Related Experiment Video
Updated: Jul 4, 2026
06:53
Photoelectron Imaging of Anions Illustrated by 310 Nm Detachment of F−
Published on: July 27, 2018
Spectropolarimetric analysis of waves linked to first ionization potential
Mariarita Murabito1, Marco Stangalini2
1INAF-Osservatorio Astronomico di Roma , Via Frascati 33, I-00078 Monteporzio Catone, Italy.
Summary
High-resolution spectropolarimetry reveals how chromospheric waves influence coronal plasma composition. New research explores Stokes-V amplitude asymmetries as a tool to study wave behavior linked to solar atmospheric abundances.
Area of Science:
- Solar physics
- Plasma astrophysics
- Spectropolarimetry
Background:
- Chromospheric waves are crucial for shaping coronal plasma composition.
- Ponderomotive force from Alfvénic perturbations is a key factor.
- Spectropolarimetric studies link chromospheric waves to enhanced First Ionization Potential (FIP) bias in the corona.
Purpose of the Study:
- Investigate Stokes-V amplitude asymmetries as a novel diagnostic tool.
- Explore wave behavior relevant to solar compositional fractionation processes.
- Enhance understanding of solar atmospheric abundances.
Main Methods:
- Utilizing high-resolution spectropolarimetry measurements.
- Analyzing Stokes-V amplitude asymmetries.
- Connecting chromospheric wave activity to coronal composition.
Main Results:
- Stokes-V amplitude asymmetries show potential as a diagnostic tool.
- Wave behavior can be investigated through these asymmetries.
- This method offers insights into compositional fractionation.
Conclusions:
- Stokes-V amplitude asymmetries provide an alternative diagnostic for chromospheric waves.
- This technique aids in understanding solar atmospheric composition and FIP bias.
- Further research can refine this method for solar abundance studies.
Related Concept Videos
01:19Inductively Coupled Plasma–Mass Spectrometry (ICP–MS): Overview
In inductively coupled plasma–mass spectrometry (ICP–MS), an inductively coupled plasma (ICP) torch is used as an atomizer and ionizer. Solid samples are dissolved and volatilized before being introduced into the high-temperature argon plasma, while solution samples are nebulized and passed through the high-temperature argon plasma. Plasma dissociates the analytes and ionizes their component atoms to form a mixture of positive ions and molecular species. The positive ions are then passed on to...
01:29Atomic Emission Spectroscopy: Lab
AES is a powerful analytical technique, especially effective when used with plasma sources, producing abundant spectra in characteristic emission lines. The Inductively Coupled Plasma (ICP), in particular, yields superior quantitative analytical data due to its high stability, low noise, low background, and minimal interferences under optimal experimental conditions. However, newer air-operated microwave sources are emerging as promising alternatives that could be more cost-effective than...
01:12Electrospray Ionization (ESI) Mass Spectrometry
Higher molecular weight biomolecules are nonvolatile compounds that may decompose before ionizing or vaporizing during mass analysis with conventional electron impact ionization methods. Accordingly, electrospray ionization (ESI) is the favored method for vaporizing and ionizing biomolecules as it circumvents rapid fragmentation and enables the recording of mass signals for the entire biomolecule.
ESI utilizes electrical energy to transfer ions from the liquid phase of the sample into the...
ESI utilizes electrical energy to transfer ions from the liquid phase of the sample into the...
01:19Inductively Coupled Plasma Atomic Emission Spectroscopy: Principle
Inductively coupled plasma (ICP) is the most widely used plasma source in atomic emission spectroscopy (AES), also known as Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES). The ICP source, or torch, consists of three concentric quartz tubes with argon gas flowing through them. A spark from a Tesla coil initiates the ionization of argon, generating a high-temperature plasma.
The ions and electrons produced interact with the fluctuating magnetic field created by a water-cooled...
The ions and electrons produced interact with the fluctuating magnetic field created by a water-cooled...
01:26Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation
Inductively coupled plasma (ICP) is the common plasma source used in atomic emission spectroscopy (AES), a technique that detects and analyzes various elements in a sample. This method is often called inductively coupled plasma atomic emission spectroscopy (ICP-AES).
There are three main types of inductively coupled plasma atomic emission spectroscopy (ICP-AES) instruments: sequential, simultaneous multichannel, and Fourier transform instruments, with the latter being less commonly used.
There are three main types of inductively coupled plasma atomic emission spectroscopy (ICP-AES) instruments: sequential, simultaneous multichannel, and Fourier transform instruments, with the latter being less commonly used.
01:24Mass Spectrum: Interpretation
An unknown compound can be established by identifying the molecular ion peak in the mass spectrum. The molecular ion peak is often weak or absent due to the predominance of fragmentation in high-energy electron beams. In such cases, a soft-energy electron beam can be used to scan the spectrum to enhance the intensity of the molecular ion peak. Additionally, chemical ionization, field ionization, and desorption ionization spectra are used to obtain a relatively intense molecular ion peak.To...