Planet-Mass Objects In The Extragalactic Systems

A University of Oklahoma and its research group has currently reported the detection of extragalactic planet-mass objects in number second and third galaxy that is beyond the Milky Way and after the first ever detection in the year 2018. With some existing observational resources, it is somewhere impossible for directly detecting planet-mass objects that is beyond the Milky Way galaxy of ours and for measuring its rogue planetary population.
Members of the group have included Xinyu Dai who is associate professor in the Homer L. Dodge and Department of Physics and Astronomy and the OU College of Arts and Sciences, with Ph.D. student Saloni Bhatiani and also former postdoctoral researcher Eduardo Guerras.
Dai has said that the detection of planet-mass objects, either of free-floating planets or primordial black holes and these are extremely valuable for modeling of certain stars/planets formation or early universe and even without the decomposing of the two populations and our limit on the primordial of black hole population have already a few orders of magnitude that are below previous limits in this mass range.
The research group has also identified a novel technique which uses quasar microlensing for probing the planet population within the distant extragalactic systems.

By: Prerana Sharma
Content: https://www.sciencedaily.com/releases/2019/12/191212095904.htm