Bound orbits around charged black strings

A. S. Habibina, H. S. Ramadhan

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


We study the geodesics of 5d Reissner–Nordstrom and nonsingular black strings, and establish a rational bound orbit taxonomy for both massive as well as null test particles. For the timelike case, test particles with high energy (that would have made them plunge into or scatter off a black hole) could still form bound orbits around the black strings. We calculate the accumulated angles of the corresponding radial periods and show that they are higher than their 4d counterparts. For the null case, we found the existence of stable null orbits outside their respective horizons, which do not exist in the four dimensions except at their extremal limit.

Original languageEnglish
Article number169169
JournalAnnals of Physics
Publication statusPublished - Jan 2023


  • Black strings
  • Photon bound orbits
  • Rational taxonomy


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