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Populations of (bright) compact sources in galaxies

Populations of (bright) compact sources in galaxies. Marat Gilfanov MPA, Garching. Hans-Jakob Grimm (CfA) Igor Prokopenko (IKI) Pavel Shtykovskiy (IKI/MPA) Rashid Sunyaev (MPA/IKI) Rasmus Voss (MPA, MPE) Akos Bogdan (MPA). Binary evolution. wind accretion or Roche lobe overflow.

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Populations of (bright) compact sources in galaxies

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  1. Populations of (bright) compact sources in galaxies Marat Gilfanov MPA, Garching

  2. Hans-Jakob Grimm (CfA) Igor Prokopenko (IKI) Pavel Shtykovskiy (IKI/MPA) Rashid Sunyaev (MPA/IKI) Rasmus Voss (MPA, MPE) Akos Bogdan (MPA) X-rays from nearby galaxies, 5/9/2007

  3. Binary evolution wind accretion or Roche lobe overflow “primordial” binary MS+MS HMXB stellar evolution massive star: stellar evolution ~2-40 Myrs 50 Myrs Roche lobe overflow LMXB SN explosion low-mass star: stellar evolution or orbital decay BH/NS+MS 1-10 Gyrs X-rays from nearby galaxies, 5/9/2007

  4. Lx-mass relation for LMXBs total X-ray luminosity number of sources X-rays from nearby galaxies, 5/9/2007

  5. Lx-SFR relation for HMXBs number of sources total X-ray luminosity Nx~SFR Lx~SFR Non-physical effect of statistics of small numbers Ltot=Lk X-rays from nearby galaxies, 5/9/2007

  6. Total luminosity of XRBs Lx ~ 2•1039SFR 8•1038M* Nx(Lx>1037) ~ 7SFR 10M* [SFR]= M/yr [M*]=1010 M X-rays from nearby galaxies, 5/9/2007

  7. Luminosity functions X-rays from nearby galaxies, 5/9/2007

  8. HMXBs X-ray luminosity functions: SFR~0.15-7 Msun/yr X-rays from nearby galaxies, 5/9/2007

  9. HMXBs X-ray luminosity functions scaled to the same SFR SFR~0.15-7 Msun/yr X-rays from nearby galaxies, 5/9/2007

  10. HMXB & LMXB luminosity functions • different shapes - different accretion regimes: • HMXB - wind accretion • LMXB - Roche-lobe overflow • “true” ULXs are associated with star-formation • no features at LEdd for NS - ??? X-rays from nearby galaxies, 5/9/2007

  11. HMXB XLF & IMF slope accretion of radiation pressure driven stellar wind X-rays from nearby galaxies, 5/9/2007

  12. LMXB XLF gravitational braking in longer Porb systems magnetic braking(Sco X-1 etc.) Evolved companionand/or Gravitational braking in ultracompact binaries NS+WD, Porb~10 min short life-time problem King, Bildsten, Postnov and others X-rays from nearby galaxies, 5/9/2007

  13. Faint sources (old populations) number of sources contribution to total luminosity ~3% Sazonov et al., 2006Revnivtsev et al., 2006 X-rays from nearby galaxies, 5/9/2007

  14. How abundant are X-ray binaries?Nx(Lx>1037) ~ 7SFR 10M* X-rays from nearby galaxies, 5/9/2007

  15. Abundance of HMXBs number of HMXBs observed at any given time: duration of HMXB phase number of HMXB birth rate of compact objects HMXB fraction X-rays from nearby galaxies, 5/9/2007

  16. Abundance of HMXBs number of HMXBs observed at any given time : Salpeter IMF: Nx-SFR relation: X-rays from nearby galaxies, 5/9/2007

  17. Abundance of HMXBs O,B binaries: HMXB~104-105 yrs X/Be binaries: HMXB~105-106 (?) yrs X-rays from nearby galaxies, 5/9/2007

  18. Abundance of LMXBs Per 1010 Msun: Salpeter IMF: ~7.4107 BH & NS LMXB-Mstar relation: NLMXB(LX>1035)~50 LMXBs X-rays from nearby galaxies, 5/9/2007

  19. Time dependence of XRB populations LX , NX HMXB LMXB has been measured (Pavel Shtykovsky’s talk) 50-100 Myr >1 Gyr log(time) SF event X-rays from nearby galaxies, 5/9/2007

  20. HMXBs and the spiral structure X-ray sources in M51 (Chandra) distance to spiral arms HST image of M51 stars Beckwith, 2005 (low stat. significance) X-rays from nearby galaxies, 5/9/2007

  21. X-ray binaries and CXB X-rays from nearby galaxies, 5/9/2007

  22. X-ray binaries and CXB Cosmic star formation stellar mass (from Nagamine et al., 2006) X-rays from nearby galaxies, 5/9/2007

  23. X-ray binaries and CXB <zHMXB> ~ 1.5 <zLMXB> ~ 0.5 2-10 keV: HMXB ~7-10% LMXB <1-2% X-rays from nearby galaxies, 5/9/2007

  24. HMXBs & unresolved part of CXB HMXB contribution can explain ~50% of the unresolved part of the CXB (via contribution of faint normal galaxies) X-rays from nearby galaxies, 5/9/2007

  25. LMXBs: primordial and dynamically formed(talk of Rasmus Voss for details) X-rays from nearby galaxies, 5/9/2007

  26. LMXBs in M31 primordial total tidal capture in the bulge GC X-rays from nearby galaxies, 5/9/2007

  27. LMXBs in M31 X-rays from nearby galaxies, 5/9/2007

  28. LMXBs in M31 luminosity functions X-rays from nearby galaxies, 5/9/2007

  29. Andromeda galaxy (M31) Images: 5 X-rays from nearby galaxies, 5/9/2007

  30. The End X-rays from nearby galaxies, 5/9/2007

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