Results 101 to 110 of about 4,263,806 (339)

Emerging 2D Materials and Their Hybrid Nanostructures for Label‐Free Optical Biosensing: Recent Progress and Outlook

Advanced Functional Materials, EarlyView.
This review highlights recent advances in label‐free optical biosensors based on 2D materials and rationally designed mixed‐dimensional nanohybrids, emphasizing their synergistic effects and novel functionalities. It also discusses multifunctional sensing platforms and the integration of machine learning for intelligent data analysis.
Xinyi Li, Yonghao Fu, Yuehe Lin, Dan Du
wiley   +1 more source

Probabilistic Forward Modeling of Galaxy Catalogs with Normalizing Flows

The Astronomical Journal
Evaluating the accuracy and calibration of the redshift posteriors produced by photometric redshift (photo- z ) estimators is vital for enabling precision cosmology and extragalactic astrophysics with modern wide-field photometric surveys.
John Franklin Crenshaw, J. Bryce Kalmbach, Alexander Gagliano, Ziang Yan, Andrew J. Connolly, Alex I. Malz, Samuel J. Schmidt, The LSST Dark Energy Science Collaboration   +7 more
doaj   +1 more source

Cosmic Complementarity: H0 and Ωm from Combining Cosmic Microwave Background Experiments and Redshift Surveys [PDF]

, 1998
We show that the detection of acoustic oscillations in both upcoming cosmic microwave background (CMB) satellite experiments and large-redshift surveys can yield 5% determinations of H0 and Ωm, an order-of-magnitude improvement over CMB data alone.
D. Eisenstein, Wayne Hu, Max Tegmark
semanticscholar   +1 more source

Electrically Tunable On‐Chip Topological Photonics with Integrated Carbon Nanotubes

Advanced Functional Materials, EarlyView.
This work demonstrates electrically tunable on‐chip topological THz devices by integrating 2D carbon nanotube (CNT) sheets with valley‐Hall photonic crystals, enabling broadband transmission modulation (71% modulation depth) and tunable narrowband filtering (0.54 GHz shift) through electrically induced thermal tuning. This advancement paves the way for
Jifan Yin, Wenhao Wang, Thomas Caiwei Tan, Abhishek Kumar, Ridong Jia, Nikhil Navaratna, Ranjan Singh, Lijuan Xie   +7 more
wiley   +1 more source

JWST Discovery of a High-redshift Tidal Disruption Event Candidate in COSMOS-Web

The Astrophysical Journal
The rates and properties of tidal disruption events (TDEs) provide valuable insights into their host galaxy central stellar densities and the demographics of their central supermassive black holes. TDEs have been observed only at low redshifts ( z  ≲ 1),
Mitchell Karmen, Suvi Gezari, Erini Lambrides, Hollis B. Akins, Colin Norman, Caitlin M. Casey, Justin Pierel, David Coulter, Armin Rest, Ori Dr. Fox, Yukta Ajay, Natalie Allen, Nicole E. Drakos, Seiji Fujimoto, Sebastian Gomez, Ghassem Gozaliasl, Olivier Ilbert, Jeyhan S. Kartaltepe, Anton M. Koekemoer, Zachary G. Lane, Henry Joy McCracken, Louise Paquereau, Jason Rhodes, Brant E. Robertson, Marko Shuntov, Matthew R. Siebert, Sune Toft, Thomas Wevers, Yossef Zenati   +28 more
doaj   +1 more source

Weak Lensing by High-Redshift Clusters of Galaxies II: Mean Redshift of the Faint Background Galaxy Population

, 2003
We use weak lensing shear measurements of six z>0.5 clusters of galaxies to derive the mean lensing redshift of the background galaxies used to measure the shear. Five of these clusters are compared to X-ray mass models and verify a mean lensing redshift
Bartelmann, Bartelmann, Bolzonella, Castander, Clowe, Clowe, Cohen, D. Clowe, Dye, Fahlman, Fernández-Soto, Fontana, G. A. Luppino, Gioia, Henry, Henry, Hoekstra, Hughes, Jeltema, Luppino, Luppino, Mellier, N. Kaiser, Neumann, Smail, Tran, Trentham, Yee   +27 more
core   +1 more source

Three-dimensional Identification and Reconstruction of Galaxy Systems within Flux-limited Redshift Surveys [PDF]

, 2001
We have developed a new geometrical method for identifying and reconstructing a homogeneous and highly complete set of galaxy groups within flux-limited redshift surveys.
C. Marinoni, M. Davis, J. Newman, A. Coil   +3 more
semanticscholar   +1 more source

Thermal Phase‐Modulation of Thickness‐Dependent CVD‐Grown 2D In2Se3

Advanced Functional Materials, EarlyView.
A comprehensive study of CVD‐grown 2D In2Se3 reveals a distinct thickness‐dependent phase landscape and a reversible, thermally driven transformation between β″ and β* variants. In situ TEM electron diffraction and Raman spectroscopy reveal structural dynamics, while the structural invariance of the α‐phase in ultrathin regimes highlights its stability—
Dasun P. W. Guruge, Zhenhuan Chen, Joseph F. S. Fernando, Chao Zhang, Liangzhi Kou, Konstantin L. Firestein, Dmitri V. Golberg   +6 more
wiley   +1 more source

The Massive and Distant Clusters of WISE Survey 2: Equatorial First Data Release

The Astrophysical Journal
The Massive and Distant Clusters of WISE Survey 2 (MaDCoWS2) is a new survey designed as the successor of the original MaDCoWS survey. MaDCoWS2 improves upon its predecessor by using deeper optical and infrared data and a more powerful detection ...
Khunanon Thongkham, Anthony H. Gonzalez, Mark Brodwin, Ariane Trudeau, Ripon Saha, Peter Eisenhardt, S. A. Stanford, Emily Moravec, Thomas Connor, Daniel Stern   +9 more
doaj   +1 more source

Probing neutrino masses with future galaxy redshift surveys [PDF]

, 2004
We perform a new study of future sensitivities of galaxy redshift surveys to the free-streaming effect caused by neutrino masses, adding the information on cosmological parameters from measurements of primary anisotropies of the cosmic microwave ...
J. Lesgourgues, S. Pastor, L. Perotto
semanticscholar   +1 more source