Revisiting the quasar without a home

Colour composite image of a peculiar object, the nearby quasar HE0450-2958, which is the only one for which no sign of a host galaxy has yet been detected. A team of astronomers has identified black hole jets as a possible driver of galaxy formation, which may also represent the long-sought missing link to understanding why the mass of black holes is larger in galaxies that contain more stars. The mid-infrared part of this image was obtained with the VISIR instrument on ESO’s Very Large Telescope, while the visible image comes courtesy of the Hubble Space Telescope and the Advanced Camera for Surveys.

Crédit:

ESO

À propos de l'image

Identification:eso0946b
Type:Observation
Date de publication:30 novembre 2009
Communiqués de presse en rapport:eso0946
Taille:331 x 331 px

À propos de l'objet

Nom:HE0450-2958
Type:Local Universe : Galaxy : Activity : AGN : Quasar
Distance:z=0.286 (redshift)
Constellation:Caelum
Catégorie:Quasars and Black Holes

Formats des images

Grand JPEG
47,5 Kio
JPEG taille écran
143,3 Kio

Fonds d'écran

1024x768
149,5 Kio
1280x1024
206,8 Kio
1600x1200
257,9 Kio
1920x1200
277,7 Kio
2048x1536
353,2 Kio

Coordinates

Position (RA):4 52 30.10
Position (Dec):-29° 53' 35.57"
Field of view:0.10 x 0.10 arcminutes
Orientation:North is 1.8° right of vertical

Couleurs & filtres

DomaineLongueur d'ondeTélescope
Infrarouge
Mid-IR
Very Large Telescope
VISIR
Visible
V
606 nmHubble Space Telescope
ACS

 

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