Esta imagen destaca varias características interesantes de la casiopeia remanente de Supernova A como se ve con la NIRCAM de Webb (cámara de infrarrojo cercano):
- La resolución exquisita de Nircam es capaz de detectar pequeños nudos de gas, compuestos de azufre, oxígeno, argón y náonos de la estrella. Algunos filamentos de los escombros son demasiado pequeños para ser resueltos incluso por Webb, lo que significa que son comparables o menos de 10 mil millones de millas de ancho (alrededor de 100 unidades astronómicas). Los investigadores dicen que esto representa cómo la estrella se rompió como el vidrio cuando explotó.
- Los agujeros circulares visibles en la imagen Miri dentro del monstruo verde, un bucle de luz verde en la cavidad interna de Cas A, se describen ligeramente en la emisión blanca y púrpura en la imagen nircam: esto representa el gas ionizado. Los investigadores creen que esto se debe a los escombros de supernova que empujan y esculpen gas de gas que dejó la estrella antes de que explotara.
- Esta es una de las pocas luces de luz visibles en la imagen de Nircam de Cas A. Un eco de luz ocurre cuando la luz de la estrella ha alcanzado la explosión de la estrella, y está calentando, lo que se enfría a medida que se enfría a la luz de la estrella. Un eco de luz particularmente intrincado y grande, apodado Baby Cas A por investigadores. En realidad se encuentra unos 170 años luz detrás del remanente de supernova.
créditos
Image
nasa, ESA, CSA, STSCI, Danny Milisavljevic (Universidad de Purdue), ilse de Looze (Ugent), Temperano de té (TEMIM PRINCITON (PRINCETON TEMIM)
| About The Object | |
|---|---|
| Object Name | Cassiopeia A; SNR G111.7-02.1 |
| Object Description | Supernova remnant |
| R.A. Position | 23:23:24.00 |
| Dec. Position | +58:48:54.00 |
| Constellation | Cassiopeia |
| Distance | 11,090 light-years |
| Dimensions | Main image is about 5.8 arcminutes across (19 light-years). |
| About The Data | |
| Data Description | This image was created with Webb data from proposal: (D. Milisavljevic). |
| Instrument | NIRCam |
| Exposure Dates | 05 November 2022 |
| Filters | F162M, F356W, F444W |
| About The Image | |
| Color Info | These images are a composite of separate exposures acquired by the James Webb Space Telescope using the NIRCam instrument. Several filters were used to sample specific 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: Blue: F162M, Green: F356W, Red: F444W |
| 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. |
