Video Experimental Relacionado
Updated: Jan 8, 2026
06:48
Surface Mapping of Earth-like Exoplanets using Single Point Light Curves
Published on: May 10, 2020
3.9K
Estructura térmica horizontal y vertical de exoplanetas a partir de un mapa espectroscópico de eclipse de JWST
Ryan C Challener1,2, Megan Weiner Mansfield3,4, Patricio E Cubillos5,6
1Department of Astronomy, Cornell University, Ithaca, NY USA.
Nature astronomy
|December 19, 2025
Resumen
Los astrónomos mapearon un Júpiter ultracaliente
Área de la Ciencia:
- Ciencia exoplanetaria
- Física atmosférica
- Espectroscopía
Sus antecedentes:
- Los Júpiter ultracalientes exhiben variaciones atmosféricas significativas.
- Las observaciones anteriores carecían de datos atmosféricos multidimensionales.
Objetivo del estudio:
- Crear un mapa espectroscópico multidimensional de la atmósfera de un exoplaneta.
- Resolver los gradientes de temperatura y química atmosférica.
Principales métodos:
- Observación de eclipses secundarios de WASP-18b utilizando NIRISS de JWST.
- Análisis espectroscópico para mapear características atmosféricas.
Principales resultados:
- Reveló gradientes de temperatura longitudinales más débiles de lo predicho.
- Identificó una 'zona caliente' subestelar y una región de 'anillo' más fría.
- La zona caliente muestra una estructura térmica invertida y una menor abundancia de agua.
Conclusiones:
- La disociación del hidrógeno y las nubes del lado nocturno influyen en la emisión térmica.
- El mapeo futuro detallará las propiedades atmosféricas 3D de los exoplanetas.
Videos de Conceptos Relacionados
01:10Kepler's First Law of Planetary Motion
5.3K
In the early 17th century, German astronomer and mathematician Johannes Kepler postulated three laws for the motion of planets in the solar system. He formulated his first two laws based on the observations of his forebears, Nikolaus Copernicus and Tycho Brahe.
Polish astronomer Nikolaus Copernicus put forth a theory that stated a heliocentric model for the solar system. According to this heliocentric theory, all the planets, including Earth, orbit the Sun in circular orbits.
On the other hand,...
Polish astronomer Nikolaus Copernicus put forth a theory that stated a heliocentric model for the solar system. According to this heliocentric theory, all the planets, including Earth, orbit the Sun in circular orbits.
On the other hand,...
5.3K
01:29Kepler's Second Law of Planetary Motion
5.1K
In the early 17th century, German astronomer and mathematician Johannes Kepler postulated three laws for the motion of planets in the solar system. His first law states that all planets orbit the Sun in an elliptical orbit, with the Sun at one of the ellipse's foci. Therefore, the distance of a planet from the Sun varies throughout its revolution around the Sun.
While in an elliptical orbit, the total energy of the planet is conserved. Therefore, the planet slows down when it is at apogee and...
While in an elliptical orbit, the total energy of the planet is conserved. Therefore, the planet slows down when it is at apogee and...
5.1K
01:18Kepler's Third Law of Planetary Motion
4.2K
In the early 17th century, German astronomer and mathematician Johannes Kepler postulated three laws for the motion of planets in the solar system. In 1909, he formulated his first two laws based on the observations of his forebears, Nikolaus Copernicus and Tycho Brahe. However, in 1918, he published his third law of planetary motion, which gives a precise mathematical relationship between a planet's average distance from the Sun and the amount of time it takes to revolve around the Sun. It...
4.2K
01:21Schwarzschild Radius and Event Horizon
2.6K
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...
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...
2.6K
02:39Emission Spectra
75.5K
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.
75.5K
01:09Infrared (IR) Spectroscopy: Overview
4.6K
When electromagnetic radiation passes through a material, atoms or molecules transition from a lower to a higher energy state by absorbing radiation corresponding to the energy difference between the two states. The absorption of infrared (IR) radiation causes transitions between vibrational energy levels in a molecule. Therefore, IR spectroscopy is a useful analytical tool for determining the molecular structure of molecules.
Different compounds display unique properties due to their...
Different compounds display unique properties due to their...
4.6K