The Quasar 0957+561 was taken up with the Hubble Space Telescope, with a field full of distant galaxies, including the Galaxy Ygkow G1 of lens (yellow, between the two images of Quasar). Credit: STSCI
Takeaway Keyway:
- The Quasar are the bright centers of young galaxies fueled by supermassichi black holes.
- Most of the Quasar are very distant and weak, making them difficult to observe.
- A quasar, 0957+561, is slowly gravitually, which appears as a double image.
- Observing this slow quasar requires a large telescope and dark skies.
The Quasar were a mystery when they discovered for the first time in the early 1960s. They are extremely distant and star objects that emit huge quantities of energy. Years later, astronomers understood that the Quasar are the extremely energetic centers of young galaxies, fueled by supermassichi black holes. The fact that they are mostly young (the black holes generally silent later in time) means that most quasar are very distant, and therefore weak and really difficult to observe.
They are also difficult to find, since most appears as weak stars. But some objects occur like couples in the sky and make themselves a little easier to find. This is the case of a Galaxy-Quasar couple in Ursa Major, which consists of the Galaxy NGC 3079 of Edge-on, a prohibited spiral that lies 50 million light years of distance and a neighbor with Quasar. NGC 3079 is unusual as it contains a supermassive black hole of about 2.4 million solar masses and a “central superbabost” which extends about 3,500 light years above the galaxy album, considered caused by a Starburst event. The galaxy shines with magnitude 11.5 and extends 7.9 ‘of 1.4’.
Near this galaxy there is a real pleasure: the double Quasar 0957+561, discovered in 1979, the first quasar with lenses gravitationally to be found. It is located about 8.7 billion light years away and is linked by an intermediate galaxy, YGKOW G1. The twin images of the Bagliore Quasar weakly at the magnitude 16.7 and were taken up by dedicated and skilled astronomers of the courtyard.
Astroimagers may want to put this strange object on their destination list. The Quasar is located at 10h01m21s, +55 ° 53’57 “(Equinox 2000.0).
If you are an image and you want a real challenge, try chasing this distant quasar. If you are an observer with a very large and optically capable telescope and a dark sky, you could also follow him. Good luck!
