Two quasars with their host galaxy

Two examples of quasars from the sample studied by the astronomers, where the host galaxy is obvious. In each case, the quasar is the bright central spot. The host of HE1239-2426 (left), a z=0.082 quasar, displays large spiral arms, while the host of HE1503+0228 (right), having a redshift of 0.135, is more fuzzy and shows only hints of spiral arms. Although these particular objects are rather close to us and constitute therefore easy targets, their host would still be perfectly visible at much higher redshift, including at distances as large as the one of HE0450-2958 (z=0.285). The observations were done with the ACS camera on the HST.

Crédit:

HST

À propos de l'image

Identification:eso0529a
Type:Observation
Date de publication:14 septembre 2005
Communiqués de presse en rapport:eso0529
Taille:3271 x 1409 px

À propos de l'objet

Nom:HE1239-2426, HE1503+0228
Type:Early Universe : Galaxy : Activity : AGN : Quasar
Catégorie:Quasars and Black Holes

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DomaineTélescope
Hubble Space Telescope
ACS

 

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