fields in our Milky Way can be revealed by the distribution of Faraday rotation measures (RMs) of radio sources behind the Galaxy and of radio pulsars inside the Galaxy. Based on the antisymmetry of the Faraday sky in the inner Galaxy to the
J. Xu, J. L. Han
doaj   +1 more source

Unique Performance Considerations for Printable Organic Semiconductor and Perovskite Radiation Detectors: Toward Consensus on Best Practice Evaluation

Advanced Functional Materials, EarlyView.
A lack of standard approaches for testing and reporting the performance of metal halide perovskites and organic semiconductor radiation detectors has resulted in inconsistent interpretation of performance parameters, impeding progress in the field. This Perspective recommends key metrics and experimental details, which are suggested for reporting in ...
Jessie A. Posar, Matthew Large, Andrea Ciavatti, Laura Basiricò, Beatrice Fraboni, Paul J. Sellin, Attila J. Mozer, Marco Petasecca, Matthew J. Griffith   +8 more
wiley   +1 more source

Halo uncertainties in electron recoil events at direct detection experiments

European Physical Journal C: Particles and Fields, 2021
The dark matter direct detection rates are highly correlated with the phase space distribution of dark matter particles in our galactic neighbourhood.
Tarak Nath Maity, Tirtha Sankar Ray, Sambo Sarkar   +2 more
doaj   +1 more source

On the fraction of dark matter in charged massive particles (CHAMPs)

, 2010
From various cosmological, astrophysical and terrestrial requirements, we derive conservative upper bounds on the present-day fraction of the mass of the Galactic dark matter (DM) halo in charged massive particles (CHAMPs).
, , C. Heiles, D.G. Cerdeño, E Martínez-Gómez, F.J Sánchez-Salcedo, F.J. Sánchez-Salcedo, G. Schmidt, G.K. Parks, J Magaña, J.L. Feng, J.L. Han, J.W. King, L. Chuzhoy, L. Spitzer Jr., L. Spitzer Jr., M. Fellhauer ., M. Markevitch ., M. Taoso, O. Gerhard, P. Natarajan, P.M.W. Kalberla, R. Beck, R. Cen, R.J. Rand, S. Davidson, S. De Lope Amigo, S.L. Dubovsky, V. Belokurov ., W.R. Webber   +29 more
core   +1 more source

CMB as a possible new tool to study the dark baryons in galaxies [PDF]

, 2012
Baryons constitute about 4% of our universe, but most of them are missing and we do not know where and in what form they are hidden. This constitute the so-called missing baryon problem.
A A Nucita, A L Kashin, A Qadir, Ade P A R (Planck Collaboration), Alcock C, Anderson M E, Ansari R, Ashman K M, Aurière M, Bennett C L, Binney J, Binney J, Bregman J N, Calchi Novati, Calchi Novati S, Ceccarelli C, Cen R, Cen R, Chemin L, Chiappini C, Cooray A, Courteau S, D Vetrugno, Dai X, De Paolis F, De Paolis F, De Paolis F, De Paolis F, Draine B, Drake A J, F De Paolis, G Ingrosso, Gerhard O, Grenacher L, Gurzadyan V G, H G Khachatryan, Hoekstra H, Jarosik N, Larson R B, Lin C Y, Oort J H, Pfenniger D, Pfenniger D, Pfenniger D Combes F, Ph Jetzer, Richter P, Riffeser A, S Mirzoyan, Sommer-Larsen J, V G Gurzadyan, Wakker B P, Walker M   +51 more
core   +1 more source

Discovery of an Intrinsic Antiferromagnetic Semiconductor EuSc2Te4 With Magnetism‐Driven Nonlinear Transport

Advanced Functional Materials, EarlyView.
EuSc₂Te₄, an antiferromagnetic semiconductor, exhibits a nonlinear Hall effect (NLHE) characterized by quadratic current–voltage behavior. Combined experimental and theoretical studies reveal that this NLHE is linked to its antiferromagnetism and involves contributions from the quantum metric.
Seng Huat Lee, Yufei Zhao, Noble Gluscevich, Hemian Yi, Zachary Morgan, Huibo Cao, Jahyun Koo, Yu Wang, Jingyang He, Venkatraman Gopalan, Yuanxi Wang, Weiwei Xie, CuiZu Chang, Qiang Zhang, Binghai Yan, Zhiqiang Mao   +15 more
wiley   +1 more source

Galactic Accelerations from the GD-1 Stream Suggest a Tilted Dark Matter Halo

The Astrophysical Journal Letters
Cold dark matter halos are expected to be triaxial and often tilted relative to the stellar disk. Stellar streams provide a sensitive tracer of the Milky Way’s halo shape though models for the Galactic potential are typically limited to simple, symmetric
Jacob Nibauer, Ana Bonaca
doaj   +1 more source

The puzzling assembly of the Milky Way halo – contributions from dwarf Spheroidals and globular clusters

EPJ Web of Conferences, 2012
While recent sky surveys have uncovered large numbers of ever fainter Milky Way satellites, their classification as star clusters, low-luminosity galaxies, or tidal overdensities remains often unclear. Likewise, their contributions to the build-up of the
Lépine S., Koch A., Çalışkan Ş.
doaj   +1 more source