Results 81 to 90 of about 292,957 (316)

Metals at High Redshifts [PDF]

Proceedings of the International Astronomical Union, 2001
The amount of metals present in the Universe and its cosmological evolution is a key issue for our understanding of how star formation proceeds from the collapse of the first objects to the formation of present day galaxies. We discuss here recent results at the two extremes of the density scale.1.
openaire   +2 more sources

Infrared resummation for biased tracers in redshift space [PDF]

Journal of Cosmology and Astroparticle Physics, 2018
We incorporate the effects of redshift space distortions and non-linear bias in time-sliced perturbation theory (TSPT). This is done via a new method that allows to map cosmological correlation functions from real to redshift space.
M. Ivanov, S. Sibiryakov
semanticscholar   +1 more source

Infrared Nanocrystals for Space Application: Hardness to Irradiations

Advanced Functional Materials, EarlyView.
This article investigates infrared HgTe nanocrystals under X‐ray and ion irradiation, revealing remarkable radiation hardness. It uncovers distinct degradation mechanisms and shows that the nanomaterial outperforms integrated electronics. The results position colloidal nanocrystals as promising candidates for resilient space and harsh‐environment ...
Alexandre Neyret, Dario Mastrippolito, Bingbing Xia, Adrien Khalili, Maxime Lebreton, Giorgia Strobbia, Albin Colle, Marco Paye, Mariarosa Cavallo, Erwan Bossavit, Claire Abadie, Yoann Prado, Debora Pierucci, Victor Parahyba, Francois Coursaget, David Darson, Emrick Briand, Ian Vickridge, Stephane Demiguel, Sebastien Massenot, Jean‐Marc Belloir, Vincent Goiffon, Emmanuel Lhuillier   +22 more
wiley   +1 more source

Measuring Galaxy Environments with Deep Redshift Surveys

, 2005
We study the applicability of several galaxy environment measures (n^th-nearest-neighbor distance, counts in an aperture, and Voronoi volume) within deep redshift surveys.
Brian F. Gerke, Darren S. Madgwick, Jeffrey A. Newman, Kauffmann G., Marc Davis, Michael C. Cooper, Renbin Yan   +6 more
core   +1 more source

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

Atomic‐Scale Light Coupling Control in Ultrathin Photonic Membranes

Advanced Functional Materials, EarlyView.
Ultrathin photonic nanomembranes provide atomic‐scale control over the coupling between incident light and high‐Q photonic modes, enabling angstrom‐level resonance tuning and strong field confinement. When integrated with TMD monolayers, they further yield enhanced light–matter interactions, offering a versatile platform for advancing quantum photonics,
Chih‐Zong Deng, Chun‐Hao Chiang, Sunhao Shi, Jui‐Han Fu, Yen‐Ju Wu, Kuniaki Konishi, Vincent Tung, Chun‐Wei Chen, Ya‐Lun Ho   +8 more
wiley   +1 more source

Peering into the Cosmic Dawn: JWST Cycle 1 Data Reveals Early Galaxy Candidates at Redshifts z > 9.5

Edinburgh Student Journal of Science
Observing high-redshift objects provides a window into the past, enabling insight into galaxy formation, matter distribution, and the nature of dark matter and energy.
Sev Zielinska
doaj   +1 more source

Cool Gas in High-Redshift Galaxies [PDF]

, 2013
Over the past decade, observations of the cool interstellar medium (ISM) in distant galaxies via molecular and atomic fine structure line (FSL) emission have gone from a curious look into a few extreme, rare objects to a mainstream tool for studying ...
C. Carilli, F. Walter
semanticscholar   +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

Covalent Organic Frameworks for Photocatalytic CO2 Reduction: Metal Integration Principles, Strategies and Functions

Advanced Functional Materials, EarlyView.
Covalent organic frameworks (COFs) with metals have been recognized as versatile platforms for photocatalytic CO2 reduction (CO2PRR). Herein, an overview of metal integration strategies for COFs is systematically summarized. Regulatory mechanisms and structure–activity relationships between metal integration and COF‐based CO2PRR are emphasized.
Jie He, Minxian Zhang, Jinqiang Zhang, Hongqi Sun, Shaobin Wang, Xiaoguang Duan   +5 more
wiley   +1 more source