The Cluster Abell 85 and its X-ray Filament Revisited by Chandra and XMM-Newton

  • Florence Durret
  • Gastão B. Lima Neto
  • William R. Forman
  • Eugene Churazov
Conference paper
Part of the Astrophysics and Space Science Library book series (ASSL, volume 309)

Abstract

We have observed with XMM-Newton the extended 4 Mpc filament detected by the ROSAT PSPC south east of the cluster of galaxies Abell 85. We confirm the presence of an extended feature and find that the X-ray emission from the filament is best described by thermal emission with a temperature of ~ 2 keV. This is significantly lower than the ambient cluster medium, but is significantly higher than anticipated for a gas in a weakly bound extended filament. It is not clear whether this is a filament of diffuse emission or a chain of several groups of galaxies.

Keywords

Elon 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Balucinska-Church M. & McCammon D. 1992, ApJ 400, 699ADSCrossRefGoogle Scholar
  2. Briel U. & Henry P. 1995, A&A 302, L9ADSGoogle Scholar
  3. Chambers S.W., Melott A.L., Miller C.J. 2002, ApJ 565, 849ADSCrossRefGoogle Scholar
  4. Dickey J.M. & Lockman F.J. 1990, Ann. Rev. Ast. Astr. 28, 215ADSCrossRefGoogle Scholar
  5. Durret F., Felenbok P., Lobo C. & Slezak E. 1998a, A&A Suppl. 129, 281ADSCrossRefGoogle Scholar
  6. Durret F., Forman W., Gerbal D., Jones C. & Vikhlinin A. 1998b, A&A 335, 41ADSGoogle Scholar
  7. Durret F, Lima Neto G.B., Forman W., Churazov E. 2003, A&A Letters in press, astroph/0303486Google Scholar
  8. Fabian A.C., Sanders J.S., Ettori E. et al. 2001, MNRAS 321, L33ADSCrossRefGoogle Scholar
  9. Frenk C.S., White S.D.M. & Davis M. 1983, ApJ 271, 417ADSCrossRefGoogle Scholar
  10. Jenkins A., Frenk C.S., Pearce F.R. et al. 1998, ApJ 499, 20ADSCrossRefGoogle Scholar
  11. Kaastra J.S. & Mewe R. 1993, A&AS 97, 443ADSGoogle Scholar
  12. Katgert P., Mazure A., Perea J. 1996, A&A 310, 8ADSGoogle Scholar
  13. Kempner J.C., Sarazin C.L. & Ricker P.M. 2002, ApJ 579, 236ADSCrossRefGoogle Scholar
  14. Kull A., Böhringer H. 1999, A&A 341, 23ADSGoogle Scholar
  15. Liedahl D.A., Osterheld A.L. & Goldstein W.H. 1995, ApJ 438, L115ADSCrossRefGoogle Scholar
  16. Lumb D.H., Warwick R.S., Page M. & De Luca A. 2002, A&A 389, 93ADSCrossRefGoogle Scholar
  17. Markevitch M., Forman W.R., Sarazin C.L., Vikhlinin A. 1998 ApJ, 503, 77ADSCrossRefGoogle Scholar
  18. Markevitch M., Vikhlinin A., Mazzotta P. 2001 ApJ, 562, L153ADSCrossRefGoogle Scholar
  19. Tittley E.R. & Henriksen M. 2001, ApJ 563, 673ADSCrossRefGoogle Scholar
  20. Vikhlinin A., Forman W. & Jones C. 1997, ApJL 474, L7CrossRefGoogle Scholar
  21. Wang Q.D., Connolly A. & Brunner R. 1997, ApJ 487, L13ADSCrossRefGoogle Scholar
  22. West M.J., Jones C. & Forman W. 1995, ApJL 451, L5CrossRefGoogle Scholar
  23. West M.J. & Blakeslee J.P. 2000, ApJ 543, L27ADSCrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media Dordrecht 2004

Authors and Affiliations

  • Florence Durret
    • 1
  • Gastão B. Lima Neto
    • 2
  • William R. Forman
    • 3
  • Eugene Churazov
    • 4
  1. 1.Institut d’Astrophysique de ParisParisFrance
  2. 2.Instituto Astronômico e Geofísico/USPSão Paulo/SPBrazil
  3. 3.Harvard Smithsonian Center for AstrophysicsCambridgeUSA
  4. 4.MPI für AstrophysikGarchingGermany

Personalised recommendations