Formation of spirals, and interaction of spirals at the galactic centre

The centre of the Milky Way galaxy is the closest place to study the activities at the center of a galaxy. The studies at different wavelengths have revealed the presence of mini-spiral structures at descending scales inside the galactic centre. At the heart of the spiral formations, one can see the interactions of two spirals. Moreover, ejections from the core forming two lobes seem to characterize the structures at the core. These lobes arrange as shells inside shells, which follow a fractal hierarchy. The spiral interactions forming larger spirals, which form even larger spirals and so on seem to work behind the core dynamics.

The spiral structure of the Milky way galaxy. The size is about 100 thousand light years.

The spiral structure of the size of 100 light years: The enhanced images is created from the x-ray, ir and radio data.

The spiral of the size of 10 light years

Interacting spirals forming a double lobed structure of the size of 2 light years

A spiral of the size of about 100 lightdays near the intense radio source SgrA*, which is believed to be the centre of the galaxy. The radio source is marked with two arrows.

Interaction of spirals generate the larger spiral which surrounds the galctic centre.

A double lobed structure of the size of about 30 lightdays, which is similar to the structure seen at 2 lightyears, lie at the immediate south-east of the SgrA*. It may imply that the true core of the galaxy could be at a different place than at SgrA*.

See what is there at the place where a black-hole should exist