Advertisement

The Fermi Bubbles and Galactic Centre Star Formation

  • Roland Crocker
Conference paper
Part of the Astrophysics and Space Science Proceedings book series (ASSSP, volume 34)

Abstract

We construct a simple model of the star-formation- (and resultant supernova) driven mass and energy flows through the inner∼200pc (in diameter) of the Galaxy. Our modelling is constrained, in particular, by the non-thermal radio continuum and γ-ray signals detected from the region. The region’s star-formation activity drives an outflow of plasma, cosmic rays, and entrained, cooler gas. The plasma outflow from the Galactic Centre (GC) reaches a height of a few kpc and is compellingly related to the recently-discovered Fermi Bubbles by a number of pieces of evidence. In general, our investigations explicitly reveal the GC’s important role in the Milky Ways wider stellar ecology.

Keywords

Galactic Centre Radio Continuum Inverse Compton Galactic Centre Region Proton Population 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgements

RMC would like to thank the co-authors of the papers [6, 7, 8, 9, 18] upon which this work is based: Felix Aharonian, David Jones, Casey Law, Fulvio Melia, Tomo Oka, and Juergen Ott. He would also like to thank the organisers for a very stimulating workshop at Sant Cugat and for supporting his attendance.

References

  1. 1.
    Fermi LAT Collaboration, Ackermann, M., Ajello, M., et al. 2012, arXiv:1206.1346Google Scholar
  2. 2.
    Bland-Hawthorn, J., & Cohen, M. 2003, ApJ, 582, 246ADSCrossRefGoogle Scholar
  3. 3.
    Cheng, K. S., Chernyshov, D. O., Dogiel, V. A., Ko, C. M., & Ip, W. H. 2011, ApJ, 731, L17ADSCrossRefGoogle Scholar
  4. 4.
    Cholis, I. 2012, arXiv:1206.1607Google Scholar
  5. 5.
    Crocker, R. M., Jones, D. I., Melia, F., Ott, J., & Protheroe, R. J. A lower limit of 50 microgauss for the magnetic field near the Galactic Centre, Nature, 463, 65–67 (2010)ADSCrossRefGoogle Scholar
  6. 6.
    Crocker, R. M., Jones, D. I., Aharonian, F., et al. 2011a, MNRAS, 411, L11ADSGoogle Scholar
  7. 7.
    Crocker, R. M., & Aharonian, F. Fermi Bubbles: Giant, Multibillion-Year-Old Reservoirs of Galactic Center Cosmic Rays, Physical Review Letters, 106, 101102 (2011)Google Scholar
  8. 8.
    Crocker, R. M., Jones, D. I., Aharonian, F., Law, C. J., Melia, F., Oka, T., & Ott, J. 2011b, MNRAS, 413, 763ADSCrossRefGoogle Scholar
  9. 9.
    Crocker, R. M. 2012, MNRAS, 423, 3512ADSCrossRefGoogle Scholar
  10. 10.
    Dobler, G., & Finkbeiner, D. P. 2008, ApJ, 680, 1222ADSCrossRefGoogle Scholar
  11. 11.
    Dobler, G., Finkbeiner, D. P., Cholis, I., Slatyer, T., & Weiner, N. 2010, ApJ, 717, 825ADSCrossRefGoogle Scholar
  12. 12.
    Dobler, G. A Last Look at the Microwave Haze/Bubbles with WMAP, ApJ, 750, 17 (2012)ADSCrossRefGoogle Scholar
  13. 13.
    Dursi, L. J., & Pfrommer, C. 2008, ApJ, 677, 993ADSCrossRefGoogle Scholar
  14. 14.
    Finkbeiner, D. P. et al. 2004, ApJ, 617, 350–359ADSCrossRefGoogle Scholar
  15. 15.
    Gold, B., et al. 2010, arXiv:1001.4555Google Scholar
  16. 16.
    Guo, F., & Mathews, W. G. 2011, arXiv:1103.0055Google Scholar
  17. 17.
    Hinton, J. A., Domainko, W., & Pope, E. C. D. 2007, MNRAS, 382, 466ADSCrossRefGoogle Scholar
  18. 18.
    Jones, D. I., Crocker, R. M., Reich, W., Ott, J., & Aharonian, F. A. 2012, ApJ, 747, L12ADSCrossRefGoogle Scholar
  19. 19.
    Kasparova, A. V., & Zasov, A. V. 2008, Astronomy Letters, 34, 152ADSCrossRefGoogle Scholar
  20. 20.
    LaRosa, T. N., Brogan, C. L., Shore, S. N., Lazio, T. J., Kassim, N. E., & Nord, M. E. 2005, ApJ, 626, L23ADSCrossRefGoogle Scholar
  21. 21.
    Launhardt, R., Zylka, R., & Mezger, P. G. 2002, A&A, 384, 112ADSCrossRefGoogle Scholar
  22. 22.
    Law, C. J. 2010, ApJ, 708, 474ADSCrossRefGoogle Scholar
  23. 23.
    Lunardini, C., & Razzaque, S. 2012, Physical Review Letters, 108, 221102ADSCrossRefGoogle Scholar
  24. 24.
    Mauerhan, J. C., Cotera, A., Dong, H., et al. 2010, ApJ, 725, 188ADSCrossRefGoogle Scholar
  25. 25.
    Mertsch, P., & Sarkar, S. 2011, Physical Review Letters, 107, 091101ADSCrossRefGoogle Scholar
  26. 26.
    Morris, M., & Serabyn, E. 1996, ARA&A, 34, 645ADSCrossRefGoogle Scholar
  27. 27.
    Pohl, M., Reich, W., & Schlickeiser, R. 1992, A&A, 262, 441ADSGoogle Scholar
  28. 28.
    Pope, E. C. D. 2010, MNRAS, 404, 451ADSGoogle Scholar
  29. 29.
    Portegies Zwart, S. F., Makino, J., McMillan, S. L. W., & Hut, P. 2002, ApJ, 565, 265ADSCrossRefGoogle Scholar
  30. 30.
    Serabyn, E., & Morris, M., Nature, 382, 602 (1996)ADSCrossRefGoogle Scholar
  31. 31.
    Snowden, S. L., et al., ApJ, 485, 125 (1997)ADSCrossRefGoogle Scholar
  32. 32.
    Sofue, Y., & Handa, T. 1984, Nature, 310, 568ADSCrossRefGoogle Scholar
  33. 33.
    Sofue, Y, Reich, W., & Reich, P., 1989, ApJ, 341, 47ADSCrossRefGoogle Scholar
  34. 34.
    Sofue, Y. 1996, ApJ, 459, L69ADSCrossRefGoogle Scholar
  35. 35.
    Sofue, Y. 2000, ApJ, 540, 224ADSCrossRefGoogle Scholar
  36. 36.
    Sofue, Y. 2007, PASJ, 59, 189ADSGoogle Scholar
  37. 37.
    Spergel, D. N., & Blitz, L. 1992, Nature, 357, 665ADSCrossRefGoogle Scholar
  38. 38.
    Stolovy, S., Ramirez, S., Arendt, R. G., et al. 2006, Journal of Physics Conference Series, 54, 176ADSCrossRefGoogle Scholar
  39. 39.
    Strickland, D. K., & Heckman, T. M. 2009, ApJ, 697, 2030ADSCrossRefGoogle Scholar
  40. 40.
    Su, M., Slatyer, T. R., & Finkbeiner, D. P. 2010, ApJ, 724, 1044ADSCrossRefGoogle Scholar
  41. 41.
    Su, M., & Finkbeiner, D. P. 2012, ApJ, 753, 61ADSCrossRefGoogle Scholar
  42. 42.
    Thompson, T. A., Quataert, E., Waxman, E., Murray, N., & Martin, C. L. 2006, ApJ, 645, 186ADSCrossRefGoogle Scholar
  43. 43.
    Thompson, T. A., Quataert, E., & Waxman, E. 2007, ApJ, 654, 219ADSCrossRefGoogle Scholar
  44. 44.
    Yun, M. S., Reddy, N. A., & Condon, J. J. 2001, ApJ, 554, 803ADSCrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  1. 1.Max-Planck-Institut für KernphysikHeidelbergGermany

Personalised recommendations