Una fuente galáctica
Esta imagen de la semana, tomada con el Very Large Telescope (VLT) de ESO, capta la evolución de la galaxia NGC 4383 de una manera curiosa. El gas fluye desde su núcleo a una velocidad asombrosa, escapando de la galaxia a velocidades medias de más de 200 km/s y hasta 300 km/s. Esta misteriosa erupción de gas se debe a un único motivo: la formación de estrellas.
En el centro de esta galaxia hay una gran cantidad de estrellas naciendo. Las más masivas pierden masa a lo largo de su vida a través de fuertes vientos y terminan muriendo en violentas explosiones de supernovas. Los vientos estelares y las supernovas expulsan parte de la reserva de gas de la galaxia: los filamentos rojos brillantes que se ven en esta imagen muestran gas de hidrógeno lanzada a, al menos, 20.000 años luz de distancia de la galaxia. Dado que este gas es arrastrado lejos del núcleo galáctico en lugar de permanecer para formar la próxima generación de estrellas, este proceso regula la velocidad a la que se pueden formar estrellas en esta galaxia.
Un nuevo estudio dirigido por Adam Watts, del nodo del Centro Internacional de Investigación de Radioastronomía de la Universidad de Australia Occidental, utilizó el instrumento Multi Unit Spectroscopic Explorer (MUSE), del VLT, para estudiar esta intrigante galaxia. MUSE permitió al equipo mapear la composición química y el movimiento de este vasto flujo estelar con gran detalle, proporcionando información sobre los mecanismos que crearon la impactante expulsión de materia que se ve en esta imagen.
Enlaces:
Crédito:ESO/A. Watts et al.
Sobre la imagen
| Identificador: | potw2417a |
| Idioma: | es |
| Tipo: | Observación |
| Fecha de publicación: | 22 de Abril de 2024 a las 02:00 |
| Tamaño: | 2268 x 2072 px |
Sobre el objeto
| Nombre: | NGC 4383 |
| Tipo: | Milky Way : Galaxy : Type : Spiral |
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