Video Experimental Relacionado
Updated: Jul 12, 2026
10:35
Bringing the Visible Universe into Focus with Robo-AO
Published on: February 12, 2013
Lo que las exposiciones más largas del Telescopio Espacial Hubble igualarán
Science (New York, N.Y.)
|April 13, 1990
Resumen
Simulaciones detalladas predicen los descubrimientos del Telescopio Espacial Hubble, incluyendo galaxias débiles y nuevas estrellas galácticas. Estas observaciones revelarán formas, tamaños y contenido de galaxias con detalles sin precedentes.
Área de la Ciencia:
- La astronomía y la astrofísica.
- Encuestas Cósmicas.
Sus antecedentes:
- El Telescopio Espacial Hubble (HST) ofrece capacidades sin precedentes para la observación del espacio profundo.
- Encuestas anteriores han proporcionado datos fundamentales sobre las poblaciones de galaxias y el contenido estelar.
Objetivo del estudio:
- Para simular y predecir el retorno científico de exposiciones de larga duración con el Telescopio Espacial Hubble.
- Para pronosticar el número y los tipos de objetos celestes detectables con diferentes tiempos de exposición.
Principales métodos:
- Realizar simulaciones detalladas de las observaciones del HST en campos profundos representativos.
- Analizar datos simulados para predecir el recuento y las características de los objetos en función de la duración de la exposición.
Principales resultados:
- Predicciones para el número y los tipos de objetos detectables con diferentes duraciones de exposición HST.
- Las simulaciones indican que el HST resolverá formas, tamaños y contenido de galaxias distantes y débiles.
Conclusiones:
- El Telescopio Espacial Hubble está listo para avanzar significativamente en nuestra comprensión de las galaxias distantes.
- Se pueden descubrir nuevas poblaciones de estrellas galácticas, ampliando nuestro conocimiento de la estructura galáctica.
Videos de Conceptos Relacionados
01:10Detection of Black Holes
Although black holes were theoretically postulated in the 1920s, they remained outside the domain of observational astronomy until the 1970s.
Their closest cousins are neutron stars, which are composed almost entirely of neutrons packed against each other, making them extremely dense. A neutron star has the same mass as the Sun but its diameter is only a few kilometers. Therefore, the escape velocity from their surface is close to the speed of light.
Not until the 1960s, when the first neutron...
Their closest cousins are neutron stars, which are composed almost entirely of neutrons packed against each other, making them extremely dense. A neutron star has the same mass as the Sun but its diameter is only a few kilometers. Therefore, the escape velocity from their surface is close to the speed of light.
Not until the 1960s, when the first neutron...
01:22Atomic 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.
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...
01:21Schwarzschild 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...
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...
01:16Flame Photometry: Lab
In a flame photometer, when a solution like potassium chloride is aspirated into the flame, the solvent evaporates, leaving behind dehydrated salt. This salt dissociates into free gaseous atoms in their ground state. Some of these atoms absorb energy from the flame, leading to their excitation. The excited atoms return to the ground state, emitting photons at characteristic wavelengths. Because only electronic transitions are involved, the resulting emission lines are very narrow. The intensity...
01:27Eccentricity of an Ellipse
An ellipse is a fundamental conic section defined by the constant sum of distances from any point on its curve to two fixed points, known as the foci. This geometric property can be physically demonstrated using a pencil, string, and two pins. By anchoring the string at both ends and maintaining it taut with a pencil, one can trace the outline of an ellipse.The shape and extent of the ellipse are determined by its eccentricity, e, defined as the ratio of the distance between the center and a...