Even if it's the closest and brightest
Seyfert galaxy, we don't see M77's core as extraordinarily bright as a quasar's for two reasons, though: Its black hole isn't consuming enough matter, and its beamed outflow jet isn't pointed directly at us.
This object lies more than one billion light years away in the direction of the constellation Coma Berenices, and is a
Seyfert galaxy, characterised by a very bright AGN resulting from the presence of the massive black hole at its nucleus.
It is known as a type II
Seyfert galaxy, characterised by its dazzling nucleus.
E-VLBI was recently used to observe a
Seyfert galaxy emitting powerful gamma rays thought only to originate from the most powerful type of black holes.
Dr Hewitt finally pointed out two deep sky objects to look for near Jupiter, both in Cetus: NGC 246, a planetary nebula, and Messier 77, the brightest
Seyfert galaxy, which contains the Cetus A radio source, thought to be a supermassive black hole.
Scientists classify NGC 4945 as a
Seyfert galaxy after the American astronomer Carl K.
General topics include optical variability, including long-term optical quasar variability, IR variability, including the correlation of near infrared and optical variability on NGC 4151, x-ray variability, including the relationship between optical and x-ray variability in Seyfert galaxies, radio variability, including 3C 120 and the disk-jet connection, blazars, including photometric and polarimetric observations of BL Lac objects in the optical region, including flows and shocks in
Seyfert Galaxy nuclei and general considerations, including closing thoughts on AGN variability by the conference chair.
Now, for a taste of winter galaxy hunting, dive deep into the celestial sea to fish out M77, a 9th-magnitude
Seyfert galaxy conveniently located 1[degrees] southeast of 4th-magnitude Delta ([delta]) Ceti.
A
Seyfert galaxy,also photographed by the Liverpool Telescope last week, is thought to contain a black hole which produces vast amounts of energy as it swallows surrounding stars, dust and gas.
NGC 5548 is a
Seyfert galaxy, one of a class that harbors what astronomers call an "active galactic nucleus." Such a galaxy contains an extremely compact object--possibly a massive black hole--that feeds on the rest of the galaxy.