Results 1 to 10 of about 891 (131)

Stokes Spectropolarimetry Applied to Measure Circular Birefringence Dispersion of Aqueous Solutions of Sugars [PDF]

Chirality
This work demonstrates the use of Stokes spectropolarimetry (SSP) to investigate optical rotatory dispersion (ORD), or circular birefringence (CB), of chiral sugar solutions. The results confirm the relationship between concentration and optical rotation, the dependence on wavelength, and the versatility of SSP to characterize optical anisotropies ...
N M Barbosa Neto, Ruan L S Lima
exaly   +3 more sources

SALT Spectropolarimetry and Self-Consistent SED and Polarization Modeling of Blazars

Galaxies, 2017
We report on recent results froma target-of-opportunity program to obtain spectropolarimetry observations with the Southern African Large Telescope (SALT) on flaring gamma-ray blazars. SALT spectropolarimetry and contemporaneous multi-wavelength spectral
Markus Böttcher, B Van Soelen, R J Britto   +2 more
exaly   +3 more sources

Development of a proof-of-concept spectropolarimeter in the framework of the GSST mission: Characterization and performance analysis of a sCMOS image sensor

Frontiers in Astronomy and Space Sciences, 2022
Camera characterization is critical for solar observation instruments such as spectropolarimeters. This paper presents the characterization of the proof-of-concept spectropolarimeter sCMOS image sensor. The report is divided into two parts.
Adriany Rodrigues Barbosa, Franciele Carlesso, Luis Eduardo Antunes Vieira   +2 more
doaj   +1 more source

Applications of Mueller Matrix Polarimetry to Biological and Agricultural Diagnostics: A Review

Applied Sciences, 2022
The review contains a systematization of the main approaches to the practical implementation of Mueller matrix polarimetry and the prospects for its application in biology and agriculture. The most typical optical layouts for measuring the Mueller matrix
Dmitry N. Ignatenko, Alexey V. Shkirin, Yakov P. Lobachevsky, Sergey V. Gudkov   +3 more
doaj   +1 more source

Message in a Bottle: Unveiling the Magneto-Ionic Complexity of AGNs through the Stokes QU-Fitting Technique

Galaxies, 2021
Here, I overview one of the available techniques for the analysis of broad-band spectropolarimetric data, the Stokes QU-fitting. Since broad-band receivers have been installed at most radio facilities, the collection of radio data, both the total ...
Alice Pasetto
doaj   +1 more source

SPGCam: A specifically tailored camera for solar observations

Frontiers in Astronomy and Space Sciences, 2023
Designing a new astronomical instrument typically challenges the available cameras on the market. In many cases, no camera can fulfill the requirements of the instrument in terms of photon budget, speed, and even interfaces with the rest of the ...
David Orozco Suárez, David Orozco Suárez, Daniel Álvarez García, Daniel Álvarez García, Antonio C. López Jiménez, Antonio C. López Jiménez, María Balaguer Jiménez, María Balaguer Jiménez, David Hernández Expósito, David Hernández Expósito, Pierre Labrousse, Pierre Labrousse, Francisco J. Bailén, Francisco J. Bailén, Isabel Bustamante Díaz, Isabel Bustamante Díaz, Eduardo Bailón Martínez, Eduardo Bailón Martínez, Beatriz Aparicio del Moral, Beatriz Aparicio del Moral, José M. Morales Fernández, José M. Morales Fernández, Antonio Sánchez Gómez, Antonio Sánchez Gómez, Ángel Tobaruela Abarca, Ángel Tobaruela Abarca, Antonio J. Moreno Mantas, Antonio J. Moreno Mantas, José L. Ramos Más, José L. Ramos Más, Isabel Pérez Grande, Isabel Pérez Grande, Javier Piqueras Carreño, Javier Piqueras Carreño, Yukio Katsukawa, Masahito Kubo, Yusuke Kawabata, Takayoshi Oba, Manuel Rodríguez Valido, Eduardo Magdaleno Castelló, Jose Carlos Del Toro Iniesta, Jose Carlos Del Toro Iniesta   +41 more
doaj   +1 more source

Radio Observations of Coronal Mass Ejections: Space Weather Aspects

Frontiers in Astronomy and Space Sciences, 2020
We review the current state-of-affairs in radio observations of Coronal Mass Ejections (CMEs) from a Space Weather perspective. In particular, we examine the role of radio observations in predicting or presaging an eruption, in capturing the formation ...
Angelos Vourlidas, Eoin P. Carley, Nicole Vilmer, Nicole Vilmer   +3 more
doaj   +1 more source

The Magnetic Sensitivity of the (250–278 nm) Fe ii Polarization Spectrum

The Astrophysical Journal, 2023
This paper presents a theoretical investigation of the polarization and magnetic sensitivity of the near-ultraviolet (near-UV) solar spectral lines of Fe ii between 250 and 278 nm.
David Afonso Delgado, Tanausú del Pino Alemán, Javier Trujillo Bueno   +2 more
doaj   +1 more source

The Histone Chaperones SET/TAF‐1β and NPM1 Exhibit Conserved Functionality in Nucleosome Remodeling and Histone Eviction in a Cytochrome c‐Dependent Manner

Advanced Science, Volume 10, Issue 29, October 17, 2023., 2023
This study focuses on the molecular action of two histone chaperones: SET/template‐activating factor‐Iβ and nucleophosmin 1. It is shown how these chaperones have specificity for fully dismantled nucleosomes, characterized the histone eviction (removal) process, and its modulation by cytochrome c.
Pedro Buzón, Alejandro Velázquez‐Cruz, Laura Corrales‐Guerrero, Antonio Díaz‐Quintana, Irene Díaz‐Moreno, Wouter H. Roos   +5 more
wiley   +1 more source

mxCSM: A 100-slit, 6-wavelength wide-field coronal spectropolarimeter for the study of the dynamics and the magnetic fields of the solar corona

Frontiers in Astronomy and Space Sciences, 2016
remendous progress has been made in the field of observational coronal magnetometry in the first decade of the 21st century. With the successful construction of the Coronal Multichannel Magnetometer (CoMP) instrument, observations of the linear ...
Haosheng eLin
doaj   +1 more source