2014ApJ...793L..19M


Query : 2014ApJ...793L..19M

2014ApJ...793L..19M - Astrophys. J., 793, L19 (2014/September-3)

The behavior of the pitch angle of spiral arms depending on optical wavelength.

MARTINEZ-GARCIA E.E., PUERARI I., ROSALES-ORTEGA F.F., GONZALEZ-LOPEZLIRA R.A., FUENTES-CARRERA I. and LUNA A.

Abstract (from CDS):

Based on integral field spectroscopy data from the CALIFA survey, we investigate the possible dependence of spiral arm pitch angle with optical wavelength. For three of the five studied objects, the pitch angle gradually increases at longer wavelengths. This is not the case for two objects where the pitch angle remains constant. This result is confirmed by the analysis of SDSS data. We discuss the possible physical mechanisms to explain this phenomenon, as well as the implications of the results.

Abstract Copyright: ∼

Journal keyword(s): galaxies: fundamental parameters - galaxies: spiral - galaxies: structure - methods: numerical - methods: observational

Simbad objects: 12

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Number of rows : 12
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026
#notes
1 NGC 7819 GiG 00 04 24.495 +31 28 19.30   14.3       ~ 134 0
2 NGC 776 GiG 01 59 54.5182947984 +23 38 39.440979708   13.4       ~ 125 0
3 NGC 2916 Sy2 09 34 57.5933209584 +21 42 18.960584796 12.81 12.74 12.05     ~ 162 1
4 NAME Great Attractor SCG 10 32 -46.0           ~ 617 0
5 Z 157-86 GiC 12 02 03.164 +29 50 53.11   14.3       ~ 109 0
6 NGC 4185 LIN 12 13 22.1960178360 +28 30 39.646606428   13.5       ~ 116 0
7 NGC 4210 LIN 12 15 15.8513778552 +65 59 07.052376192   13.4       ~ 148 0
8 NAME Shapley Supercluster SCG 13 06.0 -33 04           ~ 677 0
9 Z 132-27 LIN 13 52 22.7399528952 +21 32 21.657094296   14.5       ~ 66 0
10 NGC 5378 LIN 13 56 51.0226429536 +37 47 50.075664720   13.8       ~ 113 0
11 NGC 5406 LIN 14 00 20.1233388144 +38 54 55.474400196   13.1       ~ 133 0
12 Z 248-18 GiG 14 41 32.0219639160 +44 30 45.962947872   13.59       ~ 114 0

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