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Updated: Jul 11, 2026

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Investigation of Early Plasma Evolution Induced by Ultrashort Laser Pulses
Published on: July 2, 2012
Una brillante ráfaga de radio de milisegundos de origen extragaláctico
D R Lorimer1, M Bailes, M A McLaughlin
1Department of Physics, West Virginia University, Morgantown, WV 26506, USA. duncan.lorimer@mail.wvu.edu
Resumen
Los astrónomos detectaron una breve y poderosa ráfaga de radio desde el espacio profundo. Este evento singular, posiblemente una supernova, podría ayudar a sondear el universo.
Área de la Ciencia:
- La radioastronomía es la radioastronomía.
- Cosmología Cosmología.
- La astrofísica es la astrofísica.
Sus antecedentes:
- Las encuestas de púlsares permiten el monitoreo del cielo de radio para eventos transitorios de milisegundos de duración.
- Los eventos impulsivos parecidos a explosiones ofrecen una visión única de los fenómenos cósmicos.
Objetivo del estudio:
- Para analizar los datos de la encuesta de archivo para los eventos de ráfagas de radio transitorias.
- Para caracterizar las propiedades y el origen potencial de una ráfaga dispersa detectada.
Principales métodos:
- Análisis de los archivos de datos de radio encuestas.
- Observaciones de seguimiento para buscar ráfagas repetidas.
Principales resultados:
- Se detectó un estallido disperso de 30 jansky, de menos de 5 milisegundos de duración. fue detectado.
- Las propiedades del estallido sugieren que no está asociado con la Vía Láctea o la Pequeña Nube de Magallanes.
- Se estima que el estallido está a menos de 1 gigaparsec de distancia.
- No se detectaron más ráfagas durante 90 horas de observaciones adicionales, lo que indica un evento singular.
Conclusiones:
- La explosión detectada fue probablemente un evento astrofísico singular, como una supernova o la coalescencia de objetos relativistas.
- Cientos de eventos transitorios similares pueden ocurrir diariamente.
- La detección de tales eventos podría servir como valiosas sondas cosmológicas.
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