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Tracing the disk-halo interaction in late type galaxies by X-ray observations

Tracing the disk-halo interaction in late type galaxies by X-ray observations. Ralf-Jürgen Dettmar Astronomical Institute Ruhr-University Bochum. with

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Tracing the disk-halo interaction in late type galaxies by X-ray observations

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  1. Tracing the disk-halo interaction in late type galaxies by X-ray observations Ralf-Jürgen Dettmar Astronomical Institute Ruhr-University Bochum with Jörn Rossa, Ralph Tüllmann, Volker Heesen, Dieter Breitschwerdt, Michael Dahlem, Matthias Ehle, Wolfgang Piech, Rainer Beck, Marita Krause, Marian Soida, Marek Urbanik, Peter Kamphuis et al.

  2. our paradigm… from Reynolds in Scientific American X-rays from the disk-halo interface in spirals Ralf-Jürgen Dettmar @X-rays from Nearby Galaxies ESAC 6.9.2007

  3. X-rays from the disk-halo interface in spirals Ralf-Jürgen Dettmar @X-rays from Nearby Galaxies ESAC 6.9.2007

  4. X-rays from the disk-halo interface in spirals Ralf-Jürgen Dettmar @X-rays from Nearby Galaxies ESAC 6.9.2007

  5. Ferrara & McLow X-rays from the disk-halo interface in spirals Ralf-Jürgen Dettmar @X-rays from Nearby Galaxies ESAC 6.9.2007

  6. NGC 4631 Chandra Wang et al. NGC 4631 X-rays from the disk-halo interface in spirals Ralf-Jürgen Dettmar @X-rays from Nearby Galaxies ESAC 6.9.2007

  7. What controls the interstellar disk-halo1 connection ? we want to look at… • energy required • mass transfered • metals provided 1) Sometimes now also called ISM/IGM connection X-rays from the disk-halo interface in spirals Ralf-Jürgen Dettmar @X-rays from Nearby Galaxies ESAC 6.9.2007

  8. Halos have a multiphase medium: neutral (perhaps even molecular?) example: N891 total HI X-rays from the disk-halo interface in spirals Ralf-Jürgen Dettmar @X-rays from Nearby Galaxies ESAC 6.9.2007

  9. gaseous galactic halos of diffuse ionized gas (DIG) are easily observable in Ha NGC4700 (Rossa&Dettmar 2001) X-rays from the disk-halo interface in spirals Ralf-Jürgen Dettmar @X-rays from Nearby Galaxies ESAC 6.9.2007

  10. Larger sample of edge-on galaxies including objects with lower FIR luminosity X-rays from the disk-halo interface in spirals Ralf-Jürgen Dettmar @X-rays from Nearby Galaxies ESAC 6.9.2007

  11. Rossa & Dettmar (2003) X-rays from the disk-halo interface in spirals Ralf-Jürgen Dettmar @X-rays from Nearby Galaxies ESAC 6.9.2007

  12. NGC 7090 Dahlem & Ehle ATCA Rossa et al. ACS/HST X-rays from the disk-halo interface in spirals Ralf-Jürgen Dettmar @X-rays from Nearby Galaxies ESAC 6.9.2007

  13. a small survey of disk galaxies with XMM: (Tüllmann et al. 2006 A&A) X-rays from the disk-halo interface in spirals Ralf-Jürgen Dettmar @X-rays from Nearby Galaxies ESAC 6.9.2007

  14. NGC 4631 seen with XMM-Newton(Tüllmann, Dettmar et. al. 2006) X-rays from the disk-halo interface in spirals Ralf-Jürgen Dettmar @X-rays from Nearby Galaxies ESAC 6.9.2007

  15. X-ray luminosity – SFR correlation Tüllmann et al. A&A 2006 a,b from XMM-Newton X-rays from the disk-halo interface in spirals Ralf-Jürgen Dettmar @X-rays from Nearby Galaxies ESAC 6.9.2007

  16. X-rays from the disk-halo interface in spirals Ralf-Jürgen Dettmar @X-rays from Nearby Galaxies ESAC 6.9.2007

  17. X-rays from the disk-halo interface in spirals Ralf-Jürgen Dettmar @X-rays from Nearby Galaxies ESAC 6.9.2007

  18. X-rays from the disk-halo interface in spirals Ralf-Jürgen Dettmar @X-rays from Nearby Galaxies ESAC 6.9.2007

  19. X-rays from the disk-halo interface in spirals Ralf-Jürgen Dettmar @X-rays from Nearby Galaxies ESAC 6.9.2007

  20. X-rays from the disk-halo interface in spirals Ralf-Jürgen Dettmar @X-rays from Nearby Galaxies ESAC 6.9.2007

  21. X-rays from the disk-halo interface in spirals Ralf-Jürgen Dettmar @X-rays from Nearby Galaxies ESAC 6.9.2007

  22. numerical models of the ISM: de Avillez & Breitschwerdt X-rays from the disk-halo interface in spirals Ralf-Jürgen Dettmar @X-rays from Nearby Galaxies ESAC 6.9.2007

  23. DIG halo ofNGC 5775VLT / FORS1slit positions(Tüllmann et al 2000) X-rays from the disk-halo interface in spirals Ralf-Jürgen Dettmar @X-rays from Nearby Galaxies ESAC 6.9.2007

  24. NGC 5775rotation drops tosystemic X-rays from the disk-halo interface in spirals Ralf-Jürgen Dettmar @X-rays from Nearby Galaxies ESAC 6.9.2007

  25. NGC 891WIYNHowk et al. X-rays from the disk-halo interface in spirals Ralf-Jürgen Dettmar @X-rays from Nearby Galaxies ESAC 6.9.2007

  26. NGC 891 Havelocity field from Fabry-Perot observations Kamphuis, Peletier, Dettmar et al. A&A 2007 X-rays from the disk-halo interface in spirals Ralf-Jürgen Dettmar @X-rays from Nearby Galaxies ESAC 6.9.2007

  27. Kamphuis, Peletier, Dettmar, et al. 2007 X-rays from the disk-halo interface in spirals Ralf-Jürgen Dettmar @X-rays from Nearby Galaxies ESAC 6.9.2007

  28. Summary: • gas halo ISM is „multiphase“ • the presence of ionized gas and CRs in halos is correlated with the star formation in the underlying disk • observed „X-ray hot halos“ fit into this general picture (temp. gradients) • a strong poloidal component of the magnetic field is associated with the presence of gaseous halos • the warm ionized gaseous halos rotate differentially showing decreasing rotation with increasing hight above the plane X-rays from the disk-halo interface in spirals Ralf-Jürgen Dettmar @X-rays from Nearby Galaxies ESAC 6.9.2007

  29. VLA 6cm mosaic (15 pointings) Heesen, PhD thesis, in prep. X-rays from the disk-halo interface in spirals Ralf-Jürgen Dettmar @X-rays from Nearby Galaxies ESAC 6.9.2007

  30. Red: Halpha • Green: VLA 6.2 cm total power • Blue: ROSAT (soft X-ray)‏ • B-vectors VLA 6.2 cm X-rays from the disk-halo interface in spirals Ralf-Jürgen Dettmar @X-rays from Nearby Galaxies ESAC 6.9.2007

  31. X-rays from the disk-halo interface in spirals Ralf-Jürgen Dettmar @X-rays from Nearby Galaxies ESAC 6.9.2007

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