Skip to main content

Bars and Lenses in Spiral Galaxies: Clues for Secular Evolution

  • Conference paper
Book cover Penetrating Bars through Masks of Cosmic Dust

Part of the book series: Astrophysics and Space Science Library ((ASSL,volume 319))

  • 271 Accesses

Abstract

We analyze ~200 spiral galaxies in terms of elliptical isophotes, bar profile type, and non-axisymmetric perturbation amplitudes. More than half our sample is imaged in the H band, which enables us to derive gravitational potential and relative torque Q g . We find that bar axial ratios increase significantly with decreasing Hubble type, both for exponential and flat bars; however, at a given Hubble type, exponential bars tend to have a larger axial ratio than flat ones. We have also identified four different torque morphologies, and find that one of these is prevalent in strong bars. These results are interpreted in the context of a secular evolution scenario, in which we speculate that early-type flat bars are the descendants of late-type exponential ones.

This is a preview of subscription content, log in via an institution to check access.

Access this chapter

Chapter
USD 29.95
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
eBook
USD 259.00
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
Softcover Book
USD 329.99
Price excludes VAT (USA)
  • Compact, lightweight edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info
Hardcover Book
USD 329.99
Price excludes VAT (USA)
  • Durable hardcover edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Purchases are for personal use only

Institutional subscriptions

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

Download references

Author information

Authors and Affiliations

Authors

Editor information

Editors and Affiliations

Rights and permissions

Reprints and permissions

Copyright information

© 2004 Springer Science+Business Media New York

About this paper

Cite this paper

Hunt, L.K., Giovanardi, C., Malkan, M.A. (2004). Bars and Lenses in Spiral Galaxies: Clues for Secular Evolution. In: Block, D.L., Puerari, I., Freeman, K.C., Groess, R., Block, E.K. (eds) Penetrating Bars through Masks of Cosmic Dust. Astrophysics and Space Science Library, vol 319. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-2862-5_25

Download citation

  • DOI: https://doi.org/10.1007/978-1-4020-2862-5_25

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-94-015-7085-5

  • Online ISBN: 978-1-4020-2862-5

  • eBook Packages: Springer Book Archive

Publish with us

Policies and ethics