About me

My doctoral research at the Institut d'Astrophysique de Paris focused on the nature of the dark matter and more particularly on the inconsistency of inner DM density profiles in dwarf galaxies, known as the cusp-core problem. I perform simulations with the high performance collisionless N-body code, Gothic. This gravitational octree code runs entirely on GPU with adaptive time steps. My high resolution approach is the pathway to high resolution that is far beyond that of any cosmological simulation.

My work on globular clusters will be also pursued in the context of the Laser Interferometer Space Antenna (LISA) mission. Since January 2019, I am involved in a LISA working group with the primary motivation to explore the existence of intermediate massive black holes in globular clusters.

Astro news

Research interests

  • Globular clusters - Gaia DR2 Data
  • Cusp-core problem - Diversity problem
  • Primordial black hole dynamics
  • Galaxy mergers
  • Alternative dark matter theories


[6]"A dark matter core in M31" P. Boldrini, R. Mohayaee, J. Silk, MNRAS (2020), submitted

[5]"The origin of the black hole offset in M31" P. Boldrini, MNRAS Letters, L137B (2020)

[4]"Subhalo sinking and off-center IMBHs in dwarf galaxies" P. Boldrini, R. Mohayaee, J. Silk, MNRAS Letters, 495, L12, (2020)

[3]"Embedding globular clusters in dark matter minihalos solves the cusp-core and timing problems in the Fornax dwarf galaxy" P. Boldrini, R. Mohayaee, J. Silk, MNRAS, 492, 3169 (2020)

[2]"Primordial black holes as dark matter: cusp-to-core transition in low-mass dwarf galaxies" P. Boldrini, Y. Miki, A. Y. Wagner, R. Mohayaee, J. Silk and A. Arbey MNRAS, 492, 5218 (2020)

[1]"Fornax globular cluster distributions: implications for the cusp-core problem" P. Boldrini, R. Mohayaee, J. Silk, MNRAS, 485, 2546, (2019)

[0]"Does Fornax have a cored halo? Implications for the nature of dark matter" P. Boldrini, R. Mohayaee, J. Silk, not published


Address: 98bis Boulevard Arago • Paris, 75014 • France
Phone: (+33) 0144328030
Email: boldrini@iap.fr
Linkedin: Pierre Boldrini