J/other/ChA+A/34.367 Study of PGC-54-like galaxies (Li+, 2010)
Measurements of equivalent thicknesses of 3-dimensional PGC-54-like spiral
galactic disks.
Li G., Luo Z.-Q., Peng Q.-H.
<Chinese Astron., 34, 367-373 (2010)>
=2010ChA&A..34..367L 2010ChA&A..34..367L
ADC_Keywords: Galaxies, optical ; Morphology
Keywords: Galaxies: spiral - galaxies: statistics - techniques: image processing
Abstract:
With the improved Peng's method, we have made the image processing
and spiral arm fitting of the newly released spiral galactic images
of Sloan Digital Sky Survey (SDSS), and obtained the equivalent
thicknesses of galactic disks, as well as the tangential angles of
spiral arms of 73 spiral galaxies. These physical quantities are very
important for future studies on the properties of spiral galaxies.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 57 73 The equivalent thicknesses of 73 spiral galaxies
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See also:
VII/237 : HYPERLEDA. I. Catalog of galaxies (Paturel+, 2003)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 3 A3 --- --- [PGC]
4- 8 I5 --- PGC PGC Name
10- 15 F6.2 Mpc Dist Distance
17- 21 F5.2 deg gamma Inclination angle, γ
23- 26 F4.2 kpc r0 Polar coordinate at the innermost place that
the spiral arm extends inward to
28- 32 F5.2 deg mu Tangential angle of the spiral arm µ
34- 38 F5.2 --- Lambda Parameter characterizing the winding tightness
of galaxy spiral arm Λ
40- 45 F6.3 --- e_Lambda rms uncertainty on Lambda
47- 51 F5.3 kpc H Equivalent thickness of galactic disk
53- 57 F5.3 kpc e_H rms uncertainty on H
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 02-Feb-2012