A scientific paper last year proposed the idea of cosmic string life-forms which could flourish within stars.
The basic idea is that cosmic strings,theoretical topological defects from the early universe could have survived to the current age. 1 dimensional strings of diameter less than an proton with immense densities comparable to the singularity of a black hole. Combined with magnetic monopoles they could create a network similar to DNA and possibly complex forms of life.
For my question I want to concentrate on the networks Cosmic strings can form with primordial black holes, specifically micro blackholes as this would fit the scale of a life-form or cosmic strings in a network with magnetic monopoles, as suggested in the paper. The scale of the string and beads (Bh or monopoles) network will be varying sizes from a 1 meter in height or width to hundreds of meters.
A cosmic string network could contain up to a kilometre of strings or more, given that a kilometre long cosmic string would have the same mass as the earth each network should have a very strong gravitational effect on light.
What would be the effect of the gravity from the strings on the surrounding background of space, assuming other stars or galaxies were behind it to be visually deformed?
In theory space-time around Cosmic strings will be conical, with the tip of the cone running along the line, I am not sure if this means it will appear cylindrical along the line from a distance?
For reference see the image below of how a network could appear, for my story I envision they could form any shape including that of other life-forms. My main concern is would the strings at close range (but in tension so their gravitational force means they do not collapse) visually have a collective gravitational field similar to one black hole of the same size as the collective network or would the visual effect on the background be individual warping around each string with some form of collective effect for strings close together?
image by Saranga Buwaneka Via https://www.behance.net/gallery/4271271/Cosmic-Strings