Results 1 to 10 of about 204,579 (280)

BLAST: THE REDSHIFT SURVEY [PDF]

open access: yesThe Astrophysical Journal, 2009
Accepted for publication in the Astrophysical Journal. Maps and associated results are available at http://blastexperiment.info/
Eales, Stephen   +18 more
openaire   +8 more sources

Optical Characteristics of Electromagnetic Radiation, Emitted by Particles or Stars Moving near Supermassive Black Hole

open access: yesGalaxies, 2021
The general problem of calculating of the propagation of electromagnetic radiation from particles or stars moving in the vicinity of a supermassive black hole is considered in geometrical optics approximation within the framework of the general theory of
Stanislav Komarov
doaj   +1 more source

Electromagnetic Waves in Cosmological Spacetime

open access: yesUniverse, 2023
We consider the propagation of electromagnetic waves in the Friedmann–Lemaître–Robertson–Walker metric. The exact solutions for plane and spherical wave are written down. The corresponding redshift, amplitude change, and dispersion are discussed. We also
Denitsa Staicova, Michail Stoilov
doaj   +1 more source

Optimal redshift weighting for redshift-space distortions [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2016
10 pages, 5 figures, submitted to ...
Ruggeri, Rossana   +5 more
openaire   +5 more sources

Using Multivariate Imputation by Chained Equations to Predict Redshifts of Active Galactic Nuclei

open access: yesFrontiers in Astronomy and Space Sciences, 2022
Redshift measurement of active galactic nuclei (AGNs) remains a time-consuming and challenging task, as it requires follow up spectroscopic observations and detailed analysis.
Spencer James Gibson   +12 more
doaj   +1 more source

Measurement methods for gamma-ray bursts redshifts

open access: yesFrontiers in Astronomy and Space Sciences, 2023
In the era of multi-messenger astronomy, gamma-ray bursts (GRBs) with known redshifts, especially high-redshift GRBs, are a powerful tool for studying the structure and evolution of the early Universe.
Mengci Li   +14 more
doaj   +1 more source

Coelenterazine Indicators for the Specific Imaging of Human and Bovine Serum Albumins

open access: yesSensors, 2023
Albumin assays in serum are important for the prognostic assessment of many life-threatening diseases, such as heart failure, liver disease, malnutrition, inflammatory bowel disease, infections, and kidney disease. In this study, synthetic coelenterazine
Sung-Bae Kim   +4 more
doaj   +1 more source

A Theoretical Study of Interband Absorption Spectra of Spherical Sector Quantum Dots under the Effect of a Powerful Resonant Laser

open access: yesNanomaterials, 2023
We explore the variation of interband absorption spectra of GaAs spherical sector quantum dots (QDs) in response to a strong resonant laser, using the renormalized wave function method. Even though a spherical sector QD appears identical to a section cut
Le Thi Dieu Hien   +5 more
doaj   +1 more source

A Modified Vilsmeier–Haack Strategy to Construct β-Pyridine-Fused 5,10,15,20-Tetraarylporphyrins

open access: yesSynOpen, 2020
A modified Vilsmeier–Haack strategy has been developed to construct a novel series of π-extended nickel(II) or copper(II) complexes of 2-chloro-3-formyl- and 3-formylpyrido[2,3-b]porphyrins from 2-acetamido-meso-tetraarylporphyrins. After chromatographic
Pargat Singh, Mahendra Nath
doaj   +1 more source

High-redshift cosmography [PDF]

open access: yesJournal of Cosmology and Astroparticle Physics, 2010
We constrain the parameters describing the kinematical state of the universe using a cosmographic approach, which is fundamental in that it requires a very minimal set of assumptions (namely to specify a metric) and does not rely on the dynamical equations for gravity.
Vitagliano, V.   +3 more
openaire   +4 more sources

Home - About - Disclaimer - Privacy