Results 91 to 100 of about 89,711 (344)

Topological Insulator Layered Bi2Te3 Based 3D‐Printed Nanocarbon Electrode for Rechargeable Aqueous Ammonium‐Ion Battery

Advanced Functional Materials, EarlyView.
In this work, Bi2Te3 is integrated into a 3D‐printed nanocarbon electrode for NH4+ storage. A rocking‐chair battery with CuHCF as the cathode delivers a high energy density of 134.8 Wh kg−1 and a power density of 1800 W kg−1. The design allows easy recovery of carbon additives, promoting sustainability and recyclability in next‐generation aqueous ...
Sunny Nandi, Martin Pumera
wiley   +1 more source

RVSNUpy: A Python Package for Spectroscopic Redshift Measurement Based on Cross Correlation

The Astronomical Journal
We introduce RVSNUpy , a new Python package designed to measure spectroscopic redshifts. Based on inverse-variance-weighted cross correlation, RVSNUpy determines redshifts by comparing observed spectra with various rest-frame template spectra.
Taewan Kim, Jubee Sohn, Ho Seong Hwang
doaj   +1 more source

Metal Abundances of Intermediate-redshift Active Galactic Nuclei: Evidence for a Population of Lower-metallicity Seyfert 2 Galaxies at z = 0.3–0.4

The Astrophysical Journal, 2023
We derive oxygen abundances for two samples of Seyfert 2 (Sy2) active galactic nuclei (AGNs) selected from the KPNO International Spectroscopic Survey (KISS).
David J. Carr, John J. Salzer, Caryl Gronwall, Anna L. Williams   +3 more
doaj   +1 more source

Think Outside the Color Box: Probabilistic Target Selection and the SDSS-XDQSO Quasar Targeting Catalog

, 2011
We present the SDSS-XDQSO quasar targeting catalog for efficient flux-based quasar target selection down to the faint limit of the Sloan Digital Sky Survey (SDSS) catalog, even at medium redshifts (2.5
Abazajian, Abazajian, Abell, Adam D. Myers, Adelman-McCarthy, Adelman-McCarthy, Aihara, Benjamin A. Weaver, Bishop, Bovy, Butler, Chelouche, David J. Schlegel, David W. Hogg, Dempster, Donald P. Schneider, Eisenstein, Erin S. Sheldon, Fan, Gunn, Gunn, Hennawi, Hennawi, Hogg, Hopkins, Ian D. McGreer, Ivezić, Ivezić, Ivezić, Jessica A. Kirkpatrick, Jiang, Jimenez, Jo Bovy, Joseph F. Hennawi, Kozłowski, Lupton, MacLeod, Martin, McGreer, Myers, Myers, Myers, Myers, Ménard, Nicholas P. Ross, Padmanabhan, Palanque-Delabrouille, Pier, Rasmussen, Richards, Richards, Richards, Richards, Richards, Ross, Schlegel, Schlegel, Schmidt, Schneider, Schölkopf, Scranton, Scranton, Shen, Shen, Smith, Stoughton, Worseck, Xue, Yip, York   +69 more
core   +1 more source

No periodicities in 2dF Redshift Survey data [PDF]

Monthly Notices of the Royal Astronomical Society, 2002
4 pages, 5 figures, MNRAS ...
Ed Hawkins, Michael R. Merrifield, Steve Maddox   +2 more
openaire   +3 more sources

Scalable Perovskite Quantum Dot Glass Nanocomposites for High‐Efficiency Luminescent Solar Concentrators

Advanced Functional Materials, EarlyView.
This study evaluates the scalability of PQD GNC‐based LSCs for BIPV applications. Experimental data and Monte Carlo simulations predict performance up to 1 m2, achieving a peak power conversion efficiency of 3.17%. The results confirm the viability of these LSCs for energy‐efficient building applications.
Emre İlter, Utku Ekim, Elshan Asadi, Konstantin Tsoi, Selçuk Yerci, Miray Çelikbilek Ersundu, Ali Erçin Ersundu   +6 more
wiley   +1 more source

Model-agnostic Cosmological Inference with SDSS-IV eBOSS: Simultaneous Probing for the Background and Perturbed Universe

The Astrophysical Journal
Here, we explore certain subtle features imprinted in data from the completed Sloan Digital Sky Survey IV (SDSS-IV) extended Baryon Oscillation Spectroscopic Survey (eBOSS) as a combined probe for the background and perturbed universe. We reconstruct the
Purba Mukherjee, Anjan A Sen
doaj   +1 more source

The quasars’ redshift estimation method based on piecewise Gaussian fitting

International Journal of Distributed Sensor Networks, 2019
To solve the problem that high-redshift and broad emission lines weaken the quasar discovery and observation severely, a new redshift calculation method based on piecewise Gaussian fitting is proposed. The denoised and normalized spectrum is divided into
Yanrui Su, Li Zhang, Bin Jiang, Jiaqi Liu, Fabao Yan   +4 more
doaj   +1 more source

The UNCOVER Survey: A First-look HST+JWST Catalog of Galaxy Redshifts and Stellar Population Properties Spanning 0.2 ≲ z ≲ 15

The Astrophysical Journal Supplement Series, 2023
The recent UNCOVER survey with the James Webb Space Telescope (JWST) exploits the nearby cluster A2744 to create the deepest view of our Universe to date by leveraging strong gravitational lensing.
Bingjie Wang, Joel Leja, Ivo Labbé, Rachel Bezanson, Katherine E. Whitaker, Gabriel Brammer, Lukas J. Furtak, John R. Weaver, Sedona H. Price, Adi Zitrin, Hakim Atek, Dan Coe, Sam E. Cutler, Pratika Dayal, Pieter van Dokkum, Robert Feldmann, Danilo Marchesini, Marijn Franx, Natascha Förster Schreiber, Seiji Fujimoto, Marla Geha, Karl Glazebrook, Anna de Graaff, Jenny E. Greene, Stéphanie Juneau, Susan Kassin, Mariska Kriek, Gourav Khullar, Michael Maseda, Lamiya A. Mowla, Adam Muzzin, Themiya Nanayakkara, Erica J. Nelson, Pascal A. Oesch, Camilla Pacifici, Richard Pan, Casey Papovich, David J. Setton, Alice E. Shapley, Renske Smit, Mauro Stefanon, Katherine A. Suess, Edward N. Taylor, Christina C. Williams   +43 more
doaj   +1 more source

The 2MASS Tully-Fisher Survey : Mapping the Mass in the Universe

, 2012
The 2MASS Tully-Fisher Survey (2MTF) aims to measure Tully-Fisher (TF) distances for all bright inclined spirals in the 2MASS Redshift Survey (2MRS) using high quality HI widths and 2MASS photometry.
Hong, T., Jarrett, T., Jones, H., Koribalski, B., Macri, L., Masters, K., Springob, C., Staveley-Smith, L.   +7 more
core   +1 more source