Results 21 to 30 of about 334,520 (391)

The physical properties of star-forming galaxies in the low-redshift universe [PDF]

open access: yes, 2003
We present a comprehensive study of the physical properties of ∼ 10 5 galaxies with measurable star formation in the Sloan Digital Sky Survey (SDSS). By comparing physical information extracted from the emission lines with continuum properties, we build ...
J. Brinchmann   +8 more
semanticscholar   +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

Relativistic redshift of the star S0-2 orbiting the Galactic Center supermassive black hole [PDF]

open access: yesScience, 2019
Gravitational redshift in the Galactic Center General relativity predicts that light emitted by an object in a strong gravitational field—for example, close to a black hole—should be shifted to longer wavelengths.
T. Do   +28 more
semanticscholar   +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

Hubble sinks in the low-redshift swampland [PDF]

open access: yes, 2020
Local determinations of the Hubble constant $H_0$ favour a higher value than Planck based on CMB and $\Lambda$CDM. Through a model-independent expansion, we show that low redshift ($z \lesssim 0.7$) data comprising baryon acoustic oscillations (BAO ...
A. Banerjee   +5 more
semanticscholar   +1 more source

Does Lorentz Relativistic Mass Make Dark Energy Superfluous?

open access: yesUniverse, 2022
This paper shows that a simple and relativistic extension of Newtonian gravity that takes into account Lorentz relativistic mass leads to predictions that fit supernova observations of magnitude versus redshift without the need to introduce dark energy ...
Espen Gaarder Haug
doaj   +1 more source

On the gravitational redshift [PDF]

open access: yesNew Astronomy, 2014
The study of the gravitational redshift\,---\,a relative wavelength increase of $\approx 2 \times 10^{-6}$ was predicted for solar radiation by Einstein in 1908\,---\,is still an important subject in modern physics. In a dispute whether or not atom interferometry experiments can be employed for gravitational redshift measurements, two research teams ...
Klaus Wilhelm, Bhola N. Dwivedi
openaire   +3 more sources

Dark Energy Survey Year 3 results: redshift calibration of the weak lensing source galaxies [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2020
Determining the distribution of redshifts of galaxies observed by wide-field photometric experiments like the Dark Energy Survey (DES) is an essential component to mapping the matter density field with gravitational lensing.
J. Myles   +107 more
semanticscholar   +1 more source

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   +7 more sources

The Host Galaxy and Redshift of the Repeating Fast Radio Burst FRB 121102 [PDF]

open access: yes, 2017
The precise localization of the repeating fast radio burst (FRB 121102) has provided the first unambiguous association (chance coincidence probability p ≲ 3 × 10−4) of an FRB with an optical and persistent radio counterpart.
S. Tendulkar   +23 more
semanticscholar   +1 more source

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