Quasar HE 1013-2136 with tidal tails

This photograph shows an image of the Quasar HE 1013-2136 (center) and its surroundings sharpened with a computer algorithm to bring out more details in the immediate neighbourhood of the quasar. Now numerous details can be recognized within the two tidal tails, including various knotty structures. In particular, a very close companion galaxy at 20,000 light-years projected distance to the quasar can now be seen (at the 5 o''clock position) that may be in gravitational interaction with the quasar host galaxy. Quasar activity is believed to be triggered by such dramatic events.

Technical information: this image has been processed by applying the Lucy algorithm with 15 iterations. The field shown measures 33 x 33 arcsec 2, or 540,000 x 540,000 light-years 2 projected at the distance of the quasar; 1 pixel = 0.2 arcsec. North is up and East is left.

Crédito:

ESO

Sobre a imagem

Id:eso0122b
Tipo:Observação
Data de divulgação:31 de Maio de 2001
Notícias relacionadas:eso0122
Tamanho:780 x 779 px

Sobre o objeto

Nome:HE 1013-2136
Tipo:Early Universe : Galaxy : Activity : AGN : Quasar
Distância:z=0.785 (desvio para o vermelho)
Constellation:Hydra
Categoria:Quasars and Black Holes

Formatos de imagens

JPEG grande
184,7 KB

Papéis de parede

1024x768
205,8 KB
1280x1024
286,8 KB
1600x1200
350,3 KB
1920x1200
374,4 KB
2048x1536
476,9 KB

Coordenadas

Position (RA):10 15 52.42
Position (Dec):-21° 51' 56.32"
Field of view:0.63 x 0.63 arcminutes
Orientação:O norte está a 18.2° à direita da vertical

Cores e filtros

BandaComprimento de ondaTelescópio
Infravermelho
I
768 nmVery Large Telescope
FORS2

Notas: The is a version of the image eso0122a, which has been further sharpened by means of image processing software (the Lucy algorithm).