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On estimation of the pitch angle for spiral arms of galaxies. / Savchenko, Sergey.

In: Astrophysical Bulletin, Vol. 67, No. 3, 2012, p. 310-317.

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Savchenko, Sergey. / On estimation of the pitch angle for spiral arms of galaxies. In: Astrophysical Bulletin. 2012 ; Vol. 67, No. 3. pp. 310-317.

BibTeX

@article{25fd5191bf934114b780dfdeb7312c9a,
title = "On estimation of the pitch angle for spiral arms of galaxies",
abstract = "The shape of the arms of spiral galaxies is usually described by logarithmic spiralswith constant pitch angles, however, some galaxies display variations of the pitch angle along their spiral arms. We propose a method of determining the pitch angle of the arms in spiral galaxies based on the window Fourier analysis of their images. This method allows us not only to infer the average pitch angle, but also to obtain its value as a function of galactocentric radius. The method is implemented in the form of freely available programs.",
keywords = "galaxies: spiral, galaxies: structure",
author = "Sergey Savchenko",
year = "2012",
doi = "10.1134/S1990341312030078",
language = "English",
volume = "67",
pages = "310--317",
journal = "Astrophysical Bulletin",
issn = "1990-3413",
publisher = "МАИК {"}Наука/Интерпериодика{"}",
number = "3",

}

RIS

TY - JOUR

T1 - On estimation of the pitch angle for spiral arms of galaxies

AU - Savchenko, Sergey

PY - 2012

Y1 - 2012

N2 - The shape of the arms of spiral galaxies is usually described by logarithmic spiralswith constant pitch angles, however, some galaxies display variations of the pitch angle along their spiral arms. We propose a method of determining the pitch angle of the arms in spiral galaxies based on the window Fourier analysis of their images. This method allows us not only to infer the average pitch angle, but also to obtain its value as a function of galactocentric radius. The method is implemented in the form of freely available programs.

AB - The shape of the arms of spiral galaxies is usually described by logarithmic spiralswith constant pitch angles, however, some galaxies display variations of the pitch angle along their spiral arms. We propose a method of determining the pitch angle of the arms in spiral galaxies based on the window Fourier analysis of their images. This method allows us not only to infer the average pitch angle, but also to obtain its value as a function of galactocentric radius. The method is implemented in the form of freely available programs.

KW - galaxies: spiral

KW - galaxies: structure

U2 - 10.1134/S1990341312030078

DO - 10.1134/S1990341312030078

M3 - Article

VL - 67

SP - 310

EP - 317

JO - Astrophysical Bulletin

JF - Astrophysical Bulletin

SN - 1990-3413

IS - 3

ER -

ID: 5488089