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Earth, Moon, and Planets

, Volume 122, Issue 3–4, pp 115–119 | Cite as

Primordial Planets Predominantly of Dark Matter

  • C. Sivaram
  • Kenath ArunEmail author
  • O. V. Kiren
Article

Abstract

Cosmic structure formation is thought to occur as a bottom-up scenario, i.e. the lightest objects would have formed first. It has been suggested that the earliest structures to form could have been primordial planets. Here we propose the possibility of formation of primordial planets at high redshifts composed predominantly of dark matter (DM) particles, with planetary masses ranging from Neptune mass to asteroid mass. Most of these primordial DM planets could be free floating without being attached to a host star and a substantial fraction could be present in the halo contributing to the DM. Here we suggest that the flux of DM particles could be significantly reduced as substantial number of DM particles are now trapped in such objects, perhaps accounting for the negative results seen so far in the ongoing DM detection experiments.

Keywords

Dark matter Primordial planets DM planets 

Notes

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Copyright information

© Springer Nature B.V. 2019

Authors and Affiliations

  1. 1.Indian Institute of AstrophysicsBangaloreIndia
  2. 2.Christ Junior CollegeBangaloreIndia
  3. 3.St. Josephs Indian Composite PU CollegeBangaloreIndia

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