Can I read Different generations of HMXBs: clues about their formation efficiency from Magellanic Clouds studies on EtoBox?

Different generations of HMXBs: clues about their formation efficiency from Magellanic Clouds studies by Antoniou, Vallia; Zezas, Andreas; Drake, Jeremy J.; Badenes, Carles; Haberl, Frank; Hong, Jaesub; Plucinsky, Paul P.; Team, the SMC XVP Collaboration is a scholarly article available to read on EtoBox.

What is Different generations of HMXBs: clues about their formation efficiency from Magellanic Clouds studies about?

Nearby star-forming galaxies offer a unique environment to study the populations of young ($<$100 Myr) accreting binaries. These systems are tracers of past populations of massive stars that heavily affect their immediate environment and parent galaxies. Using a Chandra X-ray Visionary program, we investigate the young neutron-star binary population in the low metallicity of the Small Magellanic Cloud (SMC) by reaching quiescent X-ray luminosity levels ($\sim$few times $10^{32}$ erg/s). We present the first measurement of the formation efficiency of high-mass X-ray binaries (HMXBs) as a function of the age of their parent stellar populations by using 3 indicators: the number ratio of HMXBs to OB stars, to the SFR, and to the stellar mass produced during the specific star-formation burst they are associated with. In all cases, we find that the HMXB formation efficiency increases as a function of time up to $\sim$40-60 Myr, and then gradually decreases.

Author

Antoniou, Vallia; Zezas, Andreas; Drake, Jeremy J.; Badenes, Carles; Haberl, Frank; Hong, Jaesub; Plucinsky, Paul P.; Team, the SMC XVP Collaboration

Published

2018

Language

EN