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Related Concept Videos

Emission Spectra02:39

Emission Spectra

65.1K
When solids, liquids, or condensed gases are heated sufficiently, they radiate some of the excess energy as light. Photons produced in this manner have a range of energies, and thereby produce a continuous spectrum in which an unbroken series of wavelengths is present.
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Atomic Emission Spectroscopy: Lab01:29

Atomic Emission Spectroscopy: Lab

244
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...
244
Atomic Emission Spectroscopy: Instrumentation01:22

Atomic Emission Spectroscopy: Instrumentation

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The instrumentation of atomic emission spectrometry (AES) involves various components, including atomization devices that convert samples into gas-phase atoms and ions. There are two main types of atomization devices: continuous and discrete atomizers.  Continuous atomizers, like plasmas and flames, introduce samples in a constant stream, while discrete atomizers inject individual samples using syringes or autosamplers. The most common discrete atomizer is the electrothermal atomizer.
594
Atomic Spectroscopy: Absorption, Emission, and Fluorescence01:23

Atomic Spectroscopy: Absorption, Emission, and Fluorescence

1.3K
Atomic spectroscopy is a vital tool in elemental analysis, both qualitatively and quantitatively. It can be broadly divided into optical spectroscopy, mass spectroscopy, and X-ray spectroscopy methods. The optical spectroscopic methods are atomic absorption spectroscopy (AAS), atomic emission spectroscopy (AES), and atomic fluorescence spectroscopy (AFS). The first step in all three methods is atomization, where the solid, liquid, or solution-phase samples are converted into gas-phase atoms and...
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Atomic Emission Spectroscopy: Overview01:20

Atomic Emission Spectroscopy: Overview

2.5K
Atomic emission spectroscopy (AES) is an analytical technique used to determine the elemental composition of a sample by analyzing the light emitted from excited atoms. In AES, atoms in a sample are excited to higher energy levels by thermal energy from high-temperature sources, such as plasma, arcs, or sparks. When these excited atoms return to lower energy states, they emit light at specific wavelengths characteristic of each element. The resulting atomic emission spectrum, which consists of...
2.5K
Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation01:26

Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation

296
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....
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Updated: Sep 11, 2025

ARL Spectral Fitting as an Application to Augment Spectral Data via Franck-Condon Lineshape Analysis and Color Analysis
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Spectral synthesis techniques for supernovae and kilonovae.

Anders Jerkstrand1

  • 1Department of Astronomy, The Oskar Klein Centre, Stockholm University, AlbaNova, 10691 Stockholm, Sweden.

Living Reviews in Computational Astrophysics
|August 11, 2025
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Summary
This summary is machine-generated.

This review details computational techniques for modeling cosmic explosions like supernovae and kilonovae. Understanding these violent events helps us trace the origin of elements in the universe.

Keywords:
KilonovaNLTERadiative transferSupernova

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Method for Recording Broadband High Resolution Emission Spectra of Laboratory Lightning Arcs
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Hyperspectral Imaging as a Tool to Study Optical Anisotropy in Lanthanide-Based Molecular Single Crystals
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Area of Science:

  • Astrophysics
  • Computational Astrophysics
  • Nuclear Astrophysics

Background:

  • Supernovae (SNe) and kilonovae (KNe) are cataclysmic cosmic explosions.
  • These events are crucial for synthesizing and dispersing heavy elements throughout the universe.
  • Interpreting observational data from SNe and KNe requires advanced spectral synthesis modeling.

Purpose of the Study:

  • To review computational techniques for spectral synthesis modeling of SNe and KNe.
  • To provide a historical perspective on the evolution of these modeling methodologies.
  • To discuss current approximations and numerical schemes in use.

Main Methods:

  • Historical review of modeling techniques, from stellar winds to SNe and KNe.
  • Analysis of approximations for central physical processes in explosions.
  • Comparison of numerical schemes employed in current spectral synthesis codes.

Main Results:

  • The study outlines the evolution of spectral synthesis techniques.
  • It highlights similarities and differences in computational approaches.
  • It identifies areas for improvement in modeling methodologies.

Conclusions:

  • Sophisticated spectral synthesis modeling is essential for understanding SNe and KNe.
  • Continued development of computational techniques will enhance our understanding of nucleosynthesis and element origins.
  • The review provides a roadmap for future advancements in modeling violent cosmic explosions.