Jove
Visualize
Contáctanos

Videos de Conceptos Relacionados

Emission Spectra02:39

Emission Spectra

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.
Schwarzschild Radius and Event Horizon01:21

Schwarzschild Radius and Event Horizon

No object with a finite mass can travel faster than the speed of light in a vacuum. This fact has an interesting consequence in the domain of extremely high gravitational fields.
The minimum speed required to launch a projectile from the surface of an object to which it is gravitationally bound so that it eventually escapes the object’s gravitational field is called the escape velocity. The escape velocity is independent of the mass of the object. Merging the idea of escape velocity with the...
Atomic Nuclei: Larmor Precession Frequency01:11

Atomic Nuclei: Larmor Precession Frequency

The earth's gravitational field produces a 'twisting force' perpendicular to the angular momentum of a spinning mass (such as a spinning top) that causes the mass to 'wobble' around the gravitational field axis in a phenomenon called precession. Similarly, the magnetic moment (μ) of a spinning nucleus precesses due to an external magnetic field directed along the z-axis. The precession of the magnetic moment vector about the magnetic field is called Larmor precession, and the angular frequency...
Atomic Emission Spectroscopy: Overview01:20

Atomic Emission Spectroscopy: Overview

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...
Atomic Emission Spectroscopy: Instrumentation01:22

Atomic Emission Spectroscopy: Instrumentation

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.
Atomic Emission Spectroscopy: Lab01:29

Atomic 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...

También podría leer

Artículos Relacionados

Artículos vinculados a este trabajo por autores compartidos, revista y gráfico de citas.

Ordenar por
Same author

Newly formed dust within the circumstellar environment of SN Ia-CSM 2018evt.

Nature astronomy·2024
Same author

First Direct Measurement of (12)C((12)C,n)(23)Mg at Stellar Energies.

Physical review letters·2015
Same author

The development and implementation of quality assurance programs to support nutritional measurements.

Analytical and bioanalytical chemistry·2013
Same author

Protoneutron star cooling with convection: the effect of the symmetry energy.

Physical review letters·2012
Same author

Circumstellar material in type Ia supernovae via sodium absorption features.

Science (New York, N.Y.)·2011
Same author

The diversity of type Ia supernovae from broken symmetries.

Nature·2009
Same journal

Erratum for the Research Article "Detecting supramolecular organic nanoparticles during heat wave".

Science (New York, N.Y.)·2026
Same journal

Local signals, systemic decline.

Science (New York, N.Y.)·2026
Same journal

The mechanics of liver regeneration.

Science (New York, N.Y.)·2026
Same journal

Computing in a memory with physics.

Science (New York, N.Y.)·2026
Same journal

Retraction.

Science (New York, N.Y.)·2026
Same journal

Making time.

Science (New York, N.Y.)·2026
Ver todos los artículos relacionados
JoVE
x logofacebook logolinkedin logoyoutube logo
ACERCA DE JoVE
Visión GeneralLiderazgoBlogCentro de Ayuda JoVE
AUTORES
Proceso de PublicaciónConsejo EditorialAlcance y PolíticasRevisión por ParesPreguntas FrecuentesEnviar
BIBLIOTECARIOS
TestimoniosSuscripcionesAccesoRecursosConsejo Asesor de BibliotecasPreguntas Frecuentes
INVESTIGACIÓN
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchivo
EDUCACIÓN
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualCentro de Recursos para ProfesoresSitio de Profesores
Términos y Condiciones de Uso
Política de Privacidad
Políticas

Video Experimental Relacionado

Updated: Jul 1, 2026

Bringing the Visible Universe into Focus with Robo-AO
10:35

Bringing the Visible Universe into Focus with Robo-AO

Published on: February 12, 2013

¡La Supernova 1987A! fue una de ellas.

S E Woosley, M M Phillips

    Science (New York, N.Y.)
    |May 6, 1988
    PubMed
    Resumen
    Este resumen es generado por máquina.

    La supernova de 1987, la más brillante en casi 400 años, ofreció una visión sin precedentes de la muerte de estrellas masivas. Las observaciones de diversos detectores confirmaron muchas teorías, pero también revelaron sorpresas fascinantes sobre este evento cósmico.

    Más Videos Relacionados

    Direct Imaging of Laser-driven Ultrafast Molecular Rotation
    10:52

    Direct Imaging of Laser-driven Ultrafast Molecular Rotation

    Published on: February 4, 2017

    An Externally-Heated Diamond Anvil Cell for Synthesis and Single-Crystal Elasticity Determination of Ice-VII at High Pressure-Temperature Conditions
    07:48

    An Externally-Heated Diamond Anvil Cell for Synthesis and Single-Crystal Elasticity Determination of Ice-VII at High Pressure-Temperature Conditions

    Published on: June 18, 2020

    Videos de Experimentos Relacionados

    Last Updated: Jul 1, 2026

    Bringing the Visible Universe into Focus with Robo-AO
    10:35

    Bringing the Visible Universe into Focus with Robo-AO

    Published on: February 12, 2013

    Direct Imaging of Laser-driven Ultrafast Molecular Rotation
    10:52

    Direct Imaging of Laser-driven Ultrafast Molecular Rotation

    Published on: February 4, 2017

    An Externally-Heated Diamond Anvil Cell for Synthesis and Single-Crystal Elasticity Determination of Ice-VII at High Pressure-Temperature Conditions
    07:48

    An Externally-Heated Diamond Anvil Cell for Synthesis and Single-Crystal Elasticity Determination of Ice-VII at High Pressure-Temperature Conditions

    Published on: June 18, 2020

    Área de la Ciencia:

    • La astronomía y la astrofísica.
    • Las explosiones cósmicas son explosiones cósmicas.
    • Evolución Estelar Evolución Estelar

    Sus antecedentes:

    • La supernova más brillante en casi 400 años, SN 1987A, ocurrió en la Gran Nube de Magallanes.
    • Su proximidad relativa (160.000 años luz) permitió observaciones detalladas y novedosas.
    • Las supernovas representan la muerte violenta de estrellas masivas, un proceso clave en el universo.

    Objetivo del estudio:

    • Aprovechar las oportunidades únicas de observación que ofrece SN 1987A.
    • Mejorar la comprensión de la física que rige la muerte de las estrellas masivas.
    • Para comparar datos de observación con modelos teóricos de las supernovas.

    Principales métodos:

    • Observaciones de múltiples longitudes de onda desde el espacio, detectores terrestres, globos y aviones.
    • Detección de neutrinos utilizando detectores subterráneos profundos.
    • Análisis de curvas de luz y datos espectrales para comprender la liberación y composición de energía.

    Principales resultados:

    • Confirmación de muchas expectativas teóricas con respecto a los mecanismos de supernova.
    • La detección de neutrinos proporcionó evidencia directa del proceso de colapso del núcleo.
    • Datos de observación inesperados desafiaron algunos modelos existentes, destacando nuevos fenómenos.

    Conclusiones:

    • SN 1987A avanzó significativamente en nuestra comprensión de la muerte estelar y la física de las supernovas.
    • El evento subrayó la importancia de la astronomía de múltiples mensajeros (luz y neutrinos).
    • Las sorpresas de SN 1987A continúan impulsando la investigación teórica y observacional en astrofísica.