Advertisement

Near- and Mid-IR Imaging of the Nuclear Starburst in NGC 3079

  • L. Armus
  • D. L. Shupe
  • K. Matthews
  • G. Neugebauer
  • B. T. Soifer
  • T. L. Hayward
  • J. W. Miles
  • J. R. Houck
Part of the Astrophysics and Space Science Library book series (ASSL, volume 190)

Abstract

The nearly edge-on Sc galaxy NGC 3079 displays strong nuclear optical emission lines of Ha, Hβ, [NII], [SII], [OI] and [OIII], and has been classified as a LINER based on the widths and relative fluxes of these lines. Observations at a variety of wavelengths have provided evidence for both a weak AGN and a starburst in and around the nucleus. Strong far-infrared emission (Soifer et al. 1987), extended mid-infrared emission (Lawrence et al. 1985), and the presence of a very large mass of molecular gas, nearly 1010 M (Irwin and Sofue 1992), lying within the central kpc, all argue for a central starburst. The high luminosity and small physical size of the nuclear H2O megamaser (Henkel et al. 1984, Haschick et al. 1990), together with the multi-component 6 cm source within the central 1 pc (Irwin and Seaquist 1988) may imply the presence of an active nucleus.

Keywords

Active Nucleus Relative Flux Energy Input Rate Infrared Astronomy Small Physical Size 
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.

References

  1. Filippenko, A.V., and Sargent, W.L.W.: 1992, Astronomical Journal 103, 28ADSCrossRefGoogle Scholar
  2. Ford, H.C. et al.: 1986, Astrophysical Journal 311, L7ADSCrossRefGoogle Scholar
  3. Haschick, A.D., et al.: 1990, Astrophysical Journal 356, 149ADSCrossRefGoogle Scholar
  4. Heckman, T.M., Armus, L., and Miley, G.K.: 1990, Astrophysical Journal, Supplement Series 74, 833ADSCrossRefGoogle Scholar
  5. Henkel, C. et al.: 1984, Astronomy and Astrophysics 142, L1ADSGoogle Scholar
  6. Irwin, J.A., and Seaquist, E.R.: 1988, Astrophysical Journal 335, 658ADSCrossRefGoogle Scholar
  7. Irwin, J.A., Seaquist, E.R., Taylor, A.R., and Duric, N.: 1987, Astrophysical Journal 313, L91ADSCrossRefGoogle Scholar
  8. Irwin, J.A., and Sofue, Y.: 1992, Astrophysical Journal 335, 658ADSCrossRefGoogle Scholar
  9. Lawrence, A., et al.: 1985, Astrophysical Journal 291, 117ADSCrossRefGoogle Scholar
  10. Soifer, B.T., et al.: 1987, Astrophysical Journal 320, 238ADSCrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media Dordrecht 1994

Authors and Affiliations

  • L. Armus
    • 1
  • D. L. Shupe
    • 1
  • K. Matthews
    • 1
  • G. Neugebauer
    • 1
  • B. T. Soifer
    • 1
  • T. L. Hayward
    • 2
  • J. W. Miles
    • 2
  • J. R. Houck
    • 2
  1. 1.Department of PhysicsCaltechPasadenaUSA
  2. 2.Department of AstronomyCornell UniversityIthacaUSA

Personalised recommendations