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.
Oikeudet:ESO
Kuvasta
Tunnistus: | eso0946b |
Tyyppi: | Havainto |
Julkaisupäivä: | 30. marraskuuta 2009 |
Vastaavat julkaisut: | eso0946 |
Koko: | 331 x 331 px |
Kohteesta
Nimi: | HE0450-2958 |
Tyyppi: | Local Universe : Galaxy : Activity : AGN : Quasar |
Etäisyys: | z=0.286 (punasiirtymä) |
Constellation: | Caelum |
Kategoria: | Quasars and Black Holes |
Taustakuvat
Koordinaatit
Position (RA): | 4 52 30.10 |
Position (Dec): | -29° 53' 35.57" |
Field of view: | 0.10 x 0.10 arcminutes |
Suuntaus: | Pohjoinen on 1.8° oikea pystysuuntaan nähden |
Värit ja suotimet
Kaista | Aallonpituus | Teleskooppi |
---|---|---|
Infrapuna Mid-IR | Very Large Telescope VISIR | |
Optinen V | 606 nm | Hubble Space Telescope ACS |