Results 71 to 80 of about 120,003 (344)

Test of the Gravitational Redshift with Galileo Satellites in an Eccentric Orbit. [PDF]

Physical Review Letters, 2018
On August 22, 2014, the satellites GSAT-0201 and GSAT-0202 of the European GNSS Galileo were unintentionally launched into eccentric orbits. Unexpectedly, this has become a fortunate scientific opportunity since the onboard hydrogen masers allow for a ...
S. Herrmann, Felix Finke, Martin Lülf, Olga Kichakova, D. Puetzfeld, Daniela Knickmann, Meike List, B. Rievers, G. Giorgi, C. Günther, H. Dittus, R. Prieto-Cerdeira, F. Dilßner, F. Gonzalez, E. Schönemann, J. Ventura-Traveset, C. Lämmerzahl   +16 more
semanticscholar   +1 more source

Supraparticles Composed of Graphitic Carbon Nitride Nanoparticles and Silica‐Supported Horseradish Peroxidase as Customizable Hybrid Catalysts for Photo‐Biocatalytic Cascade Reactions in Continuous Flow

Advanced Functional Materials, EarlyView.
Herein presented supraparticles combine the nanoparticulate photocatalyst graphitic carbon nitride with the enzyme horseradish peroxidase, which is immobilized on silica nanoparticles. In an optimized compatibility range, both catalysts operate effectively within the hybrid supraparticles and catalyze a cascade reaction consisting of the photocatalytic
Bettina Herbig, Egzon Cermjani, Doris Hanselmann, Johannes Prieschl, Angelika Schmitt, Michael S. Moritz, Christian Papp, Greta Nölke, Stefano Di Fiore, Christoph Deckers, Thomas H. Rehm, Susanne Wintzheimer   +11 more
wiley   +1 more source

Dark Energy Survey Year 1 Results: redshift distributions of the weak-lensing source galaxies [PDF]

Monthly notices of the Royal Astronomical Society, 2017
We describe the derivation and validation of redshift distribution estimates and their uncertainties for the populations of galaxies used as weak-lensing sources in the Dark Energy Survey (DES) Year 1 cosmological analyses.
B. Hoyle, D. Gruen, G. Bernstein, M. Rau, J. Vicente, W. Hartley, E. Gaztañaga, J. DeRose, M. Troxel, C. Davis, A. Alarcon, N. MacCrann, J. Prat, C. S'anchez, E. Sheldon, Risa Wechsler, J. Asorey, M. Becker, C. Bonnett, A. Rosell, D. Carollo, M. Kind, F. Castander, R. Cawthon, C. Chang, M. Childress, T. Davis, A. Drlica-Wagner, M. Gatti, K. Glazebrook, J. Gschwend, S. Hinton, J. Hoormann, A. Kim, A. King, K. Kuehn, G. Lewis, C. Lidman, H. Lin, E. MacAulay, M. Maia, P. Martini, D. Mudd, A. Moller, R. Nichol, R. Ogando, R. Rollins, A. Roodman, A. Ross, E. Rozo, E. Rykoff, S. Samuroff, I. Sevilla-Noarbe, R. Sharp, N. E. Sommer, B. Tucker, S. Uddin, T. Varga, P. Vielzeuf, F. Yuan, B. Zhang, T. Abbott, F. Abdalla, S. Allam, J. Annis, K. Bechtol, A. Benoit-Lévy, E. Bertin, D. Brooks, E. Buckley-Geer, D. Burke, M. Busha, D. Capozzi, J. Carretero, M. Crocce, C. D'Andrea, L. Costa, D. DePoy, S. Desai, H. Diehl, P. Doel, T. Eifler, J. Estrada, A. Evrard, E. Fernandez, B. Flaugher, P. Fosalba, J. Frieman, J. Garc'ia-Bellido, D. Gerdes, T. Giannantonio, D. Goldstein, R. Gruendl, G. Gutiérrez, K. Honscheid, D. James, M. Jarvis, T. Jeltema, M. Johnson, M. Johnson, D. Kirk, E. Krause, S. Kuhlmann, N. Kuropatkin, O. Lahav, T. Li, M. Lima, M. March, J. Marshall, Peter Melchior, F. Menanteau, R. Miquel, B. Nord, C. O’Neill, A. Plazas, A. Romer, M. Sako, E. Sánchez, B. Santiago, V. Scarpine, R. Schindler, M. Schubnell, M. Smith, R. C. Smith, M. Soares-Santos, F. Sobreira, E. Suchyta, M. Swanson, G. Tarlé, D. Thomas, D. Tucker, V. Vikram, A. Walker, J. Weller, W. Wester, R. Wolf, B. Yanny, J. Zuntz   +137 more
semanticscholar   +1 more source

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

High‐Redshift Supernova Rates

The Astrophysical Journal, 2004
We use a sample of 42 supernovae detected with the Advanced Camera for Surveys on-board the Hubble Space Telescope as part of the Great Observatories Origins Deep Survey to measure the rate of core collapse supernovae to z~0.7 and type Ia supernovae to z~1.6. This significantly increases the redshift range where supernova rates have been estimated from
Dahlen, T, Strolger, LG, Riess, AG, Mobasher, B, Chary, RR, Conselice, CJ, Ferguson, HC, Fruchter, AS, Giavalisco, M, Livio, M, Madau, P, Panagia, A, Tonry, JL   +12 more
openaire   +2 more sources

The SDSS-IV Extended Baryon Oscillation Spectroscopic Survey: Baryon Acoustic Oscillations at Redshift of 0.72 with the DR14 Luminous Red Galaxy Sample [PDF]

Astrophysical Journal, 2017
The extended Baryon Oscillation Spectroscopic Survey (eBOSS) Data Release 14 sample includes 80,118 luminous red galaxies (LRGs). By combining these galaxies with the high-redshift tail of the BOSS galaxy sample, we form a sample of LRGs at an effective ...
J. Bautista, M. Vargas-Magaña, K. Dawson, W. Percival, J. Brinkmann, J. Brownstein, Benjamin Camacho, J. Comparat, H. Gil-Mar'in, E. Mueller, J. Newman, A. Prakash, A. Ross, D. Schneider, H. Seo, J. Tinker, R. Tojeiro, Zhongxu Zhai, Gong-Bo Zhao   +18 more
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

HUBBLE PARAMETER MEASUREMENT CONSTRAINTS ON THE REDSHIFT OF THE DECELERATION–ACCELERATION TRANSITION, DYNAMICAL DARK ENERGY, AND SPACE CURVATURE [PDF]

, 2016
We compile an updated list of 38 measurements of the Hubble parameter H(z) between redshifts 0.07 ≤ z ≤ 2.36 and use them to place constraints on model parameters of constant and time-varying dark energy cosmological models, both spatially flat and ...
O. Farooq, Foram Madiyar, Sara Crandall, Bharat Ratra   +3 more
semanticscholar   +1 more source

Dark Energy Survey Year 1 results: measurement of the baryon acoustic oscillation scale in the distribution of galaxies to redshift 1 [PDF]

Monthly notices of the Royal Astronomical Society, 2017
We present angular diameter distance measurements obtained by locating the baryon acoustic oscillations (BAO) scale in the distribution of galaxies selected from the first year of Dark Energy Survey data.
T. Abbott, F. Abdalla, A. Alarcon, S. Allam, F. Andrade-Oliveira, J. Annis, S. Ávila, M. Banerji, N. Banik, K. Bechtol, G. Bernstein, R. Bernstein, E. Bertin, D. Brooks, E. Buckley-Geer, D. Burke, H. Camacho, A. Rosell, M. Kind, J. Carretero, F. Castander, R. Cawthon, K. Chan, M. Crocce, C. Cunha, C. D'Andrea, L. Costa, C. Davis, J. Vicente, D. DePoy, S. Desai, H. Diehl, P. Doel, A. Drlica-Wagner, T. Eifler, J. Elvin-Poole, J. Estrada, A. Evrard, B. Flaugher, P. Fosalba, J. Frieman, J. García-Bellido, E. Gaztañaga, D. Gerdes, T. Giannantonio, D. Gruen, R. Gruendl, J. Gschwend, G. Gutiérrez, W. Hartley, D. Hollowood, K. Honscheid, B. Hoyle, B. Jain, D. James, T. Jeltema, M. Johnson, S. Kent, N. Kokron, E. Krause, K. Kuehn, S. Kuhlmann, N. Kuropatkin, F. Lacasa, O. Lahav, M. Lima, H. Lin, M. Maia, M. Manera, J. Marriner, J. Marshall, P. Martini, Peter Melchior, F. Menanteau, C. Miller, R. Miquel, J. Mohr, E. Neilsen, W. Percival, A. Plazas, A. Porredon, A. Romer, A. Roodman, R. Rosenfeld, A. Ross, E. Rozo, E. Rykoff, M. Sako, E. Sánchez, B. Santiago, V. Scarpine, R. Schindler, M. Schubnell, S. Serrano, I. Sevilla-Noarbe, E. Sheldon, R. C. Smith, M. Smith, F. Sobreira, E. Suchyta, M. Swanson, G. Tarlé, D. Thomas, M. Troxel, D. Tucker, V. Vikram, A. Walker, Risa Wechsler, J. Weller, B. Yanny, Y. Zhang   +110 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