J/MNRAS/403/1625 Method for orientation angles of galaxies (Fridman+, 2010)
Using an assumption about the monotony of spiral arms to determine the
orientation angles of galaxies.
Fridman A.M., Poltorak S.G.
<Mon. Not. R. Astron. Soc., 403, 1625-1632 (2010)>
=2010MNRAS.403.1625F 2010MNRAS.403.1625F
ADC_Keywords: Models ; Galaxy catalogs ; Positional data
Keywords: galaxies: spiral
Abstract:
A method is proposed for the determination of the position and
inclination angles of the plane of a spiral galaxy based on the
assumption that every spiral arm is a monotonic function of the radius
against azimuthal angle. This method may yield more accurate results
than the more commonly employed isophote method, which is subject to
a number of drawbacks. Analytical study, calibration against other
methods and examples of application of the proposed method to real
galaxies are presented.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 21 72 Positional and inclination angles obtained using
MSA method for galaxies from the Ohio State
University Bright Spiral Galaxy Survey
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Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 8 A8 --- Galaxy Galaxy name
10- 12 I3 deg PA Position angle
14- 15 I2 deg e_PA rms uncertainty on PA
17- 18 I2 deg incl Inclination
20- 21 I2 deg e_incl rns uncertainty on incl
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 11-Oct-2010