The High Mass X-ray binaries in star-forming galaxies

M. Celeste Artale, Nicola Giacobbo, Michela Mapelli, Paolo Esposito

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


The high mass X-ray binaries (HMXBs) provide an exciting framework to investigate the evolution of massive stars and the processes behind binary evolution. HMXBs have shown to be good tracers of recent star formation in galaxies and might be important feedback sources at early stages of the Universe. Furthermore, HMXBs are likely the progenitors of gravitational wave sources (BH-BH or BH-NS binaries that may merge producing gravitational waves). In this work, we investigate the nature and properties of HMXB population in star-forming galaxies. We combine the results from the population synthesis model MOBSE (Giacobbo & Mapelli 2018a) together with galaxy catalogs from EAGLE simulation (Schaye et al. 2015). Therefore, this method describes the HMXBs within their host galaxies in a self-consistent way. We compute the X-ray luminosity function (XLF) of HMXBs in star-forming galaxies, showing that this methodology matches the main features of the observed XLF.

Original languageEnglish
Pages (from-to)332-336
Number of pages5
JournalProceedings of the International Astronomical Union
Publication statusAccepted/In press - 2019
Externally publishedYes


  • galaxies: Evolution
  • galaxies: Stellar content
  • X-rays: Binaries

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science


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