La vista de infrarrojo medio de Webb de las galaxias de interacción ARP 142 parece cantar en colores primarios. The background of space is like a yawning darkness speckled with bright, multi-colored beads.
This image was taken by MIRI, the telescope’s Mid-Infrared Instrument, que los astrónomos usan para estudiar objetos más fríos y más antiguos, polvo y galaxias extremadamente distantes.
Aquí, el huevo aparece como un óvalo verde azulado excepcionalmente pequeño con capas de gasa. La luz de infrarrojo medio muestra predominantemente las estrellas más antiguas de la galaxia elíptica, que ha perdido o utilizado la mayor parte de su gas y polvo. Esta es la razón por la cual la vista es tan diferente de imagen combinada , que incluye luz en la luz al aire libre. relativamente sin cambios. The MIRI image shows all the gas and dust that has been distorted and stretched, as well as the smoke-like material, in blue, that includes carbon-containing molecules, known as Hidrocarburos aromáticos policíclicos .
A continuación, busque el PGC 1237172 catalogado por la galaxia en la parte superior derecha: una línea tenue y nebulosa. Encuéntralo buscando la estrella azul brillante con pequeños picos de difracción colocados sobre la parte superior de su borde izquierdo. Esta galaxia casi desaparece en la luz de infrarrojo medio porque sus estrellas son muy jóvenes y la galaxia no está repleta de polvo.
ahora, escanea la imagen completa de izquierda a derecha para detectar galaxias distantes en el fondo. Los objetos rojos están encerrados en gruesas capas de polvo. Algunas son galaxias espirales y otras son galaxias más distantes que solo pueden detectarse como puntos o manchas. Las galaxias verdes están cargadas de polvo y están más lejos. Las galaxias más azules están más cerca. Íleendo cuidadosamente para ver si un punto azul tiene picos de difracción minúsculos: esas son estrellas, no galaxias.
| About The Object | |
|---|---|
| Object Name | Arp 142, NGC 2396/2397 |
| Object Description | Interacting Galaxies |
| R.A. Position | 09:37:43.09 |
| Dec. Position | 02:45:47.01 |
| Constellation | Hydra |
| Distance | 326 million light-years |
| Dimensions | Image is about 3.4 arcmin across (about 322,000 light-years) |
| About The Data | |
| Data Description | This image was created with Webb data from proposal: 6564 (M. Marin); Image Processing: Joseph DePasquale (STScI) |
| Instrument | MIRI |
| Exposure Dates | May 6, 2024 |
| Filters | F770W, F1000W, F1500W |
| About The Image | |
| Color Info | These images are a composite of separate exposures acquired by the James Webb Space Telescope using the MIRI instrument. Several filters were used to sample narrow and broad wavelength ranges. The color results from assigning different hues (colors) to each monochromatic (grayscale) image associated with an individual filter. In this case, the assigned colors are: Red: F1500W Green: F1000W Blue: F770W. |
| Compass Image |  |
| About The Object | |
|---|---|
| Object Name | A name or catalog number that astronomers use to identify an astronomical object. |
| Object Description | The type of astronomical object. |
| R.A. Position | Right ascension – analogous to longitude – is one component of an object's position. |
| Dec. Position | Declination – analogous to latitude – is one component of an object's position. |
| Constellation | One of 88 recognized regions of the celestial sphere in which the object appears. |
| Distance | The physical distance from Earth to the astronomical object. Distances within our solar system are usually measured in Astronomical Units (AU). Distances between stars are usually measured in light-years. Interstellar distances can also be measured in parsecs. |
| Dimensions | The physical size of the object or the apparent angle it subtends on the sky. |
| About The Data | |
| Data Description |
|
| Instrument | The science instrument used to produce the data. |
| Exposure Dates | The date(s) that the telescope made its observations and the total exposure time. |
| Filters | The camera filters that were used in the science observations. |
| About The Image | |
| Image Credit | The primary individuals and institutions responsible for the content. |
| Publication Date | The date and time the release content became public. |
| Color Info | A brief description of the methods used to convert telescope data into the color image being presented. |
| Orientation | The rotation of the image on the sky with respect to the north pole of the celestial sphere. |
