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.
Crediti:ESO
A proposito dell'immagine
Identificazione: | eso0946b |
Tipo: | Osservazione |
Data di pubblicazione: | 30 Novembre 2009 |
Notizie relative: | eso0946 |
Dimensione: | 331 x 331 px |
A proposito delll'oggetto
Nome: | HE0450-2958 |
Tipo: | Local Universe : Galaxy : Activity : AGN : Quasar |
Distanza: | z=0.286 (redshift (spostamento verso il rosso)) |
Constellation: | Caelum |
Categoria: | Quasars and Black Holes |
Formati delle immagini
Coordinate
Position (RA): | 4 52 30.10 |
Position (Dec): | -29° 53' 35.57" |
Field of view: | 0.10 x 0.10 arcminutes |
Orientazione: | Il Nord è a 1.8° a destra della verticale |
Colori e filtri
Banda | Lunghezza d'onda | Telescopio |
---|---|---|
Infrarosso Mid-IR | Very Large Telescope VISIR | |
Ottico V | 606 nm | Hubble Space Telescope ACS |