Kolb, E. and Turner, M.S. (1984) Limits from the Soft X-Ray Background on the Temperature of Old Neutron Stars and on the Flux of Superheavy Magnetic Monopoles. Astrophysical Journal, 286, 702-710.
https://ui.adsabs.harvard.edu/abs/1984ApJ...286..702K/abstract
https://doi.org/10.1086/162645

has been cited by the following article:

• TITLE: Why Don’t Cold White Dwarfs Exist?

  AUTHORS: Qiuhe Peng, Jingjing Liu

  KEYWORDS: White Dwarfs, The Energy Source, Magnetic Monopoles

  JOURNAL NAME: Journal of High Energy Physics, Gravitation and Cosmology, Vol.9 No.2, April 7, 2023

  ABSTRACT: Why no late type M and much later type N white dwarfs with surface temperatures less than 3000 K had ever been observed? What are the heat sources of these later type white dwarfs? In this paper, we find that the energy source of white dwarfs is the nucleons decay catalyzed by magnetic monopoles.