Estimation of Bar Strengths from Near-IR Images

Salo, Heikki; Laurikainen, Eija; Buta, Ronald

doi:10.1007/978-1-4020-2862-5_57

Heikki Salo⁵,
Eija Laurikainen⁵ &
Ronald Buta⁶

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

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Abstract

The relative tangential force amplitude provides an useful measure for the barassociated gravitational perturbation in galaxies. However, the estimation of gravitational field from near-IR images involves several uncertainties. Some of these uncertainties, as well as our current efforts in analyzing the effects of image noise and the artificial bulge stretch are summarized, illustrated by examples with both observational and synthetic images.

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Author information

Authors and Affiliations

Division of Astronomy, Dept.of Phys. Sciences, Univ. of Oulu, FIN-90014, Finland
Heikki Salo & Eija Laurikainen
Univ. of Alabama, Tuscaloosa, USA
Ronald Buta

Authors

Heikki Salo
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Eija Laurikainen
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Ronald Buta
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Editor information

Editors and Affiliations

University of the Witwatersrand, Johannesburg, South Africa
David L. Block & Robert Groess &
Instituto Nacional de Astrofísica, Óptica y Electrónica, Puebla, Mexico
Ivânio Puerari
The Australian National University, Canberra, Australia
Kenneth C. Freeman
Rand Afrikaans University (Soweto), South Africa
Elizabeth K. Block

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Salo, H., Laurikainen, E., Buta, R. (2004). Estimation of Bar Strengths from Near-IR Images. 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_57

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DOI: https://doi.org/10.1007/978-1-4020-2862-5_57
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-015-7085-5
Online ISBN: 978-1-4020-2862-5
eBook Packages: Springer Book Archive

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