The quasar without a home: HE0450-2958

(Left) HST image of the z=0.285 quasar HE0450-2958. No obvious host galaxy centred on the quasar is seen. Only a strongly disturbed and star forming companion galaxy is seen near the top of the image. (Right) Same image shown after applying an efficient image sharpening method known as MCS-deconvolution. In contrast to the usual cases, as the ones shown in ESO Press Photo eso0529, the quasar is not situated at the centre of an extended host galaxy, but on the edge of a compact structure, whose spectra (see ESO Press Photo eso0529) show it to be composed of gas ionised by the quasar radiation. This gas may have been captured through a collision with the star-forming galaxy. The star indicated on the figure is a nearby galactic star seen by chance in the field of view.

Të drejtat:

HST

Rreth fotografisë

Id:eso0529b
Tipi:Ngjitje
Data e Publikimit:14 Shtator 2005
Publikime të ngjashme:eso0529
Përmasat:3265 x 1464 px

Rreth objektit

Emri:HE0450-2958
Tipi:Early Universe : Galaxy : Activity : AGN : Quasar
Distanca:z=0.285 (zhvendosja e kuqe)
Kategori:Cosmology
Quasars and Black Holes

Formate Fotografish

JPEG i madh
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Ngjyra & filtera

BandaTeleskopi
OptikVery Large Telescope
OptikHubble Space Telescope

 

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