X-RAY BINARY EVOLUTION ACROSS COSMIC TIME

By Tassos Fragos, B. Lehmer, M. Tremmel, P. Tzanavaris, A. Basu-Zych, Krzysztof Belczynski, A. Hornschemeier, L. Jenkins, Vicky Kalogera, A. Ptak and 1 more. 2012

170 citations recorded by the source corpus.

High-redshift galaxies permit the study of the formation and evolution of X-ray binary (XRB) populations on cosmological timescales, probing a wide range of metallicities and star formation rates (SFRs). In this paper, we present results from a large-scale population synthesis study that models the XRB populations from the first galaxies of the universe until today. We use as input to our modeling the Millennium II cosmological simulation and the updated semi-analytic galaxy catalog by Guo et al. to self-consistently account for the star formation history and metallicity evolution of the universe. Our modeling, which is constrained by the observed X-ray properties of local galaxies, gives predictions about the global scaling of emission from XRB populations with properties such as SFR and stellar mass, and the evolution of these relations with redshift. Our simulations show that the X-ray luminosity density (X-ray luminosity per unit volume) from XRBs in our universe today is dominated by low-mass XRBs, and it is only at z ≳ 2.5 that high-mass XRBs become dominant. We also find that there is a delay of ∼1.1 Gyr between the peak of X-ray emissivity from low-mass XRBs (at z ∼ 2.1) and the peak of SFR density (at z ∼ 3.1). The peak of the X-ray luminosity from high-mass XRBs (at z ∼ 3.9) happens ∼0.8 Gyr before the peak of the SFR density, which is due to the metallicity evolution of the universe.

Subfields: Astronomy and Astrophysics, Atmospheric Science

View Paper: https://www.semanticscholar.org/paper/3bb0193d5d970b297c7c40ccb5abe0e615b46753

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Astronomy and Astrophysics

1. J. Steiner
2. Ramesh Narayan
3. J. E. McClintock
4. B. Greig
5. Tassos Fragos
6. P. Madau
7. N. Gillet
8. Jaehong Park

In Atmospheric Science

1. J. Steiner
2. Ramesh Narayan
3. J. E. McClintock
4. P. Madau

Citations in the corpus

• Black Hole Spin via Continuum Fitting and the Role of Spin in Powering Transient Jets (2013, background): “The transients are, on average, likely Gyrs old (White & Ghosh 1998; Fragos et al. 2013).”
• Radiation Backgrounds at Cosmic Dawn: X-Rays from Compact Binaries (2016, methodology): “Compared to Model 245, the maximum likelihood model adopted in Fragos et al. (2013b), Model 265 assumes a flatter IMF (with high-mass slope equal to −2.35, instead of the −2.7 of Model 245) and allows for the possibility of a successful common envelope ejection when the donor star is in the…”
• Inferring the astrophysics of reionization and cosmic dawn from galaxy luminosity functions and the 21-cm signal (2018, methodology): “Our new value is motivated by the theoretical HMXB models of Fragos et al. (2013), whereas previously we used the empirical scalings of Mineo et al. (2012) obtained from local star forming galaxies.”