LOFAR, "deep field" 7/04/2021 : Le ciel en onde métriques

[Chris277 594]

Bonjour les amis,

Grace à un tweet et à ce fil d'actualité :

https://www.msn.com/fr-fr/actualite/technologie-et-sciences/le-radiotélescope-lofar-révèle-des-dizaines-de-milliers-de-galaxies/ar-BB1fqL9Q?ocid=msedgntp

Il y a donc 2 jours, l'équipe LOFAR a partagé leur deep field,  aboutissement de 164h de pose en basses fréquences :

https://www.astron.nl/ultra-sensitive-radio-images-reveal-thousands-of-star-forming-galaxies-in-early-universe/

"The image above shows the deepest LOFAR image ever made, in the region of sky known as ‘Elais-N1’, which is one of the three fields studied as part of this deep radio survey. The image arises from a single LOFAR pointing observed repeatedly for a total of 164 hours. Over 80,000 radio sources are detected; this includes some spectacular large-scale emission arising from massive black holes, but most sources are distant galaxies like the Milky Way, forming their stars. Credit: Philip Best & Jose Sabater, University of Edinburgh"

 

Christophe

 

 

Modifié 9 avril 2021 par Chris277